vma1617 and vma1632 vav controllers installation...

VMA1617 and VMA1632 VAV ControllersInstallation Guide

ApplicationsThe VMA1617 and VMA1632 programmable digitalcontrollers are designed for Variable Air Volume(VAV) applications that communicate through theBACnet® MS/TP or N2 protocol. These VariableAir Volume Modular Assembly (VMA) controllersfeature combinations of an integral digital pressuresensor (DPT), a damper actuator, and a 32-bitmicroprocessor. The controllers' small package sizefacilitates quick field installation and efficient useof space without compromising high-tech controlperformance. These VMA controllers connect easilyto the non-communicating sensor for zone airtemperature sensing.

Switchable communicationsprotocolsBy default, Metasys® system controllers andnetwork sensors communicate using the standardBACnet protocol, based on the ANSI/ASHRAE135-2004.The BACnet® protocol is a standard for ANSI,ASHRAE, and the International StandardsOrganization (ISO) for building controls.VMA16 controllers are BTL-tested and listed asBACnet Application Specific Controllers (B-ASCs).Release 10.1 and higher of Controller ConfigurationTool (CCT) can be used to switch the Field Buscommunications protocol in this controllersto be either the standard BACnet MS/TP orthe N2 protocol. BACnet MS/TP is the defaultcommunications protocol for all new controllers.Switchable communications protocols provide acost-effective upgrade and modernization pathfor customers with existing N2 controllers. TheModernization Guide for Legacy N2 Controllers(LIT-12012005) and the controller-specificdocumentation provide installation andcommissioning support and include tips forefficient and safe replacement. Refer to the N2Compatibility Options chapter of the ControllerTool Help (LIT-12011147) for information aboutmapping N2 Objects in controllers with switchablecommunications protocols.The N2-capable controllers can be used as functionalreplacements for legacy N2 controllers. The N2-

capable controllers have the following features andbenefits:• Have the I/O quantities and characteristics of

Metasys family controllers

• Must be programmed with CCT, which has similar,but not identical programming capabilities asHVACPro, GX9100, GPL, and other legacy tools

• Support SA Bus devices

• Support WRZ wireless sensors from the controllerusing the WRZ-7860 receiver

• Are available in Buy American versions (mostmodels)

The N2-capable controllers do not support thefollowing features:• Zone Bus (for example, TMZ sensors and M100

actuators) or XT-Bus (System 91) devices (forexample, XT, XTM, and XP modules)

• Wireless connection to the N2 bus

• NxE passthrough

North American emissionscompliance

United StatesThis equipment has been tested and found tocomply with the limits for a Class A digital devicepursuant to Part 15 of the FCC Rules. These limitsare designed to provide reasonable protectionagainst harmful interference when this equipmentis operated in a commercial environment. Thisequipment generates, uses, and can radiate radiofrequency energy and, if not installed and used inaccordance with the instruction manual, may causeharmful interference to radio communications.Operation of this equipment in a residential areamay cause harmful interference, in which case theusers will be required to correct the interference attheir own expense.

*2410143349E*

Part No. 24-10143-349 Rev. E

2019-10-18

(barcode for factory use only)

MS-VMA1617, MS-VMA1632

CanadaThis Class (A) digital apparatus meets all therequirements of the Canadian Interference-CausingEquipment Regulations.Cet appareil numérique de la Classe (A) respectetoutes les exigences du Règlement sur le matérielbrouilleur du Canada.

InstallationObserve the following guidelines when installing aVMA1617 or VMA1632 controller:• Transport the controller in the original container

to minimize vibration and shock damage to thecontroller.

• Do not drop the controller or subject it to physicalshock.

Parts included• One VMA1617 or VMA1632 controller with

removable SA bus and power terminal blocks

• One installation instructions sheet

• One self-drilling No. 10 x 25 mm (1 in.) screw

Materials and special tools needed• Several 6 mm (1/4 in.) female spade terminals for

input and output wiring, and crimping tool forspade mounted terminal blocks

• Small, straight-blade screwdriver for securingwires in the terminal blocks

• 8 mm (5/16 in.) wrench or 10 mm (3/8 in.) 12-pointsocket to tighten the square coupler bolt

• Several shims or washers to mount the VMA

• Power screwdriver, 100 mm (4 in.) extensionsocket, punch, drill, and 3.5 mm (9/64 in.) drill bitsto mount the VMA

• Pliers to open and close the damper

• Required length of 3.97 mm (5/32 in.) IDpneumatic tubing and barbed fittings

Physical featuresThe following figure displays the physical featuresof a VMA, and the accompanying table provides adescription of the physical features and a referenceto further information where required.

VMA1617 and VMA1632 VAV Controllers Installation Guide2

Figure 1: VMA1617/VMA1632 Controller Wiring Terminations and Physical Features

Table 1: VMA1617/VMA1632 Feature CalloutNumbers and Descriptions

Physical Features: Description and References

1 24 VAC, Class 2 Supply Power (see Supply powerterminal block)

2 Device Address DIP Switch Block (see Setting the deviceaddress)

3 Binary Outputs, 24 VAC Triacs (see )

4Configurable Outputs: Voltage Analog Output (0–10VDC) and Binary Output (24 VAC Triac)(see )

5 Dual Port Fitting

6 Manual Override Button (see Mounting for informationon using manual override Button)

7 Controller Coupler (see Mounting for information onusing the controller coupler)

8 Coupler Bolt (see Mounting for information on settingthe coupler bolt)

9

Universal Input: Voltage Analog Input (0–10 VDC)Resistive Analog Inputs (0–600k ohm)0–2k PotentiometerRTD: 1k Nickel, 1k Platinum, or A99B SINTC: 10K Type L (10K Johnson Controls Type II isequivalent to Type L) or 2.252K Type IIDry Contact Binary Input

Table 1: VMA1617/VMA1632 Feature CalloutNumbers and Descriptions

Physical Features: Description and References

10FC Bus Terminal Block. May also be used for N2connections. Pluggable Screw (see FC bus terminalblock (Or N2 protocol as required))

11 EOL (End-of-Line) Switch (see Setting the EOL switch)12 SA Bus Spade Terminals (see SA Bus spade lugs)13 TSTAT Modular Port: RJ-45 8-Pin Modular Jack (see )14 Captive Spacer and Screw15 LED Status Indicators (see Table 10)

VMA1617 and VMA1632 VAV Controllers Installation Guide 3

MountingObserve the following guidelines when mounting aVMA:

Note: When the air supply to the VAV boxis below 10°C (50°F), make sure that anycondensation on the VAV box, particularly onthe damper shaft, does not enter the VMA

• Ensure that the mounting surface can supportthe controller and any user-supplied enclosure.electronics. Mount the controller vertically abovethe damper shaft to allow any shaft condensationto fall away from the controller. Additionalmeasures may be required in some installations.

