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Communication bus and supply power table

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

requirements, and cables

Terminal

block/Port

label

Terminal labels Function, electrical ratings/

Requirements

Recommended cable
type

+
-

FC Bus Communications

COM

Signal Reference (Common) for bus

communications

FC BUS

SHLD

Isolated terminal (optional shield

drain connection)

0.6 mm (22 AWG)

stranded, 3-wire

twisted, shielded cable

recommended

+
-

SA Bus Communications

COM

SA Bus Signal Reference and 15 VDC

Common

SA BUS

SA PWR

15 VDC Supply Power for Devices on

the SA Bus

0.6 mm (22 AWG)

stranded, 4-wire (2

twisted-pairs), shielded

cable recommended
The + and - wires are

one twisted pair and the

COM and SA PWR are

the second twisted pair

of wires.

SENSOR

(SA Bus Port)

SENSOR

RJ-12 6-Position Modular Connector

provides:
SA Bus Communications
SA Bus Signal Reference and 15 VDC

Common
15 VDC Power for devices on the SA

Bus

24 AWG 3-pair CAT 3

Cable
<30.5 m (100 ft)

HOT

24 VAC Power Supply - Hot

Supplies 20 to 30 VAC (Nominal 24

VAC)

24~

COM

24 VAC Power Supply Common

(Isolated from all other Common

terminals on controller)

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

See Table 3 to determine wire size and cable lengths for cables other than the recommended cables.

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

FX-PC Series Controllers MS/TP Communications Bus Technical Bulletin (LIT-12011670)

FX-PCV Programmable Variable Air Volume Box Controllers Installation Instructions

Содержание FX-PCV Series

Страница 1: ... and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area may cause harmful interference in which case the users will be required to correct the interference at their own expense Canada This Class A digital apparatus meets all the requiremen...

Страница 2: ...sions from other devices or wiring can interfere with controller communication On panel or enclosure mount applications observe these additional guidelines Do not install the controller in an airtight enclosure Mount the controller so that the enclosure walls do not obstruct cover removal or ventilation through the controller Mount the controller so that the power transformer and other devices do ...

Страница 3: ...10 mm square shaft Tighten the square coupler bolt to the shaft using an 8 mm 5 16 in wrench or 10 mm 3 8 in 12 point socket Tighten to 11 to 15 N m 100 to 130 lb in 8 Loop the pneumatic tubing to include a trap for condensation Attach the tubing from the FX PCV controller to the VAV box pickup The HIGH red tubing is connected to the inlet or high pressure side and the clear tubing to the low side...

Страница 4: ...y Outputs 24 VAC Triacs 6 Configurable outputs can be defined as Voltage Analog Output 0 10 VDC Binary Output 24 VAC Triac 7 24 VAC Class 2 Supply Power Terminal Block 8 Anti rotation slot 9 LED Status Indicators 10 FC Terminal Block 11 Sensor Port SA Bus RJ 12 6 Pin Modular Jack 12 SA Terminal Block 13 Sensor Port SA Bus RJ 12 6 Pin Modular Jack FX PCV Programmable Variable Air Volume Box Control...

Страница 5: ... wires can result in damage to the controller and void any warranty Important Do not exceed the controller electrical ratings Exceeding controller electrical ratings can result in permanent damage to the controller and void any warranty Important Use copper conductors only Make all wiring in accordance with local national and regional regulations Important Electrostatic discharge can damage contro...

Страница 6: ...sing 3 wire twisted shielded cable as shown in Figure 3 See Table 5 for more information Note The Shield terminal SHLD on the FC Bus terminal block is isolated and can be used to connect the cable shields on the bus Figure 3 Figure 3 FC bus terminal block wiring SA bus terminal block The SA Bus terminal block is a brown removable 4 terminal plug that fits into a board mounted jack Wire the removab...

Страница 7: ...ly power wires from the transformer to the HOT and COM terminals on the terminal plug as shown in Figure 6 The middle terminal on the supply power terminal block is not used See Table 5 for more information The supply power wire colors may be different on transformers from other manufacturers Refer to the transformer manufacturer s instructions and the project installation drawings for wiring deta...

Страница 8: ...t cables regardless of wire size or number of wires should consist of twisted insulated and stranded copper wires Shielded cable is not required for input or output cables Shielded cable is recommended for input and output cables that are exposed to high electromagnetic or radio frequency noise Cable runs that are less than 30 m 100 ft typically do not require an offset in the input output softwar...

Страница 9: ...eter RTD 1k Nickel Johnson Controls sensor 1k Platinum and A99B Silicon Temperature Sensor Negative Temperature Coefficient NTC Sensor 10K Type L 10K JCI Type II is equivalent to Type L or 2 252K Type II See Guideline A in Table 3 ICOMn Universal Input Common for all Universal IN terminals Note All Universal ICOMn terminals share a common which is isolated from all other commons Same as Universal ...

