engine ga governing gns2500 series system ...gns2500 series generator set controller e ngine g...
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GNS2500 SeriesGenerator Set Controller
ENGINE
GOVERNING
SYSTEM
Governors America Corp. 720 Silver Street Agawam, MA 01001phone: 413.786.5600 fax: 413.789.7736
1
GAC’s Generators Set Controller Series (GNS2500 Series) is a family of high-ly-flexible, full authority, generator set controllers for AMF applications. The GNS2500 Series, designed for both electronically and mechanically con-trolled engines, is ruggedly constructed with simple-to-use microprocessor technology.
For detailed descriptions of all features, functions, setup, and operation of the GNS2500 Series; please consult the GNS Product Users Guide. Config-uring the GNS2500 Series requires use of GAC’s SmartVU software. Both the GNS Product Users Guide and GAC’s SmartVU are available for down-load at www.Governors-America.com.
Models Covered in this Publication
Model DescriptionOperating
TemperatureMounting Diagram
Wiring Diagram
Hardware Included Hardware Needed Manual Needed*Software Needed
SmartVUTM*
GNS2502 GNS2502E AMF Genset Control -20˚C to +85˚C DIagraM 1. DIagraM 4.
(4) Flat Washers, Split Washers, Nuts
none required PUG4123 SF60-0003
GNS2504 GNS2504E AMF Genset Control -40˚C to +85˚C DIagraM 1. DIagraM 4.
(4) Flat Washers, Split Washers, Nuts
none required PUG4123 SF60-0003
GNS2502D GNS2502DE Remote Display -20˚C to +85˚C DIagraM 1. DIagraM 5. & 6.
(4) Flat Washers, Split Washers, Nuts
none required PUG4123 SF60-0003
GNS2504D GNS2504DE Remote Display -40˚C to +85˚C DIagraM 1. DIagraM 5. & 6.
(4) Flat Washers, Split Washers, Nuts
none required PUG4123 SF60-0003
GNS2504B GNS2504BE
AMF Genset Control, No Display
-40˚C to +85˚C DIagraM 2. or 3. DIagraM 4. (2) Lower Mounting
Spring Loaded DIN rail Clips
(2) M5 Screws, Flat Washers, Split
Washers, Nuts, optional
PUG4123 SF60-0003
This bulletin is not intended to replace the Product User Guide. Refer to the GNS2500 Series’ PUg4123 for complete product overview available for download at www.Governors-America.com.
Please read the following instructions and visually inspect this product for damage from shipping before installing. It is your responsibility to have a quali-fied person install this unit and make sure it conforms to local codes.
FRONT PANEl MOUNTING
The front panel mount versions of the GNS2500 Series (GNS2502, GNS2504, GNS2502E, GNS2504E) and remote GNS2500 Series (GNS2502D, GNS2504D, GNS2502DE, GNS2504DE) displays should be mounted in a location that is protected from the elements and with adequate security to prevent unauthor-ized access (if desired). See (TaBLE 1.) for hardware needed for installation. To mount the controller to the panel, cut a hole 6.890” [175.0 mm] x 4.450” [113.0 mm] and drill 4 (Ø 0.227” / 0.232” [Ø 5.8 mm / 5.9 mm] holes for mounting screws. (see DIAGRAM 1.) Place the unit in front of the panel aligning the 4 mounted screws on the back of the unit with the pre-drilled holes. Secure the module in place with the mounting hardware provided.
TaBLE 1.
2X 0.122” [3.1mm]
4X Ø 0.227” / 0.232” [Ø 5.8mm / 5.9mm]
4.450” [113.0mm]
2X 0.377” [9.6mm]
6.890” [175.0mm]
DIagraM 1.
ISO 9001CERTIFIED
OVERNORS
MERICA
ORP.CAG
™
PIB4127 C
This document is subject to change without notice. Caution: None of GAC products are flight certified controls including this item.
2
GNS2504B, GNS2504BE Mounting – DIN Mount EN 500022 BS 5584 Standard [DIN46277-3-NFC63015] DIN 3To mount the GNS2504B, GNS2504BE to the DIN rail, clip the 4 upper mounting clips on the back side of the unit on the top of the DIN rail. Secure the unit to the bottom of the DIN rail with the lower mounting spring loaded DIN rail mounted clips. (see DIagraM 2.)