• Mount the controller on a hard, even surfacewhenever possible.

• Use shims or washers to mount the controllersecurely and evenly on the mounting surface.

• Mount the controller in an area free of corrosivevapors that matches the ambient conditionsspecified in the section.

• Provide sufficient space around the controllerfor cable and wire connections and adequateventilation through the controller (at least 50 mm[2 in.] on the top, bottom, sides, and front of thecontrollers).

• Mount the VMA vertically above the damper shaftto allow any shaft condensation to fall away fromthe VMA.

Do not mount the controller in areas whereelectromagnetic emissions from otherdevices or wiring can interfere with controllercommunication.

• Avoid mounting the controller on surfaces withexcessive vibration.

• When using the VMA1617 or VMA1632 to replacea VMA1610 or VMA1620 controller, plug theunused open hole in the duct work from theoriginal VMA mounting if possible. Plug the holeusing the sheet metal screw from the originalinstallation (preferred option).

On panel or enclosure mount applications, observethese additional guidelines:• Do not install the controller in an airtight

enclosure.

• Mount the controller so that the enclosure wallsdo not obstruct cover removal or ventilationthrough the controller.

• Mount the controller so that the powertransformer and other devices do not radiateexcessive heat to the controller.

To mount the controllers, complete the followingsteps:1. Set all the switches on the field controller to

their known settings.

2. Place the controller in the proper mountingposition on the damper shaft so that the wiringconnections are easily accessible. Make surethe controller base is parallel to the VAV box(perpendicular to the damper shaft). If needed,use a spacer to offset tipping of the controllercaused by the shaft bushings.

Note: Use the alignment marks to centerthe captive spacer to ensure sufficientmovement in either direction.

3. Secure the self-drilling No. 10 screw throughthe captive spacer with a power screwdriverand 100 mm (4 in.) extension socket. Otherwise,use a punch to mark the position of theshoulder washer, and then drill a hole into theVAV box using a 3.5 mm (9/64 in.) drill bit. Insertthe mounting screw and tighten against thespacer.

Important: Do not overtighten the screw,or the threads may strip. If mounting tothe VAV box, make sure the screws do notinterfere with damper blade movement.

4. Locate the damper position using the typicalmarking on the end of the damper shaft asshown in the following figure.

Figure 2: Typical Damper End Shaft Icons


5. Note the direction, clockwise (CW) orcounterclockwise (CCW), required to close thedamper. Grasp the damper shaft firmly withpliers, and either manually close the damper for90° boxes or manually open the damper for 45°or 60° boxes.

6. Push down and hold the Manual Overridebutton (see ) and turn the controller coupleruntil it contacts the mechanical end-stop ateither the full-closed (90° boxes) or full-open(45° and 60° boxes) position.

7. If the damper for a 90° box closes CCW, rotatethe coupler to the CCW mechanical limit. Ifthe damper for a 90° box closes CW, rotatethe coupler to the CW mechanical limit. Theopen end-stop is automatically set for 90°boxes. For 45° and 60° boxes, hard stops mustbe provided at both full-closed and full-opendamper positions. By installing the controller atthe full-open position, the controller providesthe open stop for 45° and 60° boxes. The closeddamper seal provides the full-closed stop.

Note: The integrated actuator has astroke time of 60 seconds for 90° of travel.The stroke time is the amount of time(in seconds) that it takes the actuatorto move from the fully closed to fullyopened position or from fully open to fullyclosed position. For proper operation, theactuator stroke time must be configuredin the CCT application based on the actualtime it takes the actuator to drive thedamper. The default setting is 60 seconds(for 90° VAV boxes). For 45° and 60° VAVboxes, the actuator stroke time must beadjusted. Refer to Controller Tool Help(LIT-12011147) for instructions on settingthe actuator stroke time in the application.

8. All models are compact in size and can beeasily installed on VAV boxes. The models haveeither a round shaft up to 13 mm in diameteror a 10 mm square shaft. Tighten the squarecoupler bolt to the shaft using an 8 mm (5/16in.) wrench or 10 mm (3/8 in.) 12-point socket.Tighten to 10.5 to 11.5 N·m (95 to 105 lb·in).

9. (Skip this step if you are installing theVMA1626 model) Loop the pneumatic tubing(supplied by field personnel) to include atrap for condensation. Attach the neededlength of tubing (supplied and installed byfield personnel) to the dual port fitting on thecontroller and the other ends of the tubingto the pressure transducer in the VAV boxapplication.

Note: The controller uses a digital non-flow pressure sensor with bidirectionalflow operation. You can connect the high-and low-pressure DP tubes to eitherbarbed fitting on the controller. You do notneed to make a specific high- or low-sideconnection when you attach the tubing tothe barbed fittings on the controller.

10. Push the Manual Override button, and turn theactuator coupling manually to ensure that theactuator can rotate from full-closed to full-openpositions without binding.

11. Complete the mounting by rotating the damperto the full-open position.

CAUTION

Risk of Property DamageRotate the damper to the full-open position beforestarting the air handler. Failure to rotate the damper tothe full-open position may result in damage to the VAVbox or ductwork when the air handler is started.

