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TRANSCRIPT
ELTSNormal
EmergencyLoad
Emergency Lighting Transfer System(Group 1 Controller)
User Manual
2 Electronic Theatre Controls, Inc.
Emergency Lighting Transfer System User Manual 3
ContentsIntroduction................................................................................................... 5
How to use this manual ........................................................................... 5Codes and standards................................................................................ 5System Diagram....................................................................................... 6
Installation and setup chaptersInstallation..................................................................................................... 7
Unpack and Inspect.................................................................................. 7ELTS Models............................................................................................ 8Mounting the ELTS cabinet...................................................................... 9Installing Remote stations (optional) ...................................................... 11
Connecting power and control wiring to the ELTS cabinet ................... 12Connecting Emergency power (standard systems) ............................... 12Connecting Emergency power (Discrete systems)................................ 13Connecting lighting circuit wires to transfer switches ........................... 14Control and sensing wire connections ................................................... 16
Testing ......................................................................................................... 19Before you power up for the first time .................................................. 19Turn on system ...................................................................................... 19Functional checkout ............................................................................... 20
ELTS Timing, Voltage, and Line settings ................................................. 22Changing ELTS settings ......................................................................... 23Changing the Voltage Adjust setting...................................................... 25
Use and service chaptersOperation..................................................................................................... 27
Automatic operation............................................................................... 27Switching power sources manually ....................................................... 28
Service ......................................................................................................... 30Preventive maintenance......................................................................... 30
Troubleshooting ......................................................................................... 31Emergency or Normal Power Stable LED does not turn on properly..... 31The ELTS will not switch between Normal and Emergency.................. 31Remote stations cannot switch the ELTS.............................................. 32
AppendicesAppendix A: ELTS specifications............................................................... 33Appendix B: Wire connection schematics and diagrams ....................... 34Appendix C: Transfer switch control system schematics....................... 36Appendix D: Transfer switch load switching schematic......................... 37Appendix E: Test and Maintenance Log................................................... 38Appendix F: Glossary ................................................................................. 39
4 Electronic Theatre Controls, Inc.
Emergency Lighting Transfer System User Manual 5
Emergency Lighting Transfer System
IntroductionWelcome to ETC’s Emergency Lighting Transfer System (ELTS) User Manual. This manual shows you how to install and use your ELTS system. See ELTSModels on page 8 for a breakdown of ELTS models and configurations.
How to use this manualThis manual is divided into three sections:
▼ Installation on page 7 tells you how to install and test your system
▼ Operation on page 27 tells you how to use and service your system
▼ Appendix B: Wire connection schematics and diagrams on page 34 contains additional information you may need
Warnings and Caution symbolsThese symbols alert you to danger or important information:
Warning! Warns you when electricity may cause injury
Warning! Warns you when there is a possibility of other types of injury
Caution Alerts you to important information relating to equipment performance or reliability
Contacting ETCFor questions about ELTS system delivery or general information, contact ETC Customer Service at 800/688-4116.
Codes and standardsELTS systems meet the following regulatory standards for emergency lighting transfer devices:
▼ ANSI/UL 1008 – Listed, Automatic Transfer Switches
▼ ANSI/NFPA 110 – Emergency and Standby Power Systems
▼ ANSI/NFPA 70 – National Electric CodeArticle 701 – Legally Required Standby SystemsArticle 700 – Emergency SystemsArticle 540 –11(c) – Motion Picture HousesArticle 520 – 7 – Theatres and Similar LocationsArticle 518 – 3(c) – Places of Assembly
▼ City of New York, Advisory board, Electrical Department
▼ OSHA
▼ Department of Defense
6 Electronic Theatre Controls, Inc.
System Diagram
Figure 1: Diagram of a typical ELTS system
Normal/Emergency loads
Normal/Emergency loads are routed throughthe ELTS. Normal load power comes from thedimming system. If the ELTS detects a loss of
dimmer normal power, it switches theNormal/Emergency loads from dimmer normal
power to the emergency power source.
Normal powersource
L1 L2 L3 NL1 L2 L3 N
Normal power Channels 7–12 (into ELTS)
Normal/Emergency loads Channels 7–12 (from ELTS)
Normal loads
Normal loads are connected directlyto the dimming system. If main power
fails, normal loads are dark.
Fire alarm activationAUX activation
Normal loadsChannels 1–6
Up to ten Remote stationscan be connected to the ELTS
L1, L2 and L3sensing wires
Generatorstartwire
ELTS cabinet
Dimmer rack
Emergency source(typically a generator)
Emergency Lighting Transfer System User Manual 7
InstallationUnpack and Inspect
Before you begin installation, check your shipment so you know it arrived complete and undamaged.
1. Check the shipping container for obvious physical damage:
▼ Torn or opened containers
▼ Water stains or wetness
▼ Crushed or punctured boxes
▼ Other shipping-related damage2. If you find damage, document it to help with a claim against your shipper.
3. Unpack your order and check the contents against the Bill of Materials to be sure your order is complete.
Note: ELTS systems are available as either single or three phase products. Make sure your ELTS type matches your phase configuration.
4. Open the ELTS cabinet door and check for loose connections or broken components caused by shipping vibration.
5. If you discover a problem with your order, call ETC Customer Service at 800/688-4116.
Figure 2: Identifying ELTS components
ASCO
POWER
SUPPLY
PSLUG
GROUND DUE TO SHIPPING, MFG. IS NOT RESPONSIBLE FORLOOSE CONNECTIONS, TIGHTEN ALL CONNECTIONS
BEFORE ENERGIZING.
12 POLE TRANSFER SWITCH
TS1
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN
2N
N1
NL2
NN
3N
L3N
L5N
N4
NN
6N
L6N
N5
13
2
TS2
12 POLE TRANSFER SWITCH
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN
2N
N1
NL2
NN
3N
L3N
L5N
N4
NN
6N
L6N
N5
13
2
TS4
12 POLE TRANSFER SWITCH
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN
2N
N1
NL2
NN
3N
L3N
L5N
N4
NN
6N
L6N
N5
13
2
TS3
12 POLE TRANSFER SWITCH
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN
2N
N1
NL2
NN
3N
L3N
L5N
N4
NN
6N
L6N
N5
13
2
EPDB
A B C N
8910 7 6 345 2 1
A B C N
SR3BSR3BSR3B SR3BSR3B SR3B
F1
TS11
TS29
TS30
TS10
TS12
EA
TB2
TB1
TB3
EC
G3
NA
NB
NC
A2
G2
G1
A1
F2
R3
R4
R56
5
4
3
R2
R11
2
T8
T9
T6
T7
T3
T4
T5
T1
T2
1
3
2
6
5
4
3
1
2
6
5
4
3
1
2
9
8
6
7
4
5
3
1
2
9
8
6
7
4
5
3
1
2
6
5
4
3
1
2
1
3
2
ASCO
POWER
SUPPLY
PSLUG
GROUND DUE TO SHIPPING, MFG. IS NOT RESPONSIBLE FORLOOSE CONNECTIONS, TIGHTEN ALL CONNECTIONS
BEFORE ENERGIZING.
12 POLE TRANSFER SWITCH
TS1
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN2
NN1
NL2
NN3
NL3
NL5
NN4
NN6
NL6
NN5
13
2
TS2
12 POLE TRANSFER SWITCH
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN2
NN1
NL2
NN3
NL3
NL5
NN4
NN6
NL6
NN5
8910 7 6 345 2 1
13
2
EPDB
A B C N
A B C N
SR3BSR3BSR3B SR3BSR3B SR3B
F1
TS11
TS29
TS30
TS10
TS12
EA
TB2
TB1
TB3
EC
G3
NA
NB
NC
A2
G2
G1
A1
F2
R3
R4
R56
5
4
3
R2
R11
2
T8
T9
T6
T7
T3
T4
T5
T1
T2
1
3
2
6
5
4
3
1
2
6
5
4
3
1
2
9
8
6
7
4
5
3
1
2
9
8
6
7
4
5
3
1
2
6
5
4
3
1
2
1
3
2
Control panel
Transfer switch assemblies
Isolation relays
EmergencyLine and Neutral lugs ELTS power supply
Isolation relays
ELTS power supply
EmergencyGround lug
EmergencyLine and Neutral lugs
EmergencyGround lug
Terminalblocks
Terminalblocks
ELTS 850, 1820, 2420
ELTS 450, 620, 1220
8 Electronic Theatre Controls, Inc.
ELTS Models
Figure 3: Large and small ELTS cabinets
Single or three phase ELTSELTS systems are available as either single or three phase products and will not operate on phase configurations they are not designed for.
Remote station (part # 1093A2023)
▼ Provides front panel keyswitch control at remote locations
▼ Link up to ten stations with parallel wiring
▼ Normal and Emergency LEDs indicate ELTS status
Electronic Theatre Controls Inc.
MODEL ELTS
AUTOMATIC TRANSFER SWITCH FOR EMERGENCY SYSTEMS
ISSUE NO. 934
Operational Current: 200A Max 3 Phase
POWERPOWER
UL1008 Listed
Operational Voltage: 120/208v (3p+N+ )
Frequency: 50/60Hz.
Short-circuit current: 10,000 AIC
Electronic Theatre Controls Inc.Middleton, WI Made in USA
C®®
GENERATOR
EMERGENCY POWER
FIRE ALARM
AUXILIARY
NORMAL POWER
TRANSFER SIGNAL
START
TRANSFER SIGNAL
STABLE
STABLE
42 31 86 75 12119 10
EMERGENCYNORMAL AUTO
EMERGENCYOPERATION
NORMALOPERATION
Electronic Theatre Controls Inc.
MODEL ELTS
AUTOMATIC TRANSFER SWITCH FOR EMERGENCY SYSTEMS
ISSUE NO. 934
Operational Current: 200A Max 3 Phase
POWERPOWER
UL1008 Listed
Operational Voltage: 120/208v (3p+N+ )
Frequency: 50/60Hz.
