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4.3 Compressor Interface Module

TheCompressorInterfaceModule(CIM),alsoreferredtoastheCompressorI/OBoard,allowstheusertocontroland

communicatewiththecompressor,andallowsthecompressortoreturnstatusandsensorinformationtotheuser.

RefertoFigure4-18CompressorInterfaceModulePorts&Jumpers.

Figure 4-18 Compressor Interface Module Ports & Jumpers

Table 4-8 CIM Ports and Jumpers

No. Component No. Component

J1 RS-485CommunicationPort

JP1

AnalogOutputVoltage

J2 Input/Output JP2 MODBUSTerminator

J3 Input/Output JP3 Entry

J4 EXV1andEXV2Control JP4 Leave

J5 LiquidLevelInput JP5 LIQLEV1

J6 CompressorInterfaceCableConnection JP6 LIQLEV2

J7 RS-232ExternalCommunicationPort  

J8 ExternalSensorInputs  



4.3.1 Compressor Interface Module Connection Descriptions

J1 – RS-485 external communication port

l

JumperJP2requiredatendofModbusline

J2 – Input/output

l

DEMAND–Pin1&2–Analoginputtodrivecompressor(0-10V)

l

I/LOCK–Pin3&4–Interlocksafetyswitch:mustbepartofaclosedcircuittostartcompressor

Page 60 of 294 - M-SV-001-EN Rev. H 1/23/2023

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