ATTENTION

Risque de dégâts matérielsFaire pivoter le registre pour le placer en positiond'ouverture complète avant de démarrer l'unité detraitement d'air. Le non-respect de cette directiverisque d'endommager le caisson de l'unité à volumed'air variable (VAV) ou le réseau de conduites au dé-marrage de l'unité de traitement d'air.


Wiring

CAUTION

Risk of Electric ShockDisconnect the power supply before making electricalconnections to avoid electric shock.

ATTENTION

Risque de décharge électriqueDébrancher l'alimentation avant de réaliser tout rac-cordement électrique afin d'éviter tout risque dedécharge électrique.

Important: Do not connect supply powerto the controller before finishing wiring andchecking all wiring connections. Short circuitsor improperly connected wires can resultin damage to the controller and void anywarranty.

Important: Do not exceed the controllerelectrical ratings. Exceeding controller electricalratings can result in permanent damage to thecontroller and void any warranty.

Important: Use copper conductors only. Makeall wiring in accordance with local, national, andregional regulations.

Important: Electrostatic discharge candamage controller components. Use properelectrostatic discharge precautions duringinstallation, setup, and servicing to avoiddamaging the controller.

For information on configuring and wiringa BACnet/IP network, refer to the Metasys IPNetworks for BACnet/IP Controllers ConfigurationGuide (LIT-12012458). For detailed information onconfiguring and wiring a SA Bus, refer to the MS/TPCommunications Bus Technical Bulletin (LIT-12011034).

VMA terminals and bus portsSee for input and output terminal and bus portlocations on the controllers. Observe the followingguidelines when wiring a VMA controller.

Input and Output terminalsThe input spade terminals are located on thebottom of the VMA near the FC Bus terminal block.The output spade terminals are located on thetop of the controller near the power supply spadeterminals. For more information, see Table .

FC bus terminal block (Or N2 protocol asrequired)The FC Bus terminal block is a blue, removable, 4-terminal plug that fits into a board-mounted jack.Wire the removable FC Bus terminal block plugson the VMA and other controllers in a daisy-chainconfiguration using 3-wire twisted, shielded cable asshown in Figure 3. See Table for more information.

Figure 3: FC bus terminal block wiring

Note: The Shield terminal (SHLD) on the FCBus terminal block is isolated and can be usedto connect the cable shields on the bus (Figure3).

SA Bus spade lugsWire the SA Bus spade lugs on the VMA and otherSA Bus devices in a daisy-chain configuration using4-wire twisted, shielded cable as shown in Figure 4.See Table for more information.


Figure 4: SA Bus Spade Lug Wiring

Modular portsThe modular (TSTAT) port on the face of theVMAis an RJ-45, 8-position modular jack usedto easily connect one TE-730 series analog(non-communicating) sensor to the VMA. Themodular TSTAT port provides 15 VDC, SA Buscommunications, and analog signals for zonetemperature, zone setpoint, and temporary zoneoccupancy override.

Note: Do not use the modular SA Bus port andthe terminal block SA Bus simultaneously. Onlyuse one of these connections at a time.

Figure 5: Pin Number Assignments for theModular Port on VMA1617 and VMA1632Controllers

Supply power terminal blockThe 24 VAC supply power terminal block is agray, removable, 2-terminal plug that fits into a

board-mounted jack on the upper left of the VMAcontroller.Wire the 24 VAC supply power wires from thetransformer to the HOT and COM terminals on theterminal plug as shown in the following figure. SeeTable for more information.

Figure 6: 24 VAC Supply Power Spade TerminalWiring

Important: Exercise caution while rewiringthe power plug when replacing a VMA1610or VMA1620 controller with a VMA1617 orVMA1632 controller. The supply power terminalon a new VMA is a two-position terminal block(Figure 6). A VMA1610 or VMA1620 controlleruses a three-position terminal block, and thecenter position is not used. Stray wire strandsmay make contact and cause a short circuitacross the 24 VAC power supply.

The supply power wire colors may be different ontransformers from other manufacturers. Refer tothe transformer manufacturer’s instructions andthe project installation drawings for wiring details.

Important: Connect 24 VAC supply power tothe controller and all other network devicesso that transformer phasing is uniform acrossthe network devices. Powering networkdevices with uniform 24 VAC supply powerphasing reduces noise, interference, andground loop problems. The controller does notrequire an earth ground connection. However,when grounding the secondary of the 24 VACtransformer is required, only one connection toground should be made near the transformer.See the following figure.


Figure 7: Transformer Grounding

CAUTION

Risk of Property DamageDo not apply power to the system before checking allwiring connections. Improper wiring of this terminalmay cause a short circuit across the 24 VAC powersupply on VMA models. A short circuit may result in atripped circuit breaker or blown fuse. If using a trans-former with a built-in fuse, the transformer may needto be replaced.

ATTENTION

Risque de dommages matérielsNe mettez pas l’appareil sous tension avant d’avoirvérifié toutes les connexions du câblage. Le câblageinadéquat de cette borne peut causer un court-cir-cuit sur l’alimentation électrique de 24 V c.a. des VMAmodèles. Un court-circuit peut causer le déclenche-ment du disjoncteur ou le grillage d’un fusible. Si vousutilisez un transformateur avec un fusible intégré,vous pourriez devoir remplacer le transformateur.

To wire the controller, complete the following steps:1. Terminate wiring according the appropriate

figure in Termination diagrams.

2. Wire network sensors and other devices to theVMA's SA Bus.

3. Wire the FC Bus in a daisy chain.

4. Ensure that the device address DIP switchesare set to the appropriate device address. Also,activate the EOL switch if necessary.

5. Connect the controller to 24 VAC, Class 2 power.

Note: If you are using the VMA1617 orVMA1632 controller with the Wireless FieldBus System, refer to the WNC1800/ZFR182xPro Series Wireless Field Bus System Bulletin(LIT-12012320) or the ZFR Series Wireless FieldBus System Bulletin (LIT-12011336).