BACK PANEl MOUNTING
The back panel mount version of the GNS2500 Series (GNS2504B, GNS2504BE) is designed to be mounted within the control box of the genset. The GNS2504B, GNS2504BE can be mounted in either of two ways, DIN rail or direct mounted. See (TaBLE 1.) for hardware needed for installation. Operator access to this device is not required.
GNS2504B, GNS2504BE - Direct MountingTo mount the GNS2504B, GNS2504BE to the panel, drill 2 ( Ø 0.227” / 0.232” [5.8 mm / 5.9 mm drill size]) holes for mounting screws. Align the controller with the pre-drilled holes. Secure the module in place with (2) M5 screws. (see DIagraM 3.)
DIagraM 2. (4) Upper Mounted Clip
1.391” [35mm]
Spring Loaded DIN Rail Clips
DIagraM 3.
BINARY INPUTS
-+ D+
BATTERY8-32 VDC
7654321
LB178-2
BO3BO1C98
MAGP/UN BO2
RELAYSBO4
GCA B
GENERATERCURRENT
LB178-1
CANL S H
RS232/485
OUTPUTSBINARY C
N 89 6 57 CGENERATOR VOLTAGEANALOG INPUTS
- +3
- +4
+-- +2 1 N AB
7.6227”
[193.6mm]
2X Ø 0.227” / 0.232” [Ø 5.8mm / 5.9mm]
CMAINS VOLTAGE
N AB
3
BEFORE BEGINNING INSTAllATION Disconnect all electrical power to the machine. Make sure the machine cannot operate during installation. Follow all safety warnings of the machine manufacturer. Read and follow instructions carefully.
DIagraM 4. Basic Wiring Diagram
-12
/24V
DC
B
atte
ry
ALT
ER
NAT
OR
2
+
10 a
mp
Fuse
ESTOP
FAC
TOR
Y IN
STA
LLE
D M
OD
EM
RJ1
1 (O
PTI
ON
)
SE
CO
ND
RS
232
PO
RT
(GN
S24
04B
, GN
S25
04B
E O
NLY
)
22 A
WG
TWIS
TED
SH
IELD
ED
PAIR
FUEL SOLENOID
PR
ES
TAR
T
2
MAGNETICPICK-UP
STARTER
2
2
FUE
L S
OLE
NO
ID
STA
RTE
R
DIES
EL/G
AS E
NGIN
E
GL3
3
WA
RN
ING
V B
ATA
LAR
M
1
ON
21
ON
4 23
FUEL LEVEL
OIL PRESSURE
ENGINE TEMP
N
2
GENE
RATO
R
L1L2
2
1
GC
B F
/B
L
MC
B
L3
L2L1
N
MA
INS
V B
ATV
BAT
V B
ATV
BAT
HO
RN
V B
AT
OIL
PR
ES
SU
RE
EN
GIN
E T
EM
P
FUE
L LE
VE
L
V B
AT
V B
AT
MC
B F
/B
V B
AT
1
GC
B
NO
TE:
SIN
GLE
LIN
E B
RE
AK
ER
CO
NTR
OL
W /
FEE
DB
AC
K S
HO
WN
.
18
AWG
RS
-232
3-W
IRE
NU
LL M
OD
EM
CA
BLE
.
4. U
.O.S
. ALL
WIR
ES
TO
BE
22
AWG
.
321
GN
S250
4B, G
NS2
504B
E O
NLY
RE
MO
TE S
TAR
T
FAU
LT R
ES
ET
MA
N M
OD
E
OFF
MO
DE
AU
TO M
OD
E
MC
B F
/B (
ALL
GN
S25
00 S
ER
IES
)
GC
B F
/B (
ALL
GN
S25
00 S
ER
IES
)
CN5
BIN
AR
Y IN
PU
TS
12
34
67
98
MA
GP
/U
DET
AIL
C
RE
MO
TE S
TOP
2
D+
3
ON
124
4-20
mA
INP
UT
ON
OTH
ER
WIS
E O
FF
DET
AIL
E
JUM
PE
R T
O B
RID
GE
INP
UT
1 TO
OU
TPU
T 1
DET
AIL
D
WIR
ING
FO
R D
+ E
XC
ITAT
ION
12/2
4VD
C
Bat
tery
3R
ELA
YS
4
DET
AIL
B
DET
AIL
A
RS
485
CA
N
21
ON
RS
485
CA
NTE
RM
INAT
ION
RE
SIS
TOR
S
W. J
UM
PE
RS
W. D
IP S
WIT
CH
ES
Jum
per O
N P
ins
120Ω
Ter
min
atio
n P
rese
nt
Jum
per O
FF P
ins
No
Term
inat
ion
Pre
sent
Sw
itch
ON
120
Ω T
erm
inat
ion
Pre
sent
Sw
itch
OFF
No
Term
inat
ion
Pre
sent
D+
DE
TAIL
A -
Sw
itcha
ble
term
inat
ion
resi
stor
s fo
r RS
-485
or C
AN
bus
net
wor
ks th
at
requ
ire te
rmin
atio
n.