Short-circuit current: 10,000 AIC
Electronic Theatre Controls Inc.Middleton, WI Made in USA
C®®
GENERATOR
EMERGENCY POWER
FIRE ALARM
AUXILIARY
NORMAL POWER
TRANSFER SIGNAL
START
TRANSFER SIGNAL
STABLE
STABLE
42 31 86 75 12119 10
2413 14 15 16 17 18 2119 20 22 23
EMERGENCYNORMAL AUTO
EMERGENCYOPERATION
NORMALOPERATION
Large ELTS cabinet (30" wide x 54" tall x 9" deep) ELTS 850 8 circuits of 50 ampsELTS 1820 18 circuits of 20 ampsELTS 2420 24 circuits of 20 amps
Small ELTS cabinet (30" wide x 36" tall x 9" deep) ELTS 450 4 circuits of 50 ampsELTS 620 6 circuits of 20 ampsELTS 1220 12 circuits of 20 amps
POWERPOWEREMERGENCYNORMAL AUTO
EMERGENCYOPERATION
NORMALOPERATION
Figure 4: Remote station
Emergency Lighting Transfer System User Manual 9
Mounting the ELTS cabinetMount the ELTS on a load-bearing wall, in a location where it will not be subject to tampering or vandalism. If possible, install the ELTS where it is most secure from damage by a fire, flood or other incident likely to require its use. Do not install the ELTS inside any other electrical enclosure.
Physical requirements for mountingYou must mount either size ELTS cabinet with sufficient front clearance (30 inches) to allow the door to open completely.
Figure 5: ELTS cabinet mounting dimensionsNote: When planning your installation, make sure to leave space around the
cabinet for entry and exit wire conduit. Emergency line and neutral conduit may require extra space due to increased bend radius requirements for larger cables.
30.000" (cabinet)24.250" (bolts)
37.187"(bolts)
36.000"(cabinet)
9.375"
Electronic Theatre Controls Inc.
MODEL ELTS
AUTOMATIC TRANSFER SWITCH FOR EMERGENCY SYSTEMS
ISSUE NO. 934
Operational Current: 200A Max 3 Phase
POWERPOWER
UL1008 Listed
Operational Voltage: 120/208v (3p+N+ )
Frequency: 50/60Hz.
Short-circuit current: 10,000 AIC
Electronic Theatre Controls Inc.Middleton, WI Made in USA
C®®
GENERATOR
EMERGENCY POWER
FIRE ALARM
AUXILIARY
NORMAL POWER
TRANSFER SIGNAL
START
TRANSFER SIGNAL
STABLE
STABLE
42 31 86 75 12119 10
EMERGENCYNORMAL AUTO
EMERGENCYOPERATION
NORMALOPERATION
Electronic Theatre Controls Inc.
MODEL ELTS
AUTOMATIC TRANSFER SWITCH FOR EMERGENCY SYSTEMS
ISSUE NO. 934
Operational Current: 200A Max 3 Phase
POWERPOWER
UL1008 Listed
Operational Voltage: 120/208v (3p+N+ )
Frequency: 50/60Hz.
Short-circuit current: 10,000 AIC
Electronic Theatre Controls Inc.Middleton, WI Made in USA
C®®
GENERATOR
EMERGENCY POWER
FIRE ALARM
AUXILIARY
NORMAL POWER
TRANSFER SIGNAL
START
TRANSFER SIGNAL
STABLE
STABLE
42 31 86 75 12119 10
2413 14 15 16 17 18 2119 20 22 23
EMERGENCYNORMAL AUTO
EMERGENCYOPERATION
NORMALOPERATION
30.000" (cabinet)24.250" (bolts)
55.187"(bolts)
54.000"(cabinet)
9.375"
Large cabinet Small cabinet
10 Electronic Theatre Controls, Inc.
Planning wire entry into the ELTS cabinetThe Emergency power connections must enter the cabinet from the top or side of the cabinet within six inches of the top left corner.
Control, Normal power sensing and options wires connect most easily if they enter above the Remote station terminal or just below the Emergency sensing terminal on the left side of the cabinet.
Note: Do not run the control, normal power sensing and options wiring in the same conduit as Emergency phase or load power wiring.
Load wires in from the dimmer rack and out to the lighting loads connect most easily if they enter through the bottom of the cabinet either between or beside the transfer switch assemblies.
Note: Except for the emergency power supply wires, which must enter near the top left corner of the cabinet, recommended conduit entry locations may be changed based on your installation requirements.
Figure 6: ELTS components
ASCO
POWER
SUPPLY
PSLUG
GROUND DUE TO SHIPPING, MFG. IS NOT RESPONSIBLE FORLOOSE CONNECTIONS, TIGHTEN ALL CONNECTIONS
BEFORE ENERGIZING.
12 POLE TRANSFER SWITCH
TS1
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN2
NN1
NL2
NN3
NL3
NL5
NN4
NN6
NL6
NN5
13
2
TS2
12 POLE TRANSFER SWITCH
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN2
NN1
NL2
NN3
NL3
NL5
NN4
NN6
NL6
NN5
13
2
TS4
12 POLE TRANSFER SWITCH
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN2
NN1
NL2
NN3
NL3
NL5
NN4
NN6
NL6
NN5
13
2
TS3
12 POLE TRANSFER SWITCH
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN2
NN1
NL2
NN3
NL3
NL5
NN4
NN6
NL6
NN5
8910 7 6 345 2 1
A B C N
13
2
EPDB
A B C N
SR3BSR3BSR3B SR3BSR3B SR3B
1 F1
TS11
TS29
TS30
TS10
TS12
EA
TB2
TB1
TB3
EC
G3
NA
NB
NC
A2
G2
G1
A1
F2
3
2
R3
R4
R56
5
4
3
R2
R11
2
T8
T9
T6
T7
T3
T4
T5
T1
T2
1
3
2
6
5
4
3
1
2
6
5
4
3
1
2
9
8
6
7
4
5
3
1
2
9
8
6
7
4
5
3
1
2
6
5
4
3
1
2
Emergency power lugs
Control panel
Transfer switch manual operation handle
Remote stations
Fire alarm transfer
Auxiliary transfer
Generator start
Normal sensing
Emergency sensing
Transfer switch assembly
Emergency power conduit entry area
Recommendedcontrol conduit location
Recommendedcontrol conduit location Recommended
load input and output conduit locations
ELTS power supply
Isolation relays
Factory wired terminal
Factory wired terminal
Emergency Lighting Transfer System User Manual 11
Mounting the cabinetAfter determining where you want to install the cabinet, follow these instructions.
1. Install two 3/8" bolts 24.25 inches apart for the lower two support slots (the installer must supply the mounting hardware).
2. Use the mounting dimensions from Figure 5: ELTS cabinet mounting dimensions on page 9 to drill the holes for the upper two 3/8” bolts.
3. Place the ELTS cabinet on the wall supported by the two lower bolts.
Caution ELTS cabinets are very heavy. Make sure you have adequate equipment (or help) to lift the cabinet into place and support it while you secure the top two bolts.
4. Secure the ELTS to the wall with the two upper 3/8" bolts.
Installing Remote stations (optional)1. Install a standard two gang backbox (4" x 4" x 3.5") and run conduit from it
to the ELTS cabinet.
2. Pull five conductor, Class 2 (12 Vdc) wiring through from the backbox to the cabinet.
3. Connect the wires to the terminal strip on the back of the remote station. Make a note of each wire’s terminal assignment.
Figure 7: Remote station terminal connections4. Install the Remote station onto the backbox with four 6 - 32 x 1/2” oval
head machine screws (provided).
5. To install multiple Remote stations, repeat steps 1 – 4, wiring in parallel between Remote station terminal blocks.
Note: To avoid confusion, use the same wire terminal assignment at each Remote station you install.
Refer to Connecting Remote stations to the ELTS on page 17 for instructions for connecting Remote station wiring inside the ELTS cabinet.
POWERPOWER
1 2 3 4 5 6
EMERGENCYNORMAL AUTO
EMERGENCYOPERATION
NORMALOPERATION
Connect the five conductor class 2 wires to terminals 1, 2, 3, 4 and 5 (wire colors may vary)
12 Electronic Theatre Controls, Inc.
Connecting power and control wiring to the ELTS cabinetWarning! To prevent death or injury due to electrical shock, Normal and
Emergency power to the ELTS must be turned off any time you are connecting or servicing any ELTS.
Connecting Emergency power (standard systems)Note: Standard ELTS systems connect Emergency power to phase lugs and
distribute it through pre-wired overload protection circuitry. Discrete systems do not have Emergency power lugs. Go to Connecting Emergency power (Discrete systems) on page 13 for instructions.
The Emergency power lugs are in the upper left of the ELTS cabinet. The ELTS is available in one or three phase power configurations.
1. Cut a hole within six inches of the top left corner of the ELTS cabinet
Note: Top conduit connections are recommended to reduce the cable bending necessary to connect to the lugs.
2. Install conduit and pull the Emergency power cables into the cabinet.
3. Using Figure 9, below, connect phase power cable to the correct lug:
▼ Three phase power cables connect to lugs A, B, and C
▼ Single phase power cables connect to lugs A and BNote: You cannot connect an ELTS designed for three phase operation to
single phase power or a single phase ELTS to a three phase source.4. Connect the Neutral cable to the Neutral lug.
5. Connect the Ground cable to the Ground lug.
Figure 9: Connecting Emergency power to the ELTSTable 1: Emergency power lug wire sizes and connection torques
6. Go to Connecting lighting circuit wires to transfer switches on page 14 for instructions on connecting lighting load wires.
Connection type Wire size Torque
Phase and Neutral lugs (3 phase) 6 AWG to 2/0 275 in/lbs
Phase and Neutral lugs (single phase) 6 AWG to 250 MCM 275 in/lbs
Ground lug (both phase types) 14 AWG to 2/0 50 in/lbs
Figure 8: Emergency lugs
Emergency power connection lugs
NCBA
LUG
GROUND DUE TO SHIPPING, MFG. IS NOT RESPONSIBLE FORLOOSE CONNECTIONS, TIGHTEN ALL CONNECTIONS
BEFORE ENERGIZING.
A B C N
Ground lug
Phase A lug
Phase C lug(Three phase ELTS only)
Phase B lug
Neutral lug
Emergency Lighting Transfer System User Manual 13
Connecting Emergency power (Discrete systems)A Discrete ELTS does not have Emergency power lugs. Instead, Discrete systems wire emergency feeds directly to transfer switch Emergency inputs. Transfer switch assemblies connect either 20 amp circuits (up to six), or 50 amp circuits (up to two).
Note: Discrete ELTS systems require external distribution and overload protection circuitry.
1. Attach the conduit for the wires from the dimmer rack to the bottom of the ELTS cabinet (recommended.)
2. Pull Emergency feed Line and Neutral wires to the Emergency feed terminals on the right side of the transfer switches. See Figure 10, left, to match switch assembly load assignments.
3. Connect the Ground lug in the upper left corner to building Ground with a 14AWG to 2/0 wire and torque it to 50 in/lbs.