Terminal wiring guidelines,functions, ratings, andrequirements

Input and Output wiring guidelinesSee Table for information about the functions,ratings, and requirements for the input and outputterminals, and for wire sizes and cable lengthsguidelines.In addition, observe the following guidelines whenwiring inputs and outputs:• Run all low-voltage wiring and cables separate

from high-voltage wiring.

• All input and output cables, regardless of wiresize or number of wires, should consist of twisted,insulated, and stranded copper wires.

• Shielded cable is not required for input or outputcables but is recommended for input and outputcables that are exposed to high electromagneticor radio frequency noise.

• Cable runs of less than 30 m (100 ft) typically donot require an offset in the input/output softwaresetup.

• Cable runs over 30 m (100 ft) may require anoffset in the input/output software setup.


Input and Output wiring guidelinestablesTable 2: I/O terminal blocks, functions, ratings, requirements, and cables

Terminal block label Terminal labels Function, ratings, and requirements To determine wire size and maximumcable length

+15 V

15 VDC Power Source for active (3-wire)input devices connected to the Universal INnterminals.Provides 35 mA total current.

Same as (Universal) INn.Note: Use 3-wire cable for devicesthat source power from the +15 Vterminal.

Analog Input - Voltage Mode (0–10 VDC)10 VDC maximum input voltageInternal 75k ohm Pulldown

See Guideline A in Table 3.

Analog Input - Resistive Mode (0–600kohm)Internal 12 V, 15k ohm pull upQualified Sensors: 0–2k potentiometer,RTD (1k Nickel [Johnson Controls sensor],1k Platinum, and A99B Silicon TemperatureSensor)Negative Temperature Coefficient (NTC)Sensor10K Type L (10K Johnson Controls Type II isequivalent to Type L) or 2.252K Type II

See Guideline A in Table 3.INn

Binary Input - Dry Contact MaintainedMode1 second minimum pulse widthInternal 12 V, 15k ohm pull up


UNIVERSAL(Inputs)

ICOMn

Universal Input Common for all Universal INterminals

Note: All Universal ICOMn terminalsare isolated from all other commonson the -0 models. The -1 model ICOMnterminals are isolated from FC BUSCOM terminals only.

Same as (Universal) INn.

OUTnBinary Output - 24 VAC Triac (InternalPower)Sources internal 24 VAC power (24~ HOT)

See Guideline C in Table 3.

BINARY(Outputs)

OCOMn

Binary Output - 24 VAC Triac (InternalPower)Connects OCOMn to 24~ COM whenactivated.Internal Power Source:30 VAC maximum voltage to load0.5 A maximum output current1.3 A at 25% duty cycle40 mA minimum load current



Table 2: I/O terminal blocks, functions, ratings, requirements, and cables

Terminal block label Terminal labels Function, ratings, and requirements To determine wire size and maximumcable length

Analog Output - Voltage Mode (0–10 VDC)10 VDC maximum output voltage10 mA maximum output currentExternal 1k to 50k ohm load required


OUTnBinary Output 24 VAC TriacConnects OUT to OCOM when activated.External Power Source:30 VAC maximum voltage to load0.5 A maximum output current1.3 A at 25% duty cycle40 mA minimum load current


Analog Output Signal Common: AllConfigurable Outputs defined as AnalogOutputs share a common, which is isolatedfrom all other commons except the BinaryInput common.

CONFIGURABLE(Outputs)

OCOMnBinary Output Signal Common: AllConfigurable Outputs defined as BinaryOutputs are isolated from all other commons,including other Configurable Outputcommons.

Same as (Configurable) OUTn.

Table 3: Cable Length Guidelines for Recommended Wire Sizes

Guideline Wire Size/Gauge and Type Maximum Cable Length andType Assumptions

1.0 mm (18 AWG) stranded copper 457 m (1,500 ft) twisted wire0.8 mm (20 AWG) stranded copper297 m (975 ft) twisted wire 297 m (975 ft) twisted wire

0.6 mm (22 AWG) stranded copper183 m (600 ft) twisted wire 183 m (600 ft) twisted wireA

0.5mm (24 AWG) stranded copper107 m (350 ft) twisted wire 107 m (350 ft) twisted wire

100 mV maximum voltage dropDepending on the cable lengthand the connected input oroutput device, you may haveto define an offset in the setupsoftware for the input or outputpoint.

1.0 mm (18 AWG) stranded copper 229 m (750 ft) twisted wire0.8 mm (20 AWG) stranded copper297 m (975 ft) twisted wire 137 m (450 ft) twisted wire

0.6 mm (22 AWG) stranded copper183 m (600 ft) twisted wire 91 m (300 ft) twisted wireB

0.5 mm (24 AWG) stranded copper107 m (350 ft) twisted wire 61 m (200 ft) twisted wire


CSee Figure to select wire size/gauge.Use stranded copper wire.

See Figure to determine cablelength.Use twisted wire cable.

N/A


Cable and Wire Length GuidelinesThe following table defines cable length guidelinesfor the various wire sizes that may be used forwiring low voltage (<30 V) input and outputs.Table 4: Cable Length Guidelines

Guideline Wire Size/Gauge and Type Maximum Cable Length andType Assumptions

1.0 mm (18 AWG) stranded copper 457 m (1,500 ft) twisted wire0.8 mm (20 AWG) stranded copper297 m (975 ft) twisted wire 297 m (975 ft) twisted wire

0.6 mm (22 AWG) stranded copper183 m (600 ft) twisted wire 183 m (600 ft) twisted wireA

24 AWG stranded copper 107 m (350ft) twisted wire 107 m (350 ft) twisted wire


1.0 mm (18 AWG) stranded copper 229 m (750 ft) twisted wire0.8 mm (20 AWG) stranded copper297 m (975 ft) twisted wire 137 m (450 ft) twisted wire

0.6 mm (22 AWG) stranded copper183 m (600 ft) twisted wire 91 m (300 ft) twisted wireB

24 AWG stranded copper 107 m (350ft) twisted wire 61 m (200 ft) twisted wire


CSee Figure to select wire size/gauge.Use stranded copper wire.