DE
TAIL
B -C
onne
ct b
atte
ry p
ositi
ve to
one
sid
e of
the
norm
ally
ope
n re
lay
and
the
othe
r sid
e, th
ru d
iode
, to
the
D+
term
inal
of t
he a
ltern
ator
for D
+ E
xcita
tion.
DE
TAIL
C -
Exp
oded
vie
w o
f Bin
ary
Inpu
ts
DE
TAIL
D -
JUM
PE
R IN
STA
LLE
D -
If B
inar
y In
put 1
is a
ssig
ned
to E
-STO
P an
d B
inar
y O
utpu
t 1 is
ass
igne
d to
FU
EL, F
UEL
Out
put i
s co
ntro
lled
by E
-STO
P In
put t
hru
jum
per.
JUM
PE
R N
OT
INS
TALL
ED
- FU
EL O
utpu
t is
cont
rolle
d by
E-
STO
P In
put t
hru
cont
rolle
r sof
twar
e on
ly.
DE
TAIL
E -
Dip
switc
hes
for c
onfig
urin
g th
e an
alog
inpu
ts.
The
switc
hes
are
ON
on
ly w
hen
conn
ectin
g to
a 4
-20m
A ci
rcui
t.
MA
INS
PIB4127 C
This document is subject to change without notice. Caution: None of GAC products are flight certified controls including this item.
4
Physical Inputs
Output Description E Defaultsrecomm.
WireUtility/
generator
Voltage
Inputs
A / L1 Voltage 0-600VAC
18 AWGB / L2 Voltage 0-600VAC
C / L3 Voltage 0-600VAC
N / Neutral
generator
Current
Inputs
A / L1 Current 5A
18 AWGB / L2 Current 5A
C / L3 Current 5A
G / Neutral
Mag P/U Mag P/U 0.5-30 VAC RMS, 10KHz Max
22 AWG
Twisted /Sheilded
Pair
analog
Inputs
Analog 1 Default: Oil Pressure Oil Pressure
22 AWGAnalog 2 Default: Coolant Temp Coolant Temp
Analog 3 Default: Fuel Level Fuel Level
Analog 4 Default: Not used Not used
1. All analog inputs accepts the following signals: 0–5V, 4-20mA,0-20mA,0-100mV, Resistive (0-2.4k), Thermocouples (Type K).
2. There are four programmable graphs with a minimum of 2 points and a maximum of 10.
Note: When connecting a single wire resistive input, make sure the second input to the analog input is connected to ground.
Binary
Inputs
Binary 1 Default: E-Stop GCB F/B O/C
22 AWG
Binary 2 Default: Remote Stop E-Stop
Binary 3 Default: AUTO Mode MAN Mode
Binary 4 Default: OFF Mode OFF Mode
Binary 5 Default: MAN Mode AUTO Mode
Binary 6 Default: Fault Reset Remote S/S
Binary 7 Default: Remote Start Run All
Binary 8 Default: MCB F/B Day Lo Warning
Binary 9 Default: GCB F/B O/C Day Hi Warning
1. All binary inputs are closed to ground.
D+ D+Belt Break (alternator not
functioning). Not Enabled 18 AWG
1. To flash the alternator, connect alternator D+ to one side of one of the normally open relay
contacts with diode and the other side to B+; then assign the relay to “Starter”. (See DIagraM
4, DETaIL B)
Battery + 10 Amp Fused
18 AWG- Ground
CaN
L CAN Low
22 AWG
Twisted /Sheilded PairS Shield
H CAN High
Physical Outputs
Output Description E Defaults Notesrecomm.