4. Connect Emergency feed Neutral wires to the EN-labeled terminals.
▼ 20 amp switches – connect Neutral wires to EN1 through EN6
▼ 50 amp switches – connect Neutral wires to EN1 and EN2
5. Connect Emergency feed Line wires to the EL-labeled terminals.
▼ 20 amp switches – connect Neutral wires to EL1 through EL6
▼ 20 amp switches – connect Neutral wires to EL1 and EL2
6. Repeat steps 2 and 3 for the other transfer switch assemblies.
Figure 11: 50 and 20 amp transfer switch Emergency feed connections7. Torque the connections to the correct values using Table 2, below.
Table 2: Switch assembly wire sizes and connection torques
Wire size Torque Wire size Torque
14 – 10 AWG 35 in/lbs 8 AWG 40 in/lbs
6 – 4 AWG 45 in/lbs 3 AWG to 2/0 50 in/lbs
Figure 10: DiscreteEmergency connections
Ground lug only, no Emergency power lugs
Emergency source wires connect directly
12 POLE TRANSFER SWITCH
TS1
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN
2N
N1
NL2
NN
3N
L3N
L5N
N4
NN
6N
L6N
N5
13
2
13
2
LN1
EN1
NN
1
LL2
EL2
NL2
LN2
EN2
NN
2
LL1
EL1
NL1
4 POLE TRANSFER SWITCH
TS1
Emergencyfeed Neutral wireEmergencyfeed Line wire
50 amp switch – 4 wires for 2 circuits 20 amp switch – 12 wires for 6 circuits
14 Electronic Theatre Controls, Inc.
Connecting lighting circuit wires to transfer switchesEach transfer switch can have up to six 20 amp circuits or two 50 amp circuits connected to it. You need to connect Line and Neutral inputs from the dimmer rack and outputs to the emergency lighting loads.
Table 3: Switch assembly wire sizes and connection torques
20 amp dimmer rack Load and Neutral wire input connections1. Attach the conduit for the wires from the dimmer rack to the bottom of
the ELTS cabinet (recommended.)
2. Connect a Neutral wire for each dimmer circuit to terminals NN1 through NN6 on the right side of the transfer switch assembly. See Figure 12, left, to match switch assemblies to loads.
3. Connect a Line wire for each dimmer circuit to terminals NL1 through NL6on the right side of the transfer switch assembly.
4. Repeat steps 2 and 3 for the other transfer switch assemblies.
Figure 13: 20 amp Transfer switch connections for Line and Neutral wires
20 amp lighting load Line and Neutral output connections1. Attach the conduit for the wires to the lighting loads through the bottom
of the ELTS cabinet (recommended).
2. Connect a Neutral wire for each lighting load to terminals LN1 through LN6 on the left side of the transfer switch assembly. See Figure 12, above, to match switch assemblies to loads.
3. Connect a Line wire for each lighting load to terminals LL1 through LL6 onthe left side of the transfer switch assembly.
4. Repeat steps 2 and 3 for the other transfer switch assemblies.
Wire size Torque Wire size Torque
14 – 10 AWG 35 in/lbs 8 AWG 40 in/lbs
6 – 4 AWG 45 in/lbs 3 AWG to 2/0 50 in/lbsCircuits
1 – 6Circuits
7 –12
Circuits13 –18
Circuits19 – 24
Figure 12: 20 amp Transferswitch circuit assignments
12 POLE TRANSFER SWITCH
TS1
EL4
LL4
LL1
EL1
LN1
EN1
LN2
LL2
EN2
EL2
LL3
EL3
LN3
EN3
LN4
EN4
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
NL4
NL1
NN
2N
N1
NL2
NN
3N
L3N
L5N
N4
NN
6N
L6N
N5
13
2
NL1
NN
2N
N1
NL2
LL5
EL5
LL6
LN5
EL6
EN5
LN6
EN6
Line wire from dimmer
Neutral wire from dimmer
Input connections for Line and Neutral wires from the dimmer rack (Normal power)
Lighting load Neutral output wire
Lighting load Line output wire
Lighting load Line and Neutral terminals
Emergency feeds
Emergency Lighting Transfer System User Manual 15
50 amp dimmer rack Load and Neutral wire input connections1. Attach the conduit for the wires from the dimmer rack to the bottom of
the ELTS cabinet (recommended.)
2. Connect a Neutral wire for each dimmer circuit to terminals NN1 and NN2on the right side of the transfer switch assembly. See Figure 14, left, to match switch assemblies to loads.
3. Connect a Line wire for each dimmer circuit to terminals NL1 and NL2 onthe right side of the transfer switch assembly.
4. Repeat steps 2 and 3 for the other transfer switch assemblies.
50 amp lighting load Line and Neutral output connections1. Attach the conduit for the wires to the lighting loads through the bottom
of the ELTS cabinet (recommended.)
2. Connect a Neutral wire for each lighting load to terminals LN1 and LN2 onthe left side of the transfer switch assembly. See Figure 14, to match switch assemblies to loads.
3. Connect a Line wire for each lighting load to terminals LL1 and LL2 on the left side of the transfer switch assembly.
4. Repeat steps 2 and 3 for the other transfer switch assemblies.
Figure 15: 50 amp Transfer switch connections for Line and Neutral wires
Circuits1 & 2
Circuits3 & 4
Circuits5 & 6
Circuits7 & 8
Figure 14: 50 amp transferswitch circuit assignments
13
2
LN1
EN1
NN
1
LL2
EL2
NL2
LN2
EN2
NN
2
LL1
EL1
NL1
4 POLE TRANSFER SWITCH
TS1
Line wire from dimmer
Neutral wire from dimmer
Input connections for Line and Neutral wires from the dimmer rack (Normal power)
Lighting load Neutral output wire
Emergency Line and Neutral input terminals
Lighting load Line output wire
Lighting load Line and Neutral terminals
Emergency feeds
16 Electronic Theatre Controls, Inc.
Control and sensing wire connectionsControl and power sensing wires connect to terminal blocks on the left side of the ELTS cabinet.
Terminals accept 8 to 22 AWG wires. Torque terminal screws to 18 in/lbs.
1. Install control and sensing wire conduit on the left side of the ELTS cabinet above the remote station connection terminals or below the Emergency power sensing terminals (recommended conduit location).
2. Pull the wires into the cabinet.
Connecting the Normal power sensing wiresNormal power sensing wires connect to the phase lugs of the dimmer rack connected to the ELTS. They attach to the Normal power sensing terminal block. Each sensing wire must connect to the ELTS through a 15 amp circuit breaker located outside the ELTS cabinet.
Note: Power sensing wires must be 12 AWG or larger.1. Connect a sensing wire to each phase lug of the dimmer rack connected
to the ELTS. Mark each wire to identify its phase at the ELTS rack.
2. Connect each sensing wire to a 15 amp circuit breaker close to the dimmer rack. Circuit breakers cannot be installed in the ELTS cabinet.
3. Pull the wires from the circuit breakers through conduit to the Normal power sensing terminal block in the ELTS cabinet.
4. Connect the sensing wires to the Normal power sensing terminal block:
▼ Phase A to terminal 1 (across from red 12AWG wires labeled NA)▼ Phase B to terminal 3 (across from unlabeled white 14AWG wire)▼ Phase C to terminal 5 (across from red 12AWG wires labeled NC)
Note: On single phase (three wire) systems, terminal 5 will not be used.
Connecting the Emergency power sensing wiresEmergency power sensing wires on Standard ELTS systems with front panel circuit breaker or fuse panels are wired from the Emergency power lugs to the correct terminals on the Emergency power terminal block at the factory.
Emergency power sensing wires on Discrete ELTS systems without front panel circuit breakers must be wired into the ELTS cabinet.
Note: Emergency power sensing wires must be 12 AWG or larger and connect through an external 15 amp circuit breaker.
1. Connect a sensing wire to phase A and C (A and B on single phase systems) of the Emergency power supply. Mark each wire to identify its phase at the ELTS rack.
2. Pull the wires through the conduit to the Emergency power sensing terminal block in the ELTS cabinet.
3. Connect the sensing wires to the Emergency sensing terminal block:
▼ Connect phase A to terminal 1 (across from wire EA)▼ Connect phase C to terminal 3 (across from wire EC)
Note: On single phase (three wire) ELTS systems, connect phase B to terminal 3.
1 F1
TS11
TS29
TS30
TS10
TS12
EA
TB2
TB1
TB3
EC
G3
NA
NB
NC
A2
G2
G1
A1
F2
3
2
R3
R4
R56
5
4
3
R2
R11
2
T8
T9
T6
T7
T3
T4
T5
T1
T2
1
3
2
6
5
4
3
1
2
6
5
4
3
1
2
9
8
6
7
4
5
3
1
2
9
8
6
7
4
5
3
1
2
6
5
4
3
1
2
Figure 16: Control and Sensingwire terminal connections
Door control and indicator connections (prewired)
Remote station connections
Fire alarm signal transfer
Auxiliary signal transfer
Engine/generatorstart
Normal power sensing
Emergencypower sensing
Transfer switch connections(prewired)
Emergency Lighting Transfer System User Manual 17
Connecting the Engine/generator starting wiresThe ELTS system can provide both normally open and normally closed starting circuits for engine generator activation.
1. Connect two wires to the terminals of your engine/generator starting circuit.
Note: Consult your generator installation manual for start signal wiring information.
2. Pull the wires through the conduit to the engine/generator start terminal block.
3. Connect one of the starting wires to terminal 3 (across from wire G2).
4. Connect the other starting wire to terminal 1 or 5:
▼ For a closed start signal, connect the wires to terminal 1 (across from wire G1)
▼ For an open start signal, connect the wires to terminal 5 (across from wire G3)
Connecting Remote stations to the ELTSYou can connect up to 10 Remote stations to the ELTS with parallel wiring.
1. Pull the Remote station wires to the ELTS Remote station terminal.
Note: You must know the wire assignments used at the Remote station being connected. For Remote Station installation instructions see page 11.
2. Connect Remote terminal wire 1 (Common) to terminal 1.
3. Connect Remote terminal wire 2 (Normal Select) to terminal 2.
4. Connect Remote terminal wire 3 (Emergency Select) to terminal 3.
5. Connect Remote terminal wire 4 (Normal indicator LED) to terminal 4.
6. Connect Remote terminal wire 5 (Emergency indicator LED) to terminal 5.
Figure 18: Remote Station terminal connections (to ELTS connector)
G3
G2
G1
6
5
4
3
1
2
Figure 17: Connectionsfor Engine/generator
starting wires
Closed start signal
Open start signal
Alwaysconnected
R3
R4
R5
6
5
4
3
R2
R11
2
Remote terminal 1
Remote terminal 2
Remote terminal 3
Remote terminal 4
Remote terminal 5
18 Electronic Theatre Controls, Inc.
Connecting fire alarm activationYou can connect your ELTS to your fire alarm system so it switches to Emergency when the alarm is triggered. Your fire alarm system must be able to provide an open signal when it activates.