See Figure to determine cablelength.Use twisted wire cable.

N/A

Maximum cable length versus loadcurrentUse Figure 8 to estimate the maximum cable lengthrelative to the wire size and the load current (in mA)when wiring inputs and outputs.

Figure 8: Maximum Wire Length by Current andWire Size

Communication bus and supply power terminal blocks, ratings, andrequirementsTable 5: Communication bus and supply power terminal blocks, functions, ratings, requirements, andcables

Terminal block/Port label Terminal labels Function, electrical ratings/Requirements

Recommended cable type11

+-

FC Bus Communications

COM Signal Reference (Common) for buscommunicationsFC BUS 22

SHLD Isolated terminal (optional shield drainconnection)

0.6 mm (22 AWG) stranded, 3-wiretwisted, shielded cable recommended


Table 5: Communication bus and supply power terminal blocks, functions, ratings, requirements, andcables

Terminal block/Port label Terminal labels Function, electrical ratings/Requirements

Recommended cable type11

+-

SA Bus Communications

COM SA Bus Signal Reference and 15 VDCCommonSA BUS33

POWER 15 VDC Supply Power for Devices on theSA Bus

0.6 mm (22 AWG) stranded, 4-wire(2 twisted-pairs), shielded cablerecommended

Note: The + and - wires are onetwisted pair, and the COM andSA PWR wires are the secondtwisted pair.

TSTAT TSTAT

RJ-45 8-Position Modular Connectorprovides +15 VDC Power for:

• Wireless CommissioningConverter

• VAV Balancing Tool• One-to-One Wireless Receiver• Network Sensor

24 AWG 4-pair CAT 5 Cable <30.5 m(100 ft)

HOT24 VAC Power Supply - HotSupplies 20–30 VAC (Nominal 24 VAC)

24~COM

24 VAC Power Supply CommonThe terminal is isolated from the FC buscommon.

0.8 mm to 1.0 mm(20 to 18 AWG) 2-wire

1 To determine wire size and cable lengths for cables other than the recommended cables, see Table .2 The SA Bus and FC Bus wiring recommendations in this table are for MS/TP Bus communications at 38.4k baud. For more

information, refer to the MS/TP Communications Bus Technical Bulletin (LIT-12011034).3 The SA bus wiring recommendations are for MS/TP Bus communications at 38.4k baud. For more information, refer to the MS/TP

Communications BusTechnical Bulletin (LIT-12011034).


Termination diagramsA set of Johnson Controls termination diagrams provides details for wiring inputs and outputs to thecontrollers. See the figures in this section for the applicable termination diagrams.Table 6: Termination details

Type of field device Type of Input/Output Termination diagrams

Voltage Input -External Source UI

Voltage Input -Internal Source UI

Voltage Input (Self-Powered) UI

Temperature Sensor UI

Dry Contact UI


Table 6: Termination details


0–10 VDC Output toActuator (InternalSource)

CO

0–10 VDC Output toActuator (ExternalSource)

CO

24 VAC Triac Output(Switch Low, ExternalSource)

CO

Note: Applies to CO4 and CO5.

Incremental Control toActuator (Switch Low,External Source)

CO

Note: Applies to CO4 and CO5.

Analog Output(Voltage) CO

Incremental Control toActuator (Switch Low,Internally Sourced)

BO

Note: Applies to BO3, BO1, and BO2.


Table 6: Termination details


24 VAC Binary Output(Switch Low, InternallySourced)

BO

Network Stat withPhone Jack (FixedAddress = 199)

SA Bus

Network Stat withTerminals Addressable SA Bus

Network Stat withTerminals (FixedAddress = 199)

SA Bus

Setup and adjustmentsImportant: Electrostatic discharge candamage controller components. Use properelectrostatic discharge precautions duringinstallation, setup, and servicing to avoiddamaging the controller.

Setting the device addressMetasys field controllers are master devices onBACnet® MSTP (SA or FC) Buses. Before operating

field controllers on a bus, you must set a valid andunique device address for each controller on thebus.Set a field controller’s device address by settingthe positions of the switches on the Device AddressDIP switch block at the top of the controller (Figure1). Device addresses 4 through 127 are the validaddresses for these controllers.The DIP switch block (Figure 9) has eight switchesnumbered 128, 64, 32, 16, 8, 4, 2, and 1. Switches 64through 1 are device address switches. Switch 128


is a mode switch that enables a field controller tooperate on a ZFR/ZFR Pro Series Wireless Field Bus.Switch 128 must be set to OFF for all hard-wired SAand FC Bus applications. Set Switch 128 to ON forwireless FC Bus applications only.

Figure 9: Device Address Switches Set to 21

Note: Metasys field controllers ship with Switch128 ON and the remaining address switchesOFF. This renders the controllers wiredsubordinate devices, which do not interfereon MSTP Buses and do not interfere withbus operation. Set a valid and unique deviceaddress on the controller before applyingpower to the controller on the bus.

To set the device addresses on a Metasys fieldcontroller:1. Set all of the switches on the field controller’s

device address DIP switch block (128 through 1)to OFF.

2. Set one or more of the seven address switches(64 through 1) to ON, so that the sum of theswitch numbers set to ON equals the intendeddevice address. See Table 7 and Table 8 forvalid field controller addresses. Set the highestnumber switch that is less than or equal to theintended device address to ON. Then continuesetting lower numbered switches until the totalequals the intended address. For example, ifthe intended device address is 21, set Switch 16to ON first, then set Switch 4 ON, followed bySwitch 1 (16+4+1=21). See Figure 9.

3. Set Switch 128 to ON only for controllerson a ZFR/ZFR Pro Series Wireless Field Busapplication. For all hard-wired SA and FC Busapplications, ensure that Switch 128 is set toOFF.

Note: Do not connect a wirelessly enabledfield controller to a wired FC Bus.

Refer to the WNC1800/ZFR182x Pro SeriesWireless Field Bus System Technical Bulletin(LIT-12012356) or the ZFR1800 SeriesWireless Field Bus System Technical Bulletin(LIT-12011295) for more information ondevice addresses in wireless applications.