Wire
Binary Outputs
Binary 1Form C relay Default: Fuel
StarterForm C Relays rated at 5A @ 125VAC, 28VDC
18 AWGBinary 2
Form C relay Default: Starter
Fuel
Binary 3Form a relay Default: Starter
Prestart 1 Form A Relays rated at 3A @ 30VDC
18 AWGBinary 4
Form a relayDefault: Prestart
Idle
Binary 5 Default: GCB Open/CloseGCB Open/Close Binary Outputs
5-9 are open collector, close to ground, diode protected to battery VDC.
22 AWG
Binary 6 Default: HornGenerator Running
Binary 7 Default: Common Alarm N/C
Binary 8 Default: Common Warning N/C
Binary 9 Default: UCB Open/Close N/C
WIRING the GNS REMOTE DISPlAYS TO the GNS CONTROLLER
gENEraL SUggESTED WIrINg INSTrUCTIONS
1. Battery positive(+) input should be fused for 10Amps.
2. The Magnetic Speed Sensor should be twisted and shielded the en-tire length and CAN connections must be twisted and shielded for the entire length.
3. The shield should be insulated to insure that no other part of the shield comes in contact with engine ground, otherwise stray signals may be introduced into the GNS2500 Series causing erratic operation. Shield should be tied at one end only.
4. For specific wiring instructions, refer to DIagraM 4. & TaBLE 2 & 3.
5. The GNS2500 Series is a highly configurable controller. Basic wiring diagram provided is for a basic generator set. Wiring configurations will vary. Minimum wire sizes specificied, actual wire size depends on application.
LB178-3
BATTERY8-32 VDC
+ -D+
BINARY INPUTS
21 43 75 6 98BO2P/U
MAG
CN BO1 BO3
RELAYSBO4
CCURRENT
GENERATOR
A B G
LB178-1
LB178-2
CGENERATOR VOLTAGEN B A+-+
1ANALOG INPUTS
-2
RS232/485
OUTPUTSBINARY
6 57 - +3
- +4
CANL S H
CN 89
RS232 FEMALE TO FEMALE NULL MODEMORRS485 FEMALE TO FEMALE STRAIGHT THROUGH
RS232 FEMALE TO FEMALE NULL MODEM
ANALOG INPUTS
RS232/485
HSLCAN BINARY
OUTPUTS
9 8 7NC
56 4+-
123+ +-- - +
GENERATOR VOLTAGEN C B A
LB178-2
BO4 CURRENTB
GENERATOR
A C G
LB178-18
8-32 VDC
D+
BATTERY
+
BINARY INPUTS
1- 2 3 4 5 6 7N
9 CP/U
MAGBO1 BO3BO2
RELAYS
LB178-3
RS232 FEMALE TO FEMALE NULL MODEMORRS485 FEMALE TO FEMALE STRAIGHT THROUGH
CUTILITY VOLTAGE
N AB
CUTILITY VOLTAGE
N AB
12/24VDC Battery
10 amp Fuse
TaBLE 2.
TaBLE 3.
12/24VDC Battery
10 amp Fuse
gNS remote Display
gNS remote Display
gNS remote Display
Back Mount gNS
Back Mount gNS
DIagraM 5. Back Mount gNSConnected to (2) remote Displays DIagraM 6. Stand alone gNS
Connected to a remote Display
5
USING THE GNS DISPLAY Definition LEDs
Status LED
A
Ready/Auto GNS is in Auto Mode and is ready to run GreenRunning Generator is running GreenSupplying Load Generator is generating power GCB is closed GreenNot in Auto GNS is in MAN Mode or Off Mode RedWarning A warning protection has been triggered YellowShutdown/Alarm A alarm protection has been triggered Red
B MainsAlarm RedWarning YellowOK based on enabled alarms Green
C MCB/GCBMCB/GCB Tripped or Faulted Red MCB/GCB Closed Green MCB/GCB Open Off
D (G)
Generator in Active Alarm Condition and shutting down or still running due to run all asserts RedGenerator in Active Warning Only condition and still running Yellow
Engine at nominal speed GreenGenerator not running due to normal or alarm shutdowns Off
Buttons
E
Start Start engine, “MAN Mode” only
Stop Stop engine (when pressed twice immediate stop engine) MAN Mode Only
Horn Silence If sounding, turns off horn until next new warning or alarm occurs
Fault ResetClear stored alarms. Resets system to allow normal operation. Caution, resetting faults when in Auto mode and remote start/stop signal active, may cause controller to initiate start sequence immediately.