1. Connect two wires to the terminals of your fire alarm activation circuit.
2. Pull the wires through the conduit to the fire alarm terminal block.
3. Remove the shorting wire between terminal 1 and terminal 2.
4. Connect one wire to terminal 1 (across from wire F1).
5. Connect the other wire to terminal 2 (across from wire F2).
Note: If you do not use the fire alarm activation feature, leave the shorting wire in place or the ELTS will not operate properly.
Connecting auxiliary activationYou can connect your ELTS to an auxiliary circuit so it switches to Emergency when the circuit is triggered. Your auxiliary circuit must provide an open signal when it activates.
1. Connect two wires to the terminals of your auxiliary circuit.
2. Pull the wires through the conduit to the auxiliary terminal block.
3. Remove the shorting wire between terminal 1 and terminal 2.
4. Connect one wire to terminal 1 (across from wire A1).
5. Connect the other wire to terminal 2 (across from wire A2).
Note: If you do not use the auxiliary activation feature, leave the shorting wire in place or the ELTS will not operate properly.
1 F1
A2
A1
F2
3
2
1
3
2
Figure 19: Connectingfire alarm and auxiliary
circuit wires
Remove Aux. shorting wire and install Aux. circuit wires in terminals 1 and 2
Remove Fire alarm shorting wire and install Fire alarm circuit wires in terminals 1 and 2
Emergency Lighting Transfer System User Manual 19
TestingBefore you power up for the first time
Checking transfer switch operation manually By checking transfer switch manual operation before you apply power, you reduce the possibility of failure caused by mechanically frozen, damaged or obstructed switches. Each switch should rotate without catching or binding.
Warning! Normal and Emergency power should be off when you open the ELTS cabinet to check switch operation. Opening the cabinet with power applied may result in death or injury from electrical shock.
1. Open the ELTS cabinet.
Warning! Rotating the transfer switch assemblies manually with Normal or Emergency power applied may result in the assemblies switching automatically, causing severe hand injuries.
2. Turn the manual operation handle 90° clockwise. E (Emergency) should be visible on the assembly about 1.5 inches above the handle.
3. Rotate the handle 180° counter-clockwise. N (normal) should be visible.
Note: If you have difficulty operating the switch, check for installation debris that may be blocking switch operation.
4. Repeat steps 2 and 3 with the remaining transfer switch assemblies.
Turn on systemVoltage checkout1. Apply power to the ELTS and connected dimmer rack at the main circuit
breaker. The green Normal LED lights.
2. Apply emergency power. The red Emergency light turns on.
Warning! ELTS voltage tests should only be performed by qualified personnel using extreme caution. Opening the cabinet with power applied exposes you to death or injury from electrical shock.
3. Open the ELTS cabinet.
4. Use a digital voltmeter (DVM) to test the feed voltage at the Normal power sensing terminal block (Figure 16 on page 16 for location). Phase A is on terminal 1, phase B on terminal 3 and phase C on terminal 5. Voltage must be within ±10 percent of the rated voltage for the ELTS.
5. Use the DVM to test the feed voltage at the Emergency power lugs. Phase lugs are labeled either A, B or C. Voltage values must be within ±10 percent of the rated voltage for the ELTS.
6. Close the ELTS cabinet.
20 Electronic Theatre Controls, Inc.
Functional checkoutAfter verifying the Normal and Emergency voltages, check the ELTS system functions.
Figure 20: Local control operation and LED indications
Switch function1. Insert the key into the keyswitch on the front panel of the ELTS.
2. Turn the key to EMERGENCY POWER. The red light above EMERGENCYOPERATION turns on and the emergency loads go to full brightness. If Emergency power is provided by an engine/generator, there will be a short delay as the generator turns on and the voltage and frequency stabilize.
3. Release the key. The keyswitch returns to AUTO (center) and the EMERGENCY OPERATION light remains on.
4. Turn the key to the NORMAL POWER position. The green light below NORMAL OPERATION turns on if the system is functioning correctly.
5. Release the key. The keyswitch returns to AUTO and the NORMALOPERATION light remains on.
Remote switch functionsAfter confirming correct function of the keyswitch on the front of the ELTS cabinet, repeat the switch function checkout procedure at every remote station installed on your system.
Operational Current: 200A Max 3 Phase
Electronic Theatre Controls Inc.MODEL ELTS
AUTOMATIC TRANSFER SWITCH FOR EMERGENCY SYSTEMS
ISSUE NO. 934
POWERPOWER
UL1008 Listed
Operational Voltage: 120/208v (3p+N+ )Frequency: 50/60Hz.Short-circuit current: 10,000 AIC
Electronic Theatre Controls Inc.Middleton, WI Made in USA
©®®
GENERATOR
EMERGENCY POWER
FIRE ALARM
AUXILIARY
NORMAL POWER
TRANSFER SIGNAL
START
TRANSFER SIGNAL
STABLE
STABLE
EMERGENCYNORMAL AUTO
EMERGENCYOPERATION
NORMALOPERATION
Lights when Normal power is used
Keyswitch selects ELTS preference between Normal and Emergency
Lights when Emergency power is used
Lit if Normal power is acceptable
Lights when ELTS sends a Generator start signal
Lit if Emergency power is acceptable
Lights when ELTS receives a fire alarm activation
Lights when ELTS receives a auxiliary activation
Emergency Lighting Transfer System User Manual 21
Automatic functionThe automatic function tests the ELTS’s ability to switch back and forth from Normal to Emergency when Normal power is interrupted or restored.
1. Make sure the NORMAL OPERATION LED is lit on the ELTS front panel.
2. Turn off Normal power to the dimmer rack connected to the ELTS.
▼ The NORMAL OPERATION and NORMAL POWER STABLE LEDson the ELTS front panel go out
▼ The ELTS switches to Emergency power (the EMERGENCYOPERATION and EMERGENCY POWER STABLE LEDs light, and the emergency loads go to full brightness)
▼ If Emergency power is provided by an engine/generator, there will be a short delay before switching as the generator turns on and the voltage and frequency stabilize
3. Restore Normal power.
▼ The ELTS switches back to Normal power after the retransfer delay times out (the default setting is thirty minutes)
▼ On the front of the ELTS, the EMERGENCY OPERATION and EMERGENCY POWER STABLE LEDs turn off and the NORMALOPERATION and NORMAL POWER STABLE LEDs light
▼ If used, the Emergency power engine/generator turns off when the cool down time is complete.
Options functionELTS systems can also be activated by fire alarm and auxiliary circuits. Both are operated by a normally closed circuit controlled by the fire alarm or auxiliary relays. When the fire alarm or auxiliary circuit activates, the relay opens, causing the ELTS to switch to Emergency power. To test option relay function, either:
1. Activate the fire alarm or auxiliary relay.
▼ The ELTS should switch to Emergency power and the emergency loads should go to full
2. If you do not wish to activate the fire alarm or auxiliary circuit, generate an open circuit at the ELTS connection to the fire alarm or auxiliary circuit by disconnecting one of the two wires to the ELTS cabinet.
▼ The ELTS will switch to Emergency power and the emergency loads should go to full
Note: The second method tests the ELTS response to an open circuit, but does not confirm the fire alarm or auxiliary relay’s ability to open the circuit to the ELTS.
22 Electronic Theatre Controls, Inc.
ELTS Timing, Voltage, and Line settingsFactory settings for timing, source voltage, and line frequency work best for most installations. If necessary, you can adjust settings after installation.
Warning! Improper setting changes may affect normal operation of the ELTS and result in switching function failure. Only make changes to timing, voltage, and frequency settings if you are familiar with the system.
Table 4: ELTS timing settings
Table 5: ELTS Phase frequency settings
Table 6: ELTS source voltage settings:
Note: Voltage Adjust also reduces Emergency Pickup and Dropout voltages. See Table 7 on page 25 for voltage values when Voltage Adjust is set to LOW.
Delay type Factory setting Adjustment range Adjusted by
Override Normal source outage delay 3 seconds 1 or 3 seconds DIP switch S3 – 1
Transfer to Emergency delay 0 seconds 0 seconds - 5 minutes Potentiometer P2
Return to Normal delay 5 minutes 1 second - 30 minutes Potentiometer P1
Override Emergency source outage delay 4 seconds Not adjustable N/A
Generator cool down (unloaded run time) 5 minutes Not adjustable N/A
Description Factory setting Adjustment range Adjusted by
Single or three phase operation Set at factory 1Ø or 3Ø DIP switch S1 – 6
Phase frequency As indicated for application 50Hz or 60Hz DIP switch S1 – 4
Emergency Source frequency pickup 95% of line frequency 47Hz or 57Hz Phase frequency setting
Emergency Source frequency dropout 85% of line frequency 43Hz or 51Hz Phase frequency setting
120v ELTS voltage settings Factory setting Adjustment range Adjusted by
Normal source voltage pickup 108 volts 108 or 114 volts DIP switch S1 – 3
Normal source voltage dropout 102 volts 108, 102, 96, or 84 volts DIP switch S1 – 1, 2
Emergency source voltage pickup 108 volts No adjustment N/A
Emergency source voltage dropout 90 volts No adjustment N/A
277v ELTS voltage settings Factory setting Adjustment range Adjusted by
Normal source voltage pickup 249 volts 249 or 263 volts DIP switch S1 – 3
Normal source voltage dropout 235 volts 249, 235, 222, or 193 volts DIP switch S1 – 1, 2
Emergency source voltage pickup 249 volts No adjustment N/A
Emergency source voltage dropout 208 volts No adjustment N/A
Voltage Adjust (120v and 277v) Factory setting Adjustment range Adjusted by
Low reduces all voltage settings 4.2% High (100%) High – 100% or Low – 95.8% DIP switch S3 – 2
Emergency Lighting Transfer System User Manual 23
Changing ELTS settingsYou adjust ELTS settings on the control panel by opening the cabinet and removing the control panel cover in the ELTS enclosure.
Gaining access to the ELTS control panel1. Disconnect both ELTS power sources. Disconnect Emergency first, then
Normal. If the ELTS was using the Emergency source, you may hear the actuators switch over to Normal.