4. Set a unique and sequential device addressfor each of the field controllers connected onthe SA or FC Bus, starting with device address4. To ensure the best bus performance, setsequential device addresses with no gaps inthe device address range (4, 5, 6, 7, 8, 9, andso on). The field controllers do not need tobe physically connected on the bus in theirnumerical device address order.

5. Write each field controller’s device address onthe white label below the DIP switch block onthe controller’s cover.

Refer to the MSTP Communications Bus TechnicalBulletin (LIT-12011034) for more information on fieldcontroller device addresses and how to set them onMSTP Buses.Table 7 and Table 8 show and describe the validFC Bus and SA Bus device addresses for JohnsonControls MSTP communications bus applications.

Table 7: FC Bus device address descriptionsDevice address Address description0(Switch 128OFF)

Reserved for FC Bus Supervisory Controller (notvalid for field controllers).

1 to 3(Switch 128OFF)

Reserved for peripheral devices (not valid forfield controllers).

4 to 127(Switch 128OFF)

Valid for MSTP Master field controllers on ahard-wired SA Bus or FC Bus.

Table 8: Wireless field bus device addressDevice address Address description

0 to 3(Switch 128 ON)

Reserved addresses for wired subordinatedevices (not valid for field controllers).

Note: Metasyscontrollers ship with 128ON and the remaining address switchesOFF, rendering the controllers wiredsubordinate devices, which do not operateon Metasys field buses.


Table 8: Wireless field bus device addressDevice address Address description

4 to 127(Switch 128 ON)

Valid for MSTP Master field controllers onwireless FC Buses only.

Note: Do not connect a Metasys controllerwith these device addresses to an activewired SA or FC Bus. When a controllerwith one of these device address isconnected to a wired field bus, the fieldbus is rendered inoperable until thecontroller is disconnected or Switch 128 isset to OFF.

Setting the N2 Controller address tobe greater than 127N2-configured controllers support the full rangeof possible N2 device addresses provided by theN2 protocol standard (1–254). However, thesecontrollers require special configuration foraddresses above 127.Use the following instructions for controllers greaterthan 127.

Note: This special configuration is requiredbecause controller addresses above 127 wereoriginally intended for use with the WirelessField Bus system.

Note: Prior to performing this procedure,be sure the controller has been convertedfrom BACnet to N2 protocol first. Refer to theModernization Guide for Legacy N2 Controllers(LIT-12012005) for more information.

1. Disconnect the 24 VAC supply from thecontroller.

2. Remove the FC Bus connector from thecontroller.

3. Set the address switch set to the desired N2address.

4. Set the address switch segment labeled 128 toOFF.

5. Reconnect the 24 VAC supply to the controller.

6. Using an SA bus connection, download thefirmware and controller application file. Thedownload process asks to confirm switching thecommunication protocol to N2.

7. Click OK.

8. After the download is finished, disconnect the24 VAC supply to the controller.

9. Set the address switch segment labeled 128 toON.

10. Reattach the FC Bus connector to the controller.

11. Reconnect the 24 VAC supply to the controller.

Setting the EOL switchEach field controller has an EOL switch, which,when set to ON (up), sets the field controller asa terminating device on the bus. See for the EOLswitch location on the field controller. The defaultEOL switch position is OFF (down). The amber EOLLED illuminates to show the EOL is active.

Figure 10: EOL switch positions

To set the EOL switch on a field controller:1. Determine the physical location of the

controller on the SA or FC Bus.

2. Determine if the controller must be set as aterminating device on the bus.

Note: The EOL termination rules forSA Buses and FC Buses are different.Refer to the MSTP Communications BusTechnical Bulletin (LIT-12011034) for detailedinformation regarding EOL terminationrules and EOL switch settings on SA and FCBuses.

3. If the controller is a terminating device onthe FC Bus, set the EOL switch to ON. If thecontroller is not a terminating device on thebus, set the EOL switch to OFF.

Note: When the EOL switch is set to ON,the LED light on the face of the controlleris illuminated.


Commissioning Field ControllersTo commission the VMA1617 or VMA1632 controller,use the following procedure:1. Download the control application to the

controller using the Controller ConfigurationTool (CCT). Refer to the Controller Tool Help(LIT-12011147) and Controller Provisioning withTools (LIT-12013247) .

2. Commission the VAV Box.

3. Perform airflow balancing on the VAV box.Refer to the VAV Balancing Tool Technical Bulletin(LIT-12011087).

4. Perform commissioning checkout procedures.Refer to the Controller Tool Help (LIT-12011147) and Controller Provisioning with Tools(LIT-12013247).

You commission controllers with the CCT software.The controller can be connected in one of fourways; either through NxE Passthru, MAP 4.2+/BACnet Router (Mobile Access Portal (MAP)Gateway at version 4.2 or above), through Bluetooth(using BTCVT), or Direct Ethernet connection tothe controller. Refer to the Controller Tool Help(LIT-12011147) and Controller Provisioning withTools (LIT-12013247) for detailed information aboutcommissioning field controllers.

Note:• The MAP Gateway serves as a replacement

for the BTCVT, which is no longer availablefor purchase, but continues to be supported.

Repair informationIf the controller fails to operate within its specifications, replace the unit. For a replacement unit, contact thenearest Johnson Controls representative.

TroubleshootingTable 10 provides LED status indicator informationfor troubleshooting the controllers.

Note: If you experience short circuits in the 24VAC power supply causing protective devicessuch as breakers or fuses to trip, make surethat the power connections on the VMA arenot reversed. The most common cause of thisproblem is when the 24 VAC power supplyon the VMA is reversed but not reversed on aconnected secondary device. Improper wiringof this power terminal may cause a short circuitacross the 24 VAC power supply on -1 models.


General troubleshootingTable 9: TroubleshootingProblem Possible cause and correction Verification

Controller is OFF.• Transformer has tripped:

• Power is at Primary ofTransformer, 0V at Secondary.