MCB Open / Close MCB Open/CloseGCB Open / Close GCB Open/Close
F
Enter Primarily used to select and accept changed data.Left Arrow Screen / Parameter Changes Right Arrow Screen / Parameter ChangesUp Arrow Screen / Parameter ChangesDown Arrow Screen / Parameter ChangesBack Escape Button
Screen G 64 x 128 Graphical Display
DIagraM 7.
DIagraM 8. - MENU System
TaBLE 4.
TaBLE 5.
A
B
FD
C
C
G
E
ECUMonitor Screens
MainScreen
Binary Output States
Binary Input
States
Analog Meter
Screens
Power Screens
Generator Metering
Set Points
System Settings
Engine Parameters
Engine Protections
Generator Protections
Mains Protections
Setup / Test
Screen TestLED Test
Keyboard TestComm Test
Comm ModeLCD Contrast
LED BrightnessBacklight
Screen AlertScroll RateKey Delay
Temp ScaleOil P Scale Auto LogoutFault AlertFMI TypeDM1 Alert
Conv MethodDisplay System VerSystem Control Ver
CAN DTC List Event Log
System Settings
Password LoginChange Password
Gen ConfigZero LegHigh LegNom Volt
Nom AmpsNom Pwr
Phase Select Gen ConfigNom Freq CT RatioPT Ratio
Gear TeethGCB DelayHorn Period
D+Speed Inputs MasterSpeed Inputs Second Speed Inputs Tertiary
Engine Speed
Engine Parameters
RPM DisconnectOil Disconnect Prelube Period Prelube Pause
Idle/CoolingAfter Cool PeriodPrestart Period 1Prestart Period 2 Prestart Period 3 Prestart Period 4
Crank PeriodCrank Pause
Crank AttempsEngine Type
Gas RPM DelayGas RPM Pause
Vent Period Idle PeriodStop Period
Cooling Period
Engine Protections
OverspeedLow Fuel Delay
Low Fuel WarningLow Fuel AlarmLow Oil P Delay
Low Oil P Warning Low Oil P AlarmLow Temp Delay
Low Temp Warning Low Temp Alarm Hi Temp Delay
Hi Temp WarningHi Temp Alarm
Battery Over VoltBattery Under Volt
Battery DelayEng Prot Delay
Service HrsRun Hrs
GeneratorProtections
Overload Alarm Overload Warning
Overload DelayOver Curr AlarmOver Curr Delay
Curr Unbal Alarm Curr Unbal Delay
IDMTOver Volt Alarm
Over Volt Warning Under Volt Warning
Under Volt Alarm Volt Delay
Volt Unbal Alarm Volt Unbal DelayOver Freq Alarm
Over Freq WarningUnder Freq WarningUnder Freq Alarm
Freq DelayMin Voltage
Left Arrow then ENTER
Left Arrow then ENTER
Left Arrow then ENTER
Left Arrow then ENTER
UP
UP
UP
UP
UP
DO
WN
DO
WN
DO
WN
DO
WN
DO
WN
UP
Wrap to Generator Metering
EN
TE
R
RIGHTRIGHT RIGHT RIGHT
LEFT LEFT LEFT LEFT
Wrap to the Main Screen
RIG
HT
RIG
HT
RIG
HT
RIG
HT
LEF
TLE
FT
LEF
TLE
FT
RIG
HT
UP
DO
WN
UP
DO
WN
RIG
HT
LEF
T
RIG
HT
LEF
T
Alarms / Warning
RIGHT
LEFT
Analog Inputs
Mains Protections
MCB Open Event MCB F/B DelayReturn Delay
Volt UnblalanceVolt Unbal DelayOver Volt Alarm
Over Volt Warning Under Volt WarningUnder Volt Alarm
Voltage DelayOver Freq Alarm
Over Freq WarningUnder Freq WarnUnder Freq Alarm
Freq Delay
Left Arrow then ENTER
MainsMetering
RIG
HT
UP
To ALARMS/WARNINGS
To ALARMS/WARNINGS
To ALARMS/WARNINGS
To ALARMS/WARNINGS
To ALARMS/WARNINGS
To ALARMS/WARNINGS
To ALARMS/WARNINGS
LEFT
LEFT
LEFT
LEFT
LEFT
RIGHT
RIGHT
RIGHT
RIGHT
RIGHT
RIGHT
RIGHT
RIGHT
LEFTWraps to Alarms /
Warnings
Wraps from Alarms /
Warnings
LEFT
LEFT
RIGHT
LEFT
LEF
T
Wraps to Metering Screen
Wraps from Metering Screen
General Rules for Editing Set Points
Press ENTER, then LEFT/RIGHT ARROW to change from AUTO/MANUAL/OFF MODE.