2. Open the ELTS cabinet and locate the ELTS control panel using Figure 21.
Warning! Opening the ELTS cabinet with power on may result in death or injury from electrical shock.
3. Release the latch on the right side of the control panel cover and lift the cover off to the right. See Figure 22, left.
4. Use Figure 23, below, to locate the desired adjustment component.
Figure 23: Adjustment potentiometer and DIP switch locations5. Use the instructions on the following pages to make the desired changes:
▼Instructions for ELTS Timing settings are on page 24▼Instructions for ELTS Voltage settings are on page 25▼Instructions for ELTS Line settings are on page 26
Figure 21: Control panel
Control panel
Latch
Cover
Figure 22: Removingthe control panel cover
DIP S3 Potentiometer P1Potentiometer P2DIP S2DIP S1
24 Electronic Theatre Controls, Inc.
Changing the Normal source outage delayThe Normal source outage delay is the amount of time the ELTS will tolerate a Normal power voltage fault before starting the switch to Emergency power. It can be set to 1 or 3 seconds using DIP switch S3-1.
1. Locate S3 using Figure 23 on page 23 and set S3-1 to the desired setting.
Changing the Transfer to Emergency and Return to Normal delaysThe Transfer to Emergency delay is the time the ELTS waits before switching to Emergency after the Emergency power voltage and frequency stabilize. You can set the delay from zero to five minutes, using potentiometer P2.
The Return to Normal delay is the time the ELTS waits before switching from Emergency to Normal after Normal power is stabilized. The delay can be set from one second to 30 minutes using potentiometer P1.
Note: To quickly restart an interrupted performance or for testing purposes, you can instantly switch the ELTS back to Normal power with the front panel Local switch or a Remote keyswitch station.
1. Locate potentiometer P1 (Emergency to Normal) or P2 (Normal to Emergency) using Figure 23 on page 23.
2. Turn the potentiometer clockwise to increase the interval or counterclockwise to decrease it. Use the adjustment values marked on the PCB to approximate the desired delay.
Note: Markings are approximate – you may need to test settings with a timing device to achieve exact delay values.
Figure 25: P2 (Transfer to Emergency) and P1 (Return to Normal)
Override Emergency source outage delayThe Override Emergency source outage delay is the time the ELTS will tolerate an Emergency power fault before starting the switching back to Normal power. It is set at the factory to four seconds and cannot be adjusted.
Generator cool down intervalThe Generator cool down interval is the time the ELTS waits before shutting off the Emergency power generator after switching back to Normal power. It is set at the factory to five minutes and cannot be adjusted.
1 second delay – 3 second delay – S3
DIP S3-1 ON1 second delay
•1
•2
•3
•4
•5
•6
•7
•8
ON
Figure 24: Dip Switch S3-1
•1 •1
0
3S
10S
30S1M
2M
3M
4M
5MTIMER
N/E
1S
10M
5M
15M20M
25M
30M
TIMERE/N
P2 P1
Low setting High setting
Return to Normal delay
Transfer to Emergency delay
Emergency Lighting Transfer System User Manual 25
Changing the Voltage Adjust settingVoltage Adjust is set at Low or Norm using DIP switch S3-2. Low reduces all voltage settings by 4.2 percent to compensate for low source voltage.
1. Locate S3-2 using Figure 23 on page 23 and set it to the desired setting.
Table 7: ELTS source voltage settings with Voltage Adjust set to Low
Changing the Normal source Pickup voltageThe Normal source Pickup voltage is the voltage level required before the ELTS will switch from the Emergency source back to Normal power. It is set using DIP switch S1-3.
1. Locate S1-3 using Figure 23 on page 23 and set it to the desired setting.
Changing the Normal source Dropout voltageThe Normal source Dropout voltage is the voltage level where the ELTS will switch from the Normal source to Emergency power. It is set using DIP switches S1-1 and S1-2.
1. Locate S1-1 and S1-2 using Figure 23 on page 23 and set the voltage.
Emergency source Pickup and Emergency source Dropout voltages (not adjustable)The Emergency source Pickup voltage is the lowest voltage level that allows the ELTS to use Emergency instead of Normal power.
The Emergency source Dropout voltage is the lowest voltage level the ELTS can use for Emergency power operation.
Voltage Adjust Norm – Voltage Adjust Low –
120v ELTS voltage settings Factory setting Adjustment range Adjusted byNormal source voltage pickup 103.5 volts 103.5 or 109.2 volts DIP switch S1 – 3Normal source voltage dropout 97.7 volts 103.5, 97.7, 92.0, or 80.5 volts DIP switch S1 – 1, 2Emergency source voltage pickup 103.5 volts No adjustment N/AEmergency source voltage dropout 86.2 volts No adjustment N/A277v ELTS voltage settings Factory setting Adjustment range Adjusted byNormal source voltage pickup 238.5 volts 238.5 or 252.0 volts DIP switch S1 – 3Normal source voltage dropout 225.1 volts 238.5, 225.1, 212.7, or 184.9 volts DIP switch S1 – 1, 2Emergency source voltage pickup 238.5 volts No adjustment N/AEmergency source voltage dropout 199.3 volts No adjustment N/A
120v operation 277v operation
Voltage Adjust Norm 108v 114v 249v 263vVoltage Adjust Low 103.5v 109.2v 238.5v 252v
120v operation 277v operation
Voltage Adjust Norm 108v 102v 96v 84v 249v 235v 222v 193vVoltage Adjust Low 103.5v 97.7v 92v 80.5v 238.5v 255.1v 212.7v 184.9v
S3
DIP S3-2 On,All voltage settingsare at 100 percentof factory settings(Norm setting)
•1
•2
•3
•4
ON
Figure 26: Dip Switch S3-2
•2 •2
S1
DIP S1-1 and S1-2,Normal sourceDropout voltage
•1
•2
•3
•4
•5
•6
ONDIP S1-3, Normalsource Pickupvoltage (shown inOn position)
Figure 27: Dip Switch S1
•3 •3 •3 •3
•1
•2
ON
•1
•2
ON
•1
•2
ON
•1
•2
ON
•1
•2
ON
•1
•2
ON
•1
•2
ON
•1
•2
ON
26 Electronic Theatre Controls, Inc.
Setting ELTS line frequencyThe ELTS can be set for either 50 or 60Hz operation using DIP switch S1-4.
1. Locate S1-4 using Figure 23 on page 23 and set it as desired.
Setting the ELTS for single or three phase voltageThe ELTS can be set for either single or three phase operation using DIP switch S1-6.
Note: The ELTS is shipped with a different internal wiring configuration and power supply for either single or three phase operation. Do not change the phase setting unless directed to do so by an authorized ETC representative.
1. Locate S1-6 using Figure 23 on page 23 and set it as desired.
Emergency source Pickup and Emergency source Dropout frequency settingsThe Emergency source Pickup frequency is the lowest line frequency needed for the ELTS to use the Emergency source to replace Normal power. It is set at the factory to 95 percent of the ELTS phase frequency and cannot be adjusted, but does use the ELTS phase frequency for its 50 or 60Hz reference.
The Emergency source Dropout frequency is the lowest line frequency the ELTS can tolerate when using Emergency power. It is set at the factory at 85 percent of the ELTS phase frequency and cannot be adjusted, but does use the ELTS phase frequency for its 50 or 60Hz reference.
50Hz– 60Hz –
Single Phase– Three Phase–
50Hz ELTS setting 60Hz ELTS setting
Pickup – 47.50Hz Dropout – 42.5Hz Pickup – 57.0Hz Dropout – 51.0Hz
S1
DIP S1-4, ELTSPhase frequency(shown in 60Hz,Off position)
•1
•2
•3
•4
•5
•6
•7
•8
ON
DIP S1-6, ELTS 1Øor 3Ø operation(shown in 1Ø,On position)
Figure 28: Dip Switch S1
•4 •4
•6 •6
Emergency Lighting Transfer System User Manual 27
OperationAutomatic operation
During automatic operation the ELTS system switches back and forth from Normal to Emergency when either power supply is interrupted or restored.
Figure 29: Local control LED indications
Selecting the preferred power source: Normal or EmergencyUsing the local keyswitch on the front of the ELTS cabinet or a Remote keyswitch station installed in your facility, you can select either Normal or Emergency as the preferred power source.
1. Insert the key into the keyswitch and select the desired power source:
▼ To select Normal power, turn the key left. The green NORMALOPERATION LED lights.
▼ To select Emergency power, turn the key right. The red EMERGENCYOPERATION LED lights and the emergency loads go to full. If Emergency power is provided by an engine/generator, there will be a short switching delay as the generator turns on and voltage and frequency stabilize.
2. Release the key. The keyswitch returns to center and the indicator light you selected remains on. The ELTS uses the selected power source. If the selected source’s voltage or frequency drops below the limit, the ELTS will switch to the other source.
3. When the voltage and frequency of the selected source returns to acceptable levels, the ELTS will switch back to it.
Remote StationRemote Keyswitch station operation is identical to the local station. Refer to Selecting the preferred power source: Normal or Emergency for instructions.
Fire alarm or Aux signal switchingIf desired, the ELTS system can be activated by fire alarm or auxiliary circuits. When the ELTS receives the fire alarm or auxiliary circuit activation, it will switch to Emergency power.
Note: If you have selected Emergency as the preferred power with either the Local or Remote keyswitch, the ELTS will not switch power sources after receiving a fire alarm or auxiliary activation.
Operational Current: 200A Max 3 Phase
Electronic Theatre Controls Inc.MODEL ELTS
AUTOMATIC TRANSFER SWITCH FOR EMERGENCY SYSTEMS
ISSUE NO. 934
POWERPOWER
UL1008 Listed
Operational Voltage: 120/208v (3p+N+ )Frequency: 50/60Hz.Short-circuit current: 10,000 AIC
Electronic Theatre Controls Inc.Middleton, WI Made in USA
©®®
GENERATOR
EMERGENCY POWER
FIRE ALARM
AUXILIARY
NORMAL POWER
TRANSFER SIGNAL
START
TRANSFER SIGNAL
STABLE
STABLE
EMERGENCYNORMAL AUTO
EMERGENCYOPERATION
NORMALOPERATION
Keyswitch selects ELTS preference between Normal
Lit if Normal power is acceptable
Lights when ELTS sends a Generator start signal
Lit if Emergency power is acceptable
Lights when ELTS receives a fire alarm activation
Lights when ELTS receives a auxiliary activation
Lights when Normal power is used
Lights when Emergency power is used
28 Electronic Theatre Controls, Inc.
Switching power sources manuallyIf you need to switch the ELTS from one power source to another when the electronic switching circuits will not function (for example, if you needed to use either Normal or Emergency power, but the voltage or frequency was below the limit) you can set the transfer switch assemblies manually.