• Breaker/Fuse has tripped:• Power is at Primary of

Transformer, 24V at Secondary,0V at Fuse/Breaker.

Cause:1. Transformer is shorted.2. 24 VAC powered sensor is not

wired with the same polarity as thecontroller.

3. SA Bus device is not wired with thesame polarity as the controller.

Correction:1. Ensure polarity of ~24 V COM / ICOM /

+ 15VCOM/SA BUS COM on thecontroller, auxiliary devices, and I/O isthe same.

2. Ensure OUT1-OUT3 terminals of binaryoutputs are not connected to ~24VAC COM, and verify that OCOM1-OCOM3 are not connected to ~24 VACHOT (these terminals are internallysourced).

3. Verify the short circuit has beenresolved with an ohm-meter.

4. Reset the breaker/fuse or replace thetransformer.Note: When replacing thetransformer, it is recommended toreplace with a model that utilizes aresettable circuit breaker. A circuitbreaker makes solving wiringproblems easier.

1. Disconnect the Secondary of the 24VAC transformer.

2. Use an ohm-meter to measurebetween ~24 V HOT and COM; theremust be no short circuit.Note: Some installations requirethe Secondary of the Transformerto be Earth Grounded. If this isthe case, verify that the EarthGround connection is valid and notshared between multiple pieces ofequipment.

Configurable output - analog mode isinvalid:0–10 V output is set to 10–100%, but 0 V is atoutput terminals.Output is in protection mode, a state theanalog portion of the configurable outputgoes into when it detects a wiring problem.The analog output is set to 0% regardlessof the command whenever a wiring fault isdetected.

Cause:There is a power polarity mismatch betweenthe connected device and the configurableoutput.Correction:Ensure polarities of ~24 V COM/OCOMmatch and that the connected end deviceuses the same polarity.

1. Measure the output and verify that itmatches the command.

2. Disconnect the connected deviceand verify the commanded value ispresent.

Configurable output - analog mode isinvalid:0–10V output has an undesirable offset of upto 1 V.The Common Reference is incorrect.

Cause:The OCOM terminal is not connected.Correction:Connect the OCOM terminal of theconfigurable output to the common of theconnected end device.

1. Measure the output and verify that itmatches the command.

2. Disconnect the connected deviceand verify the commanded value ispresent.


LED status and statesTable 10: Status LEDs and description of LED statesLED label LED color Normal state Descriptions of LED states

POWER Green On SteadyOff Steady = No powerOn Steady = Power is supplied by primary voltage

FAULT Red Off Steady

Blink - 2 Hz = Download or startup in progress, notready for normal operation, SA Bus devices offline(such as netsensors)Rapid blink = SA Bus communications issueOff Steady = No faultsOn Steady = Device fault or no application loaded

FC BUS Green Blink - 2 Hz

Blink - 2 Hz = Data transmission (normalcommunication)Off Steady = No data transmission (auto baud inprogress)On Steady = communication lost, waiting to joincommunication ring

SA BUS Green Blink - 2 Hz

Blink - 2 Hz = Data transmission (normalcommunication)Off Steady = No data transmission (N/A - auto baudnot supported)On Steady = Communication lost; waiting to joincommunication ring

EOL Amber OffOn Steady = EOL is activeOff Steady = EOL is not active

AccessoriesTable 11: VMA1617 and VMA1632 Controller Accessories (Order Separately)Product code number Description

IOM Series Controllers Refer to the Metasys® System Field Equipment Controllers and Related Products Product Bulletin(LIT-12011042) for a complete list of available IOM Series Controllers.

Mobile Access Portal (MAP) Gateway Refer to the Mobile Access Portal Gateway Catalog Page (LIT-1900869) to identify theappropriate product for your region.

MS-DIS1710-0Local Controller Display

MS-BTCVTCBL-700 Cable Replacement Set for the MS-BTCVT-1 or the NS-ATV7003-0; includes One 1.5 m (5 ft)Retractable Cable

Y64T15-0 Transformer, 120/208/240 VAC Primary to 24 VAC Secondary, 92 VA, Foot Mount, 72.2 cm (30in.), Primary Leads and 76.2 cm (30 in.) Secondary Leads, Class 2

Y65A13-0 Transformer, 120 VAC Primary to 24 VAC Secondary, 40 VA, Foot Mount (Y65AS), 20.32 cm (8in.), Primary Leads and 76.2 cm (30 in.) Secondary Leads, Class 2

Y65T42-0 Transformer, 120/208/240 VAC Primary to 24 VAC Secondary, 40 VA, Hub Mount (Y65SP+),20.32 cm (8 in.), Primary Leads and Secondary Screw Terminals, Class 2

Y65T31-0 Transformer, 120/208/240 VAC Primary to 24 VAC Secondary, 40 VA, Foot Mount (Y65AR+),20.32 cm (8 in.), Primary Leads and Secondary Screw Terminals, Class 2

AP-TBK1002-0 2-position Screw Terminal that plugs onto VMA Output Point Spade LugsAP-TBK1003-0 3-position Screw Terminal that plugs onto VMA Output Point Spade LugsAP-TBK4SA-0 Replacement MS/TP SA Bus Terminal, 4-Position Connector, Brown, Bulk Pack of 10AP-TBK4FC-0 Replacement MS/TP FC Bus Terminal, 4-Position Connector, Blue, Bulk Pack of 10AP-TBK2PW-0 Replacement Power Terminal, 2-Position Connector, Gray, Bulk Pack of 10AS-CBLTSTAT-0 Cable adapter for connection to 8-pin TE-6700 Series sensors


Table 11: VMA1617 and VMA1632 Controller Accessories (Order Separately)Product code number Description

F-1000-325 Replacement Barbed Fitting for use on VMA1615, VMA1630, and VMA1832 for ConnectingTubing, Bulk Pack of 10

F-1000-326 Flexible Tubing Extension with Barbed Fitting for VMA1617 and VMA1632, 35.56 cm (14 in.)Length, Bulk Pack of 20