Press ENTER, then UP/DOWN ARROW to change display from RPM to TOTAL POWER [TPw].
Press ENTER to select and accept a setpoint.
Press DOWN ARROW to go to the next set point.
Press UP ARROW to go to the previuos set point.
Press LEFT ARROW to cancel an entry.
Press RIGHT ARROW to skip to the next page.
Press BACK to move back one level in menu system.
MAIN SCREEN
Press ENTER to change mode LEFT/RIGHT.
*
*
*
* only displayed if ECU configured
Special Functions
Function Key Sequence / NotesChange Language
Hold “Horn Silence” and press ENTER. Display will cycle to next language available.
PasswordsThe GNS supports 6 user defined security levels (0-5). Each set point can be assigned a level to view the parameter, and a level to adjust the
parameter. See TaBLE 6. for default passwords.
Level Password0 No Password1 172 343 514 685 85
The passwords and set points for each security levels can be changed using GAC’s SmartVU software.
PIB4127 C
This document is subject to change without notice. Caution: None of GAC products are flight certified controls including this item.
6
TROUBlESHOOTING
Engine cranks, starts, then stops.
Crank Fail Shutdown
• Engine is not reaching start RPM• Oil pressure not high enough• Mis-configured speed input source
• Check magnetic pickup• Check oil pressure sensor• Check start RPM set point
• Check start oil pressure• Check speed input configuration (e.g., if engine is using magnetic pickup, make sure it is configured)
Engine cranks and starts, then engine stops but continues to crank.
• Starter and fuel outputs are mis-wired or mis-configured
• Check fuel and starter configuration. (By default, fuel is on discrete output 1 and starter is on discrete 2.)• Make sure the starter and fuel are wired properly.
Current is not properly displayed.
• Improper CT ratio• Improper wiring of CT’s
• Check CT primary and secondary set points.• CTs have a polarity. Verify the orientation of the CT. The phase of the current being captured by the CT must be in phase with the voltage inputs.
Power is not properly displayed.
• Mis-wired CTs or voltage inputs • Verify phase wiring of CT• Verify phase wiring of voltage inputs• Check CT primary and secondary set points• Enable the phase wiring voltage protection to verify the phase to phase wiring.
• Enable the phase wiring current protection to verify the current inputs are in phase with the voltage inputs – note: if the CT’s are wired to the proper phase, but are installed in reverse polarity the voltage and current will be 180 degrees out of phase.
Improper oil pressure be-ing displayed.
• Improperly defined analog curve for sender• Analog input for pressure sender not assigned• Ungrounded unused leg of analog input
• Check for accuracy of the sender profile.• Verify the analog input is mapped for use as an oil temperature sender.• Verify the resistance for the sender is correct for the actual temperature of the engine.• For a single wire resistive sender, verify the unused leg of the analog input is connected to ground.
The gNS is shutting down on a high coolant tempera-ture alarm immediately after the engine is started.
• Improperly defined analog curve for the sender
• Verify the curve of the sender. Some senders do not begin operating until a specific temperature is reached (e.g., 100F). This can be especially problematic if it is a reverse curve, i.e., a low resistance equates to a high temperature. With these senders, the resistance will appear to be low, or close to zero until the “turn on” temperature is reached.
Cannot see set point. • Logged in at wrong security level • Log in at security level high enough to view the set point.
Cannot start generator from front panel.
• GNS is not in Manual Mode• GNS previously shutdown because of a generator or engine protection.• Emergency stop condition• Starter binary output is not assigned
• Make sure the unit is in Manual Mode (check the display)• Check for shutdown and find cause. If generator condition has been corrected, press Fault Reset.• Make sure emergency stop switch is in proper position and is properly assigned. Typically, the emergency stop is a assigned to a normally closed input. If the emergency stop function is assigned to a discrete input, and the input is assigned to be normally open then the input must be a energized.• Check the starter wiring an make sure the starter function is properly mapped to the starter function.
rPM disappears from display after the engine is running.