Страница 10: ...m 6 cycles hour with M9220 BGx 3 40 mA minimum load current Analog Output Voltage Mode 0 10 VDC 10 VDC maximum output voltage 10 mA maximum output current External 1k to 50K ohm load required See Guideline A in Table 3 CONFIGURABLE Outputs OUTn Binary Output 24 VAC Triac Connects OUT to OCOM when activated External Power Source 30 VAC maximum voltage to load 0 5 A maximum output current 1 3 A at 2...

Страница 11: ...um Cable Length and Type Assumptions 1 0 mm 18 AWG stranded copper 457 m 1 500 ft twisted wire 0 8 mm 20 AWG stranded copper 297 m 975 ft twisted wire 0 6 mm 22 AWG stranded copper 183 m 600 ft twisted wire A 0 5 mm 24 AWG stranded copper 107 m 350 ft twisted wire 100 mV maximum voltage drop Depending on the cable length and the connected input or output device you may have to define an offset in ...

Страница 12: ...on for the applicable termination diagrams Table 4 Termination details Type of field device Type of Input Output Termination diagrams Temperature Sensor UI Voltage Input External Source UI Voltage Input Internal Source UI Voltage Input Self Powered UI Dry Contact Binary Input UI FX PCV Programmable Variable Air Volume Box Controllers Installation Instructions 12 ...

Страница 13: ...0 10 VDC Output to Actuator Internal Source CO or AO Analog Output Voltage CO or AO 24 VAC Triac Output Switch Low External Source CO or AO Incremental Control to Actuator Switch Low Externally Sourced CO or AO 24 VAC Binary Output Switch Low Internal Source BO 13 FX PCV Programmable Variable Air Volume Box Controllers Installation Instructions ...

Страница 14: ...Fixed Address 199 SA Bus Network Stat with Terminals Addressable SA Bus Network Stat with Terminals Fixed Address 199 SA Bus Maximum cable length versus load current Use Figure 7 to estimate the maximum cable length relative to the wire size and the load current in mA when wiring inputs and outputs FX PCV Programmable Variable Air Volume Box Controllers Installation Instructions 14 ...

Страница 15: ...s in Table 5 observe these guidelines when wiring the SA FC Buses and supply power Run all low voltage wiring and cables separate from high voltage wiring All FC and SA Bus cables regardless of wire size should be twisted insulated stranded copper wire Shielded cable is strongly recommended for all FC and SA Bus cables Refer to the FX PC Series Controllers MS TP Communications Bus Technical Bullet...

Страница 16: ...sted pair and the COM and SA PWR are the second twisted pair of wires SENSOR 2 SA Bus Port SENSOR RJ 12 6 Position Modular Connector provides SA Bus Communications SA Bus Signal Reference and 15 VDC Common 15 VDC Power for devices on the SA Bus 24 AWG 3 pair CAT 3 Cable 30 5 m 100 ft HOT 24 VAC Power Supply Hot Supplies 20 to 30 VAC Nominal 24 VAC 24 COM 24 VAC Power Supply Common Isolated from al...

Страница 17: ...vice addresses on an FX PCV controller 1 Set all of the switches on the 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 the switch numbers set to ON equals the intended device address See Table 6 for valid controller addresses Set the highest number switch that is less than or equal to the inten...

Страница 18: ...ller 1 Determine the physical location of the FX PCV controller on the SA or FC Bus 2 Determine if the controller must be set as a terminating device on the bus Note The EOL termination rules for SA Buses and FC Buses are different Refer to the FX PC Series Controllers MS TP Communications Bus Technical Bulletin LIT 12011670 for detailed information regarding EOL termination rules and EOL switch s...

Страница 19: ... Green Blink 2 Hz Blink 2 Hz Data transmission normal communication Off Steady No data transmission N A auto baud not supported On Steady Communication lost waiting to join communication ring Repair information If the FX PCV controller fails to operate within its specifications contact the Johnson Controls Repair Center in Louisville Kentucky at 1 502 671 7312 Accessories Use Table 8 to order acce...

Страница 20: ...d Fan Control Note FX PCV1620 1U 1 UI 3 BO 2 CO FX PCV Cooling with Reheat and Fan Control Only xU models of these controllers are available These models are for smoke control applications only If your application is not for a UL 864 UUKL 10th Edition smoke control application please review the product selection before installation Supply Voltage 24 VAC nominal 20 VAC minimum 30 VAC maximum 50 60 ...

Страница 21: ... Analog Input 15 bit resolution Analog Output 16 bit resolution and 200 mV in 0 10 VDC applications Air Pressure Differential Sensor Setra transducer differential pressure to electrical 0 mm to 38 1 mm 0 to 1 5 in WC 0 5 VDC to 4 5 VDC 5 VDC supply aluminum plated Performance Characteristics Combined Repeatability and Hysteresis Error 0 05 of Full Span Maximum Non linearity Errors Best Fit Method ...

Страница 22: ...ns Compliant Compliance BACnet International BACnet Testing Laboratories BTL Protocol Revision 7 Listed BACnet Application Specific Controller B ASC 1 For more information refer to the FX PC Series Controllers MS TP Communications Bus Technical Bulletin LIT 12011670 The performance specifications are nominal and conform to acceptable industry standard For application at conditions beyond these spe...

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