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C200 and Case Display Guide PAGE 10
Legend
Terminal Label Purpose
1 - 3 TRIAC Connection of PWM expansion valve
4 - 6 FAN/CT Fan control relay. Connection of evaporator fan motor or control point (contactor/pilot relay).
Internal amperage monitor measures motor current.
7 - 9 DEFROST Defrost control relay. Connection of defrost heater or control point (contactor/pilot relay).
10 - 12 LIGHT Light control relay. Connection of case lights.
13 - 15 REFRIG Refrigeration control relay for connection of liquid line solenoid valve (if present).
16 - 18 AUX RELAY Auxiliary control relay for spare or additional functions.
21 - 23 RS485 Port A RS485 serial communications port.
24 - 26 RS485 Port B RS485 serial communications port for BACnet MS/TP connection to E2E.
27 - 29 Remote Display Connection for CC200 case display.
NA ETH1 RJ45 Ethernet 1 used for case lineup peer communication and BACnet IP.
NA ETH2 RJ45 Ethernet 2 used for case lineup peer communication and BACnet IP.
NA USB Universal Serial Bus female connector. Emerson use only.
NA Auxiliary Port Connection to CC200 expansion module if present.
NA Expansion Port Connection to CC200 expansion module if present.
31 - 32 DI1-C Potential free digital Input 1 and common. Software selectable function.
33 - 35 DI2-C Potential free digital Input 2 and common. Software selectable function.
35 - 37 DI3-C Potential free digital Input 3 and common. Software selectable function.
37 - 39 DI4-C Potential free digital Input 4 and common. Software selectable function.
39 - 40 AO1 Analog output 1 connection, software selectable function.
31 - 42 AO2 Analog output 2 connection, software selectable function.
43 - 45 Pressure 0V, Sig, +5v Pressure transducer connection, .5-4.5VDC software selectable EU range.
46 - 47 DAT Discharge air temperature sensor connection, non-polarity sensitive.
48 - 49 Term Defrost termination temperature sensor connection, non-polarity sensitive.
50 - 51 RAT Return air temperature sensor connection, non-polarity sensitive.
52 - 53 Coil Out Coil outlet temperature sensor connection, non-polarity sensitive.
54 - 55 Def CT Amps Defrost heater amperage current transducer, optional.
56 - 57 AI 1 Auxiliary analog input 1 connection, software selectable function.
58 - 59 AI 2 Auxiliary analog input 2 connection, software selectable function.
60 - 61 Aux Pwr Auxiliary power supply for transducers requiring 12VDC external power.
NA PWR ON Power on LED, indicates supply power is present to the main controller.
71 Earth Earth ground connection for the main controller.
72 - 73 POWER SUPPLY 24VDC Supply power connection for 24VDC, polarity sensitive + to + and - to - must be observed.
74 - 75 STEPPER BATTERY Future option for battery backup to drive stepper valves to safe position during power failure.
NA Valve Open Close LED for open and close indication of attached stepper valve.
76 - 77 STEPPER VALVE W2 Winding 2 connection for stepper valve motor wiring harness.
78 - 79 STEPPER VALVE W1 Winding 1 connection for stepper valve motor wiring harness.
80 STEPPER+ 12V 12V for unipolar stepper motors.