• This is normal operation. RPM is replaced with power.
• Once the generator is up to speed, RPM and frequency (Hz) essentially conveying the same information as one can compute the other by applying a multiplier. The multiplier is derived using the nominal frequency and the nominal speed set points.
The fuel and starter are engaged as soon as the connector is plugged into the gNS.
• The start or the fuel solenoid are connected to the normally closed pins of the relay.
• Verify the connection is to the normally open contact. Discrete outputs 1 and 2 have form C relays, which have both normally open and normally closed contact.
SmartVU cannot connect to the gNS.
• GNS is not powered on• Invalid password• High noise from ignition cables (non diesel)
• Check make sure GNS is powered on• Insure the password is correct for the level being logged in to.• Verify that you are using the proper cable.
remote display does not consistently communicate to the gNS.
• if using RS-232, distance between display and GNS is greater than 27 feet (9m).• If using RS-485, terminating resistors not configured.
• If using RS-232 and distance is greater than maximum allowed distance, consider using RS-485.• If using RS-485, and GNS is last device on the cable, install jumpers to enable the terminating resistors.
gNS resets during crank. • Starter is drawing too much current and volt-age is sagging too low for too long.
• Check the crank capacity of the battery – the battery may need to be replaced or re-charged.
gNS display resets while cranking or running.
• High noise from ignition cables is interfering with the GNS.
• Replace high noise ignition cables with noise suppression cables.
EnvironmentalAmbient Operating Temperature...................................GNS2504–Temp:-40 to +85°C
GNS2502–Temp:-20 to +85°C
Relative Humidity.........................................................................95% non-condensingAgency Approvals............................................................UL2200*, UL508*, CE, CUL*
Input ParametersPower ......................................................................................................8VDC-32VDCRide Thru .................................................................................................0V for 50msPolarity Negative ................................................................................................GroundSpeed Sensor Signal ............................................. 0.5 – 30 Volts RMS, 30-1200 ohms9 Assignable Binary Inputs ..............................................................................0-32VDC4 Analog Inputs.....................................................Wide range of senders, includingVDO (e.g.,OilPressure,CoolantTemp)
0-5VDC +/-1.0%,4-20mA +/- 5.0%0-2.4K +/- 5.0 %
0-32mV +/- 1.0 % Generator Voltage....................................................................480VAC RMS Nominal 600VAC Max phase to phase 277VAC RMS Nominal phase to neutral
346VAC RMS Max phase to neutralAccuracy +/- 1%
Generator Current (CT Secondary)..........................................................5A NominalAccuracy +/- 1%
Output Parameters2 Form A Relay............................................................................................. 30VDC, 3A2 Form C Relay..............................................................................125VAC, 28VDC, 5A5 Binary Outputs...............................................................................0-32VDC,0-500mA
CommunicationsPC Configuration & Monitoring.............................................Modbus on RS-232/485ECU................................................................................................................J1939Remote Devices.........................Modbus on RS-232 or RS-485, J1939 on CAN bus
reliability
Testing.....................................................................................100% Functionally Tested
PhysicalOverall Dimensions................................................................................ 6” x 9” x 1.75” 152mm x 229mm x 445mmPanel Opening Size.............................................................................. 4.45” x 6.89” 113mm x 175mmWeight.................................................................................................... ............ 1.3lbs 0.59kgMounting........................................................................................Front Panel MountedGNS2504B, GNS2504BE...............................................................Back Panel/Din Rail
SmartVU RequirementsMicrosoft Windows 2000-Windows Vista...................Pentium II, 64M RAM, 10M Disk VGA, Serial Port* Non-E Versions Only
Options• Factory Installed Internal Modem• GNS2502D, GNS2502DE & • GNS2504D, GNS2504DE
Remote Display • EAM Ethernet Adapter• GNS2504B, GNS2504BE
Blackbox • Non-Display Control
• External Modem• Custom Displays (up to 65
LEDs, up to 24 Switches)• Remote Contact Relay Module • Remote Annunciator Panel• Remote Analog Gauge Drivers
Specifications