1. Disconnect both Normal and Emergency power.
Warning! Turn off Normal and Emergency power to the ELTS at the main circuit breaker. Opening the cabinet with power applied may result in death or injury from electrical shock.
2. Open the ELTS cabinet.
3. Disconnect the two connectors on the left side of the control panel.
Figure 30: Removing the control panel connector
Warning! Operating switch assemblies manually without disconnecting the control panel connector may result in the assemblies switching back automatically, causing severe hand injuries.
▼ To switch from Normal to Emergency power: Turn the manual operation handle on the bottom of each transfer switch assembly 90° clockwise. E (Emergency) should be visible just above the handle.
▼ To switch from Emergency to Normal: Turn the manual operation handle on the bottom of each transfer switch assembly 90° counter-clockwise. N (normal) should be visible just above the handle.
4. Close the cabinet door and restore power to the ELTS.
Note: Do not plug the control panel connectors back in until you want the ELTS to resume automatic operation.
Squeeze the release tabs on the sides of each plug together and pull it out. Do not pull on the plug wires.
Both plugs should be removed for manual operation Plugs can be
disconnected with the Control Panel cover in place
Emergency Lighting Transfer System User Manual 29
Restoring automatic operation1. Disconnect Normal and Emergency power.
Warning! Turn off Normal and Emergency power to the ELTS at the main circuit breaker.Opening the cabinet with power applied may result in death or injury from electrical shock.
2. Open the ELTS cabinet.
3. Reconnect the two connectors on the left side of the control panel (See Figure 30 on page 28).
4. Close the cabinet door and restore power to the ELTS.
30 Electronic Theatre Controls, Inc.
ServicePreventive maintenance
Regular testing and simple maintenance of your ELTS system will result in long service life and reliable performance. To assist in documenting your test and maintenance schedule, a blank Test and Maintenance Log is included on page 38. We suggest you post a copy near your ELTS cabinet.
Warning! Turn off Normal and Emergency power to the ELTS at the main circuit breaker. Opening the cabinet with power applied exposes you to death or injury from electrical shock.
Warning! Rotating the transfer switch assemblies manually with Normal or Emergency power applied may result in the assemblies switching automatically, causing severe hand injuries.
Monthly testing1. Manually test the ELTS’s transfer function at the local keyswitch on the
front of ELTS cabinet. See Switch function on page 20 for keyswitch instructions and indications.
2. Note the test results in the test and maintenance log.
Quarterly testing and maintenance1. Manually test the ELTS’s transfer function at the local keyswitch on the
front of ELTS cabinet. See Switch function on page 20 for keyswitch instructions and indications.
2. Test the ELTS Auto transfer function. See Automatic function on page 21 for automatic transfer instructions and indications.
3. Visually inspect the ELTS cabinet for loose wires or component damage.
4. Note the test results in the test and maintenance log.
Annual testing and maintenance1. Manually test the ELTS’s transfer function at the local keyswitch on the
front of ELTS cabinet. See Switch function on page 20 for keyswitch instructions and indications.
2. Test the ELTS Auto transfer function. See Automatic function on page 21 for automatic transfer instructions and indications.
3. Visually inspect the ELTS cabinet for loose wires or component damage.
4. Retighten ELTS phase, neutral and ground lugs using values in Table 1: Emergency power lug wire sizes and connection torques on page 12.
5. Vacuum the ELTS cabinet to remove dust and debris that may have collected.
6. Note the test results in the test and maintenance log.
Emergency Lighting Transfer System User Manual 31
TroubleshootingIf you have trouble with an installed ELTS system, you can contact ETC Technical Service at 800/775-4382.
Warning! Trouble shooting usually involves opening the ELTS cabinet and metering voltages. Opening the ELTS cabinet with power applied exposes you to death or injury from electrical shock. Use extreme caution during all troubleshooting activities.
Emergency or Normal Power Stable LED does not turn on properlyDuring normal operation, either the Normal Power Stable or Emergency Power Stable LED should be lighted. If one or the other does not light, the problem may be with the LED, Normal or Emergency sensing wiring, or Normal or Emergency power.
1. Switch between Normal and Emergency power on the ELTS control panel keyswitch and observe the results:
▼ The ELTS switches between Normal and Emergency1. Check for loose LED wire connections or defective LEDs.
2. Make sure the Control Panel connector is properly seated.
▼ The ELTS does not switch between Normal and Emergency. 1. Go to the next ELTS troubleshooting section.
The ELTS will not switch between Normal and EmergencyIf the system will not switch from Emergency power1. Check for tripped Normal power sensing wire circuit breakers.
2. If the circuit breakers are not tripped, meter Normal power using the procedures in Voltage checkout on page 19.
If the system will not switch from Normal power1. Meter Emergency power using the procedures in Voltage checkout on
page 19.
2. If no fire alarm or auxiliary circuits are connected to the ELTS, make sure the terminal jumpers are in place.
3. If fire alarm or auxiliary circuits are connected, meter between the wires to be certain the circuit is closed. An open circuit switches the ELTS to Emergency power.
If the system does not seem to function in either Normal or Emergency power mode1. Make sure the control panel connector is properly seated.
2. Check other wire connections for loose terminals or broken wires.
3. Use the procedures in Checking transfer switch operation manually on page 19 to test the switching mechanism for mechanical problems.
32 Electronic Theatre Controls, Inc.
Remote stations cannot switch the ELTS 1. Switch between Normal and Emergency power on the ELTS control panel
keyswitch and observe the results.
If the ELTS does not switch locallyFollow the instructions in The ELTS will not switch between Normal and Emergency on page 31.
If the ELTS switches locallyTry switching the ELTS from other Remote stations, if multiple stations have been installed
1. If the other stations function, check the wire terminal connections on the problem station. See Installing Remote stations (optional) on page 11 for station connection requirements.
2. If the other stations do not function, or there is only one Remote station installed.
3. Check the wire connections on the Remote station terminal block.
4. Check the Remote station fuse in the ELTS cabinet
Figure 31: Locating the Remote station fuse5. Inspect the wiring between the ELTS cabinet and the stations for defects.
See Connecting Remote stations to the ELTS on page 17 for ELTS connection requirements.
Some ELTS circuits do not switch when the system changes sourcesPartial switching of ELTS circuits indicates one or more transfer switch assemblies, or the wiring to them, is defective.
1. Use the procedures in Checking transfer switch operation manually on page 19 to locate any transfer switch assemblies that have not switched and to manually test their function.
2. If an assembly cannot be switched manually, check for something that could be physically obstructing it. If you find something, remove it and manually test the switch again. If you cannot find and remove the cause of the switching failure, the assembly is defective and must be replaced.
3. If the assembly switches manually, check for loose wire connections to the assembly and look for damaged wires between the assembly and the control panel. Repair any wire problems you find and test the system.
SR3BSR3BSR3B SR3BSR3B SR3B
Remove this cover on the left side of the Isolation relays to check the Remote station fuse
Emergency Lighting Transfer System User Manual 33
Appendix A: ELTS specificationsDimensions
Small cabinet: ELTS 450, ELTS 620, ELTS122036" x 30" x 9" Large cabinet: ELTS 850, ELTS 1820, ELTS 242054" x 30" x 9"
WeightELTS 450, ELTS 620, ELTS1220 – 305 poundsELTS 850, ELTS 1820, ELTS 2420 – 370 pounds
ElectricalOperational voltage
120/240V single phase 250 amp maximum120/208V three phase 175 amp maximum277/480V three phase 175 amp maximumFrequency: 50 – 60HzShort circuit current: 10 kA @ 120/240V
100,000 kA @ 277/480V(5 kA with 50 amp circuit breakers)
Electrical Compliance▼ ANSI/UL 1008 – Listed, Automatic Transfer Switches▼ ANSI/NFPA 110 – Emergency and Standby Power Systems▼ ANSI/NFPA 70 – National Electric Code
Article 701 – Legally Required Standby SystemsArticle 700 – Emergency SystemsArticle 540 –11(c) – Motion Picture HousesArticle 520 – 7 – Theatres and Similar LocationsArticle 518 – 3(c) – Places of Assembly
▼ City of New York, Advisory board, Electrical Department▼ OSHA▼ Department of Defense
EnvironmentAmbient temperature between 32° F and 104°F (0°C and 40°C)Humidity between 30 and 95 percent (non-condensing)Altitude below 6500 feet (2000 meters)
34 Electronic Theatre Controls, Inc.
Appendix B: Wire connection schematics and diagramsWire connection schematics and diagrams are included to help you understand the internal wiring of your ELTS system.