MS-VMAACT-701 VMA Actuator Assembly Gearbox Replacement KitTE730-29C-0 Sensor with Temperature Setpoint AdjustmentTE730-39C-0 Sensor with Temperature Setpoint Adjustment and Occupancy ButtonTL-BRTRP-0 Portable BACnet/IP to MS/TP Router


Technical specifications

Table 12: VMA1617 and VMA1632 Controllers

Product Code Numbers

MS-VMA1617-x: 32-bit, Integrated VAV Controller/Actuator/Pressure Sensor - DPT, 3 UIand 2 BO, 24VAC, FC and SA Bus, Includes 8-pin TSTAT Port for use with TE-7xx SeriesNon-Communicating SensorsMS-VMA1632-x: 32-bit, Integrated VAV Controller/Actuator/Pressure Sensor - DPT; 3 UI,3 BO, and 2 CO; 24 VAC; FC and SA Bus; Includes 8-pin TSTAT Port for use with TE-7xxSeries Non-Communicating Sensor

Communications Protocol BACnet MSTP, N2

Engines All Model types. Some NIE models support MS/TP and N2 devices. Refer to the NetworkEngines Product Bulletin (LIT-12012138) for details.

Supply Voltage 24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz, Power Supply Class 2(North America), Safety Extra-Low Voltage (SELV) (Europe)

Power Consumption

10 VA typical, 14 VA maximumNote: The VA rating does not include any power supplied to the peripheral devicesconnected to Binary Outputs (BOs) or Configurable Outputs (COs), which canconsume up to 12 VA for each BO or CO, for a possible total consumption of anadditional 60 VA (maximum).

Ambient ConditionsOperating: 0°C to 50°C (32°F to 122°F)Storage: -40°C to 70°C (-40°F to 158°F)

TerminationsInputs/Outputs, SA bus, and Supply Power: 6.3 mm (1/4 in.) Spade LugsFC Bus, Pluggable Screw Terminal BlockTSTAT Modular Port: RJ-45 8-Pin Modular Jack

Controller Addressing for BACnet MSTPDIP switch set; valid field controller device addresses 4–127(Device addresses 0–3 and 128–255 are reserved and not valid field controller addresses.)

Controller Addressing for N2 DIP switch set; valid field controller device addresses 1–254

Communications Bus

RS-485: selectable between BACnet MSTP or N2FC Bus: 0.6 mm (22 AWG) standard 3-wire, twisted, shielded cable recommendedbetween the supervisory controller and controller10/100 Mbps; 8-pin RJ-45 connectorSA Bus: 0.6 mm (22 AWG) stranded, 4-wire (2-twisted pairs) shielded cable recommendedfrom the VMA controller for network sensors and other sensor/actuator devices; includesa terminal to source 15 VDC supply power from VMA to SA Bus devices

Note: For more information, refer to the MS/TP Communications Bus TechnicalBulletin (LIT-12011034), Metasys IP Networks for BACnet/IP Controllers ConfigurationGuide (LIT-12012458)MS/TP Communications Bus Technical Bulletin (LIT-12011034).

Processor RX630 32-bit Renesas® microcontrollerMemory 1 MB flash memory and 512 KB RAMUniversal Input Mode/ConfigurableOutput Mode Accuracy

UI Analog Input Mode: 15-bit resolution on UIsCO Analog Output Mode (VMA1632-x only): 0–10 VDC ± 200 mV

Air Pressure Differential Sensor

Range: -1.5 in. to 1.5 in. W.C.Performance Characteristics:Accuracy: ±1.3% Full Span Maximum (±0.039 in. W.C.)Typical accuracy at zero (null) pressure is ±0.02 in. W.C.(if provided)

Note: For more information, refer to the MS/TP Communications Bus TechnicalBulletin (LIT-12011034) or N2 Communication Bus Technical Bulletin (LIT-636018).

Actuator Rating 4 N·m (35 lb·in) minimum shaft length = 44 mm (1-3/4 in.) (if provided)Mounting Mounts to damper shaft using single set screw and to duct with single mounting screwDimensions(Height x Width x Depth)

165 mm x 125 mm x 73 mm (6.5 in. x 4.92 in. x 2.9 in.)Center of Output Hub to Center of Captive Spacer: 135 mm (5-5/16 in.)

Weight 0.65 kg (1.45 lb)


Table 12: VMA1617 and VMA1632 ControllersUnited States:UL Listed, File E107041, CCN PAZX, UL 916, Energy Management Equipment.FCC Compliant to CFR47, Part 15, Subpart B, Class A.Canada:UL Listed, File E107041, CCN PAZX7, CAN/CSA C22.2 No. 205, Signal Equipment.Industry Canada Compliant, ICES-003Europe:CE Mark – Johnson Controls declares that this product is in compliance with the essentialrequirements and other relevant provisions of the EMC Directive.Australia and New Zealand:RCM Mark, Australia/NZ Emissions Compliant.

Compliance

BACnet InternationalBACnet Testing Laboratories (BTL) Protocol Revision 12 Listed BACnet AdvancedApplication Controller (B-AAC)BACnet Testing Laboratories (BTL) Protocol Revision 7Listed BACnet Application Specific Controller (B-ASC)

The performance specifications are nominal and conform to acceptable industry standard. For application atconditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls shall not beliable for damages resulting from misapplication or misuse of its products.

Product warrantyThis product is covered by a limitedwarranty, details of which can be found atwww.johnsoncontrols.com/buildingswarranty.

Single point of contactAPAC Europe NA/SAJOHNSON CONTROLS

C/O CONTROLS PRODUCTMANAGEMENT

NO. 32 CHANGJIJANG RD NEWDISTRICT

WUXI JIANGSU PROVINCE 214028

CHINA

JOHNSON CONTROLS

WESTENDHOF 3

45143 ESSEN

GERMANY

JOHNSON CONTROLS

507 E MICHIGAN ST

MILWAUKEE WI 53202

USA


http://www.johnsoncontrols.com/buildingswarranty

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