Figure 32: ELTS cabinet wire connection location diagram
TRANSFER SWITCH12 POLE
SOURCENORMAL
TRANSFER SWITCH12 POLE
NORMALSOURCE
TRANSFER SWITCH12 POLE
NORMALSOURCE
TRANSFER SWITCH12 POLE
NORMALSOURCE
#12
WIR
E
#12
WIR
E#1
2 W
IRE
#12
WIR
E
NCBA
G
INCOMINGPOWER
1 2 3 4 5313131 62 2 24 44
123456789
321
123
123
654321
123456
3
3
456
456
456
P1-PLUG
J1
J2
P2-PLUG
GROUP 1CONTROL PANEL
TB1
J3
P3-PLUG
123456789
10111213141516
P3
910
8
67
5
34
21
P2
89
7
56
4
23
1
1011
1918
1617
15
1314
12
P1
789
101112
10 89 7 6 5 24 3 1
GND LUG
EL1 NL1EN1 NN1EL2 NL2EN2 NN2EL3 NL3EN3 NN3EL4 NL4EN4 NN4EL5 NL5EN5 NN5EL6 NL6EN6 NN6
LN3
LN1LL1
LN2LL2
LL3
LN5
LN4LL4
LL5
LN6LL6
NN3EN3
EL2
EL1EN1
EL3EN2
NN1NL1
NN2NL2
NL3
EL6
EL5EN4
EN5
EN6
EL4
NN5
NN4NL4
NL5
NN6NL6
EN3 NN3
EN2EL3
EN1EL1
EL2
NL1NN1NL2NN2NL3
EL4
EN6
EN5
EN4EL5
EL6NN5
NN4NL4
NL5
NN6NL6
NN3EN3
EL2
EL1EN1
EL3EN2
NN1NL1
NN2NL2
NL3
EL6
EL5EN4
EN5
EN6
EL4
NN5
NN4NL4
NL5
NN6NL6TS616
TS515
TS414
TS313
TS212
TS111
TS11222
TS11121
TS11020
TS919
TS818
TS717
TS1836
TS1735
TS1634
TS1533
TS1432
TS1331
TS2442
TS2341
TS2240
TS2139
TS2038
TS1937
NTB NTB
NTBNTB
TB1TB2TB3
11 10
NTB
NTB
30 132912 3231 29 1131 12 323010 13
LL1
LL2LN1
LN2
LL6
LN4
LN3LL3
LL4
LL5LN5
LN6
TB3TB2TB1
NTB
NTB
2931 12 11 10 3230 13
LL5
LL2
LL1LN1
LN4
LN3LL3
LL4
LN2
LN6
LN5LL6
TB2TB3
TB1
2931 12 11 10 3230 13
LL5
LL2
LL1LN1
LN4
LN3LL3
LL4
LN2
LN6
LN5LL6
TB2TB3
TB1
NTBNTB
NTBNTB
TB1 1TB2 1TB3 1
T2T2T2 T3
TB3 T1
T3T3
TB2 T1TB1 T1
T4TB3 T2
T4T4
TB2 T2TB1 T2
TB3 T3TB2 T3TB1 T3
TS12
1TS
291
TS1B
T2TS
101
TS30
1TS
1AT2
T2 T2
TS1A
T1TS
29T1
TS2B
T3TS
1BT1
TS30
T1TS
2AT3
T3 T3
TS2A
T2TS
29T2
TS3B
T4TS
2BT2
TS30
T2TS
3AT4
TS3A
T3TS
29T3
TS3B
T3TS
30T3
TS11
1
T4 T4
NTB
NTB
NTB NTB
NTB
NTB
NTB
NTB
NTBNTB
NTB
NTB
T3 T4 T4T4
NT2
NT2
NT2
T4T4T4T3 T3T3
NT1
NT2
NT2
NT2
NT1
NT1
NT1
31A
11
41 42393633 T3 T3
C19
C22
NT1
NT1
B21
C16
C13
384037 353234
B18
B15
B12
A20
A17
A14
A1
C1
12
12
TB
12
34
56
78
910
1112
1314
1516
1718
19
89
10
21
45
76
3
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
31
79
56
108
42
111213141516
POWERSUPPLY
33
34
71
72
43
44
81
82TR
A1
A2
13
14
51
52
23
24
61
62
1 7018 5116 7015 52G2 1G3 129 5228 52
TB1T1TB2T1TB3T1
TS11T4TS29T1TS30T1TS10T1TS12T1
661
260
EC1
EA1
NC
1N
A1
51 51 51 51
2464
2662
18 1NC 49
17 70NB 1EC 49
NA49
EA49
19702070EA1
2565666
151291281
1951
2051
11
1751
EC1
EA1
NA
1
NC
116
1
T41
EA 49EA 51
EC 49
ATB
CTB
70
70
NA 49
NB 51
NC 49
G1 65
G2 1
G3 1
65
65
70
70
R1 60R2 68R3 69R4 66R5 66
F1 63F2 49
A1 64A2
F21
R1 130 66
TS31T1TS32T1
1
13579
6
108
42
1211
1513
1614
T110T210 68T310 69T47 49T55 65T66 63T77 64
P59P78P93P114
P68P89
P104
R1 67
2161
461
TS31
T1T3
TS31
1T2
TS32
T1T3
TS32
1T2
TS31
T2T4
TS31
T3
TS32
T2T4
TS32
T3
J JJ
STATION (RC)REMOTE CONTROL
TO CUSTOMER
FACTORY JUMPERREMOVE
AS REQUIRED
TO CUSTOMERFIRE ALARM CNTRL.
STATION (FA)
TO CUSTOMERAUX. STATION
(AS)
RIBBONCABLECONNECTION
TO ENGINEGENERATOR
CONTROL
TO CUSTOMER"NORMAL"
MAIN PANEL
TO LAMPLOADS
RIBBONCABLECONNECTION
LOADSTO LAMP
TO LAMPLOADS
TO LAMPLOADS
6 3 5 2 4 1
B 9 8 7 A
6 3 5 2 4 1
B 9 8 7 A
6 3 5 2 4 1
B 9 8 7 A
6 3 5 2 4 1
B 9 8 7 A
6 3 5 2 4 1
B 9 8 7 A
6 3 5 2 4 1
B 9 8 7 A D1
X2
X11
X3
D2
X4
X12
X5
D3
X6
X13
X724VDC
FUSECR1 CR2 CR3 CR4 NRX
249
R11
65
1468
450
662
1361
1167
663
F11
2364
662
664
2150
1261
2263
69
2262
2450
G11
G31
A11
2363
663
665
R160
G21
2552
67
1162
T21
1461
T31
1262
R165
R21
R31
TSX
R41
R51
301
665
652
T61
T71
T51
2650
61
49
664
66 1
1262
1362
Emergency Lighting Transfer System User Manual 35
Figure 33: ELTS door panel and breaker bracket wire connection schematics
Figure 34: Transfer switch assembly control wire connections schematic
#12 WIRE
#12 WIRE
#12 WIRE
#12 WIRE
A
TB
B
TB
C
TB
A
TB
B
TB
C
TB
A
TB
B
TB
C
TB
A
TB
B
TB
C
TB
A
TB
B
TB
C
TB
A
TB
B
TB
C
TB
A
TB
B
TB
C
TB
A
TB
B
TB
C
TB
TS1
T1
TS2
T1
TS3
T1
TS4
T1
TS5
T1
TS6
T1
TS7
T2
TS8
T2
TS9
T2
TS10
T2
TS11
T2
TS12
T2
TS13
T3
TS14
T3
TS15
T3
TS16
T3
TS17
T3
TS18
T3
TS19
T4
TS20
T4
TS21
T4
TS22
T4
TS23
T4
TS24
T4
CB15CB14CB13 CB24CB20CB19CB18CB16 CB17 CB23CB21 CB22
CB1 CB2 CB3 CB4 CB5 CB6 CB7 CB8 CB9 CB10 CB11 CB12
Breaker bracket schematicDoor panel schematic
KEYSWITCH CIRCUIT
T7 1
T6 4
T8 1
T6 13
T10 1
T9 6
T11 1
T9 75
T12 1
T9 16
T5 1
T1 109
T4 1
T1 8
T2 1
T3 1
T118
NORMAL POWERSTABLE
G
EMERGENCY POWERSTABLE
G
GENERATORSTART
G
FIRE ALARMTRANSFER SIGNAL
R
AUXILIARYTRANSFER SIGNAL
R
EMERGENCYOPERATION
R
NORMALOPERATION
G
ENA
29
3032
3111
1012
1329
30
31
32
11
1012
13
TB1 TB2 TB3
T2T1
TB3TB2TB1
T3
TB3TB2TB1
13
12 10
11 31
32 30
29
T4
TB3TB2TB1
13
12 10
11 31
32 30
29
SEE CONTROL SCHEMATIC DIAGRAM
FACTORY CONNECTIONS
1
2
3
4
5
6
7
TB1
TB2
TB3
TS11
TS29
TS30
TS10
TO CONTROL MODULE
TERMINAL BLOCK8 TS12
TS1A
TS1B TS2B
TS2A
TS3B
TS3A
TB1
TB2
TB3
TS11
TS12
TS10
TS30
TS29
36 Electronic Theatre Controls, Inc.
Appendix C: Transfer switch control system schematics208V AC CKT.
FROM NORMAL MAIN PANEL
208V AC CKT.FROM EMERGENCY BRANCH PANEL
-+++
B A
INTERNAL JUMPERINTERNAL JUMPER
B A
F2
A2
T10
D1
D3
D2
NC
ECEA
NA
NB
G1
G3
G2
J1-10
J2-1
J2-10
J2-9
J2-3
J2-2
J2-8
J1-8
J1-2
J1-15
J1-1
NB SENSE
TS-NC
TS-COM
TS-NO
NA SENSE
LOCAL CONTROL STATION (LC)
LOCAL DIAGNOSTIC PANEL (LD)
AUX ALARM STATION (AS)
A1
A2
F2
F1
FIRE ALARM STATION (FA)
FROM NORMAL MAIN PANEL
T3
NB
G1
G3
G2
17
18
NA
( 208VAC INPUT )
DUAL INPUT POWER SUPPLY
( 24VDC OUTPUT )
X3X11
X2
X6 X7
X4 X5
X12
X13
A1
F1
T11
T12
A1B A
B A
F1
EA
EC
19
EC SENSE
EA SENSEJ1-7
J1-17
A2 A1J1-13
J1-12
1
TOENGINE-GENERATOR
CONTROL
TS11
TB3
TB2
TS12
TS10
TS30
TS29
TB1
REMOTE CONTROLSTATION FAULTFUSE
TRANSFERMANUAL RELAY
FIRE ALARMISOLATION RELAY
DIMMER FAILUREISOLATION RELAY
RETRANSFERMANUAL RELAY
NC NC SENSEJ1-4
5A
X10
X1
PS
EXPLANATION:
14
15
16
N A E
(KEY OPER)SS
J3-8
J3-7
J3-6
J3-5
J3-9
J3-10
+24VDC
E-OK
N-OK
TB1-15
TEST-NC
BYPASSDELAY
MAN-X
TS-NORM
TEST-EMG
TEST-NCTB1-4
GNDTB1-5
CP
TB1-12
TB1-7GNDTB1-13
TB1-6
ET-NCTB1-8
GNDTB1-11
INHIBITTB1-10
--
E
N R2
R1
R3
R4
R5REMOTE CONTROL STATION (RC)
FACTORY JUMPERSREMOVE AS REQUIRED
T2 T2
T1T1
T3
TR61
62
TR52
51TR
1413
N
E
R5R5
R3R3
R4R4
R1R1
R2R2
AUX
FIRE
GEN
NORM
EMERG
AUXILIARYTRANSFER SIGNAL
FIRE ALARMTRANSFER SIGNAL
GENERATORSTART
EMERGENCY POWERSTABLE
NORMAL POWERSTABLE
TB1-9
B A
+24VJ3-11
T9
EA
20
22 23 24
21
11 12 13
25
PL5
PL6
PL7
PL4
PL3
G
R
PL1
PL2
NORM
EMERG
26
T1
T3
T2
T4A
T4
T5A
T5
T6
T7
T8
T9
T10
T11
T4A
T4
T5A
T5
T6
T7
T8
T12
T4A
T4
T5A
T5
T6
T7
T8
T9
T10
T11
T12
FACTORYCONNECTION
SWITCH(ES)SEE
TRANSFERSWITCH
SCHEMATICDIAGRAM
TS31
TS32B A
28
29
30
– CONTROL RELAY
– CONTROL PANEL
– POWER SUPPLY
– TRANSFER RELAY
– INDICATING LIGHT
– SELECTOR SWITCH, KEY OPERATED
– TRANSFER SWITCH TERMINAL CONNECTION
– TERMINAL BLOCK
– CONNECTOR PLUG TO CONTROL PANEL
CR1-CR4,NRX, TSX
CP
PS
TR
PL1-PL7
SS
3 4
9
21
7 5 1086
CR2
9 6
CR1
3 9CR2
CR1
TR
34 33
ER
SE
SE
NR
NR
CR31 7
CR41 7
CR4
CR3
ER SETR
R
G
CR4
8 5
CR2
7 1
CR3
5 8
TR
24 23
G
G
G
R
R
NRX
NRX
2 8
NRX
5 8
TSX3 9TSX
6 9
TSX
CR1
7 1
NRX6 3
ENGINE-GEN.START-RUNCOMMAND
CLOSED CONTACTNORMALLY
NORMALLYOPEN CONTACTS
x-x
JMPR
R1JMPR
2 6 4 3
Emergency Lighting Transfer System User Manual 37
Appendix D: Transfer switch load switching schematic
- +
NORMAL SOURCECIRCUIT 4
EMERG. SOURCE
NORMAL SOURCENL1
EMERG. SOURCE
20ACB1
L
TS1
ØA
CIRCUIT 1 CIRCUIT 2 CIRCUIT 3
12 POLE UNIT
N
E
LOADCIRCUIT 2
N
E
N
NN1
E
L
LL1
CIRCUIT 1
LN1
LOAD
TS2
NORMAL SOURCENL2
N
E
L
NN2
L
20ACB2
LL2
EMERG. SOURCE
N ØB N
NORMAL SOURCE
CIRCUIT 3
LL3
N
E
NL3
L
20ACB3
LN2
TS3
NN3
N
E
L
NL4
N
E
L
LN3
LOAD
TS4
20ACB4
EMERG. SOURCE
ØC N ØA
CIRCUIT 5 CIRCUIT 6
L
EMERG. SOURCE
NORMAL SOURCE
20ACB5
NN4
N
E
L
NL5
N
E
L
LN4
CIRCUIT 4
LL4
LOAD
TS5
NN5
L
N
E
LOADCIRCUIT 5
LL5 LN5
TS6
EMERG. SOURCE
N ØB N
CIRCUIT 6
LN6
NORMAL SOURCENL6
N
E
NN6
N
L
E
20ACB6
LL6
LOAD
NØC
29
11
10
30
TS1
TS1
TS1
32
12
13
31
#12 WIRE
TB3TB1 TB2
9
872
71
B
ATS1
69
70
CKT
AC2
COIL
-
AC1REC+
7
6
#12 #12 #12#12#12#12
CIRCUIT 2CIRCUIT 1 CIRCUIT 3 CIRCUIT 4 CIRCUIT 5 CIRCUIT 6
NORMAL SOURCECIRCUIT 10
EMERG. SOURCE
NORMAL SOURCENL7
EMERG. SOURCE
20ACB7
L
TS7
ØA
CIRCUIT 7 CIRCUIT 8 CIRCUIT 9
12 POLE UNIT
N
E
LOADCIRCUIT 8
N
E
N
NN7
E
L
LL7
CIRCUIT 7
LN7
LOAD
TS8
NORMAL SOURCENL8
N
E
L
NN8
L
20ACB8
LL8
EMERG. SOURCE
N ØB N
NORMAL SOURCE
CIRCUIT 9
LL9
N
E
NL9
L
20ACB9
LN8
TS9
NN9
N
E
L
NL10
N
E
L
LN9
LOAD
TS10
20ACB10
EMERG. SOURCE
ØC N ØA
CIRCUIT 11 CIRCUIT 12
L
EMERG. SOURCE
NORMAL SOURCE
20ACB11
NN10
N
E
L
NL11
N
E
L
LN10
CIRCUIT 10
LL10
LOAD
TS11
NN11
L
N
E
LOADCIRCUIT 11
LL11 LN11
TS12
EMERG. SOURCE
N ØB N
CIRCUIT 12
LN12
NORMAL SOURCENL12
N
E
NN12
N
L
E
20ACB12
LL12
LOAD
NØC
29
11
10
30
TS2
TS2
TS2
32
12
13
31
#12 WIRE
TB3TB1 TB2
9
872
71
B
ATS1
69
70
CKT
AC2
COIL
-
AC1REC+
7
6
#12 #12 #12#12#12#12
CIRCUIT 8CIRCUIT 7 CIRCUIT 9 CIRCUIT 10 CIRCUIT 11 CIRCUIT 12
NORMAL SOURCECIRCUIT 15
EMERG. SOURCE
NORMAL SOURCENL13
EMERG. SOURCE
20ACB13
L
TS13
ØA
CIRCUIT 13 CIRCUIT 14 CIRCUIT 14
12 POLE UNIT
N
E
LOADCIRCUIT 14
N
E
N
NN13
E
L
LL13
CIRCUIT 13
LN13
LOAD
TS14
NORMAL SOURCENL14
N
E
L
NN14
L
20ACB14
LL14
EMERG. SOURCE
N ØB N
NORMAL SOURCE
CIRCUIT 15
LL15
N
E
NL14
L
20ACB15
LN14
TS15
NN14
N
E
L
NL15
N
E
L
LN15
LOAD
TS15
20ACB15
EMERG. SOURCE
ØC N ØA
CIRCUIT 16 CIRCUIT 17
L
EMERG. SOURCE
NORMAL SOURCE
20ACB16
NN15
N
E
L
NL16
N
E
L
LN16
CIRCUIT 16
LL16
LOAD
TS16
NN16
L
N
E
LOADCIRCUIT 17
LL17 LN17
TS17
EMERG. SOURCE
N ØB N
CIRCUIT 18
LN18
NORMAL SOURCENL17
N
E
NN17
N
L
E
20ACB17
LL18
LOAD
NØC
29
11
10
30
TS3
TS3
TS3
32
12
13
31
#12 WIRE
TB3TB1 TB2
9
872
71
B
ATS1
69
70
CKT
AC2
COIL
-
AC1REC+
7
6
#12 #12 #12#12#12#12
CIRCUIT 14CIRCUIT 13 CIRCUIT 15 CIRCUIT 15 CIRCUIT 16 CIRCUIT 17
NORMAL SOURCECIRCUIT 22
EMERG. SOURCE
NORMAL SOURCENL19
EMERG. SOURCE
20ACB19
L
TS19
ØA
CIRCUIT 19 CIRCUIT 20 CIRCUIT 21
12 POLE UNIT
N
E
LOADCIRCUIT 20
N
E
N
NN19
E
L
LL19
CIRCUIT 19
LN19
LOAD
TS20
NORMAL SOURCENL20
N
E
L
NN20
L
20ACB20
LL20
EMERG. SOURCE
N ØB N
NORMAL SOURCE
CIRCUIT 21
LL21
N
E
NL21
L
20ACB21
LN20
TS21
NN21
N
E
L
NL22
N
E
L
LN21
LOAD
TS22
20ACB22
EMERG. SOURCE
ØC N ØA
CIRCUIT 23 CIRCUIT 24
L
EMERG. SOURCE
NORMAL SOURCE
20ACB23
NN22
N
E
L
NL23
N
E
L
LN22
CIRCUIT 22
LL22
LOAD
TS23
NN23
L
N
E
LOADCIRCUIT 23
LL23 LN23
TS24
EMERG. SOURCE
N ØB N
CIRCUIT 24
LN24
NORMAL SOURCENL24
N
E
NN24
N
L
E
20ACB24
LL24
LOAD
NØC
29
11
10
30
TS4
TS41
TS4
32
12
13
31
#12 WIRE
TB3TB1 TB2
9
872
71
B
ATS1
69
70
CKT
AC2
COIL
-
AC1REC+
7
6
#12 #12 #12#12#12#12
CIRCUIT 20CIRCUIT 19 CIRCUIT 21 CIRCUIT 22 CIRCUIT 23 CIRCUIT 24
38 Electronic Theatre Controls, Inc.
Appendix E: Test and Maintenance LogDate installed ___________________________________________
System address _________________________________________
________________________________________________________
Service contact __________________________________________
Date Inspected by Manual transfer Automatic transfer Visual inspection Vacuumed
Emergency Lighting Transfer System User Manual 39
Appendix F: GlossaryDimmed loads: A light or other fixture that operates using varying voltage from
a power control device like a dimmer rack.
Dimmer: A device that varies operating voltages in response to signals from control devices.
Dimmer rack: An enclosure for multiple dimmers. Racks distribute source power, provide cooling and tamper protection.
ELTS: The Emergency Lighting Transfer System. It switches designated loads to an Emergency power source when a Normal power fault is detected.
Emergency source: A generator or other power supply that is not connected or dependent on normal facility power.
Normal/Emergency load: Lighting or other fixtures that may use the Normal source, but are also connected to an Emergency power source through the ELTS.
Normal source: The main or standard power supply for a facility.
Normal load: Lighting or other fixtures that depend on the Normal source for operating power.
Remote station: An extension of the ELTS front panel control to other locations in the facility.
Sense wires: Wires carrying voltage and frequency information from the Normal source to the ELTS control panel.
Americas 3030 Laura Lane, P.O. Box 620979, Middleton, Wisconsin 53562-0979 USA Tel: +608 831 4116 +800 688 4116 Fax: +608 836 1736 +800 555 8912Europe Unit 5, Victoria Industrial Estate, Victoria Road, London W3 6UU, UK Tel: +44 (0)20 8896 1000 Fax: +44 (0)20 8896 2000Asia Room 605-606, Tower III Enterprise Square, 9 Sheung Yuet Road, Kowloon Bay, Kowloon, Hong Kong Tel: +852 2799 1220 Fax: +852 2799 9325Web: www.etcconnect.com Email: (US) [email protected] (UK) [email protected] (Asia) [email protected]: [email protected] Toll free: 800 775 4382 Comments about this document: [email protected] © 2003 Electronic Theatre Controls, Inc. All Rights Reserved. Product information and specifications subject to change.1093M1102 Rev C Released 01/2003