3
Table 1 — ISM Input/Output Descriptions
IOB (Input/Output Board) —
The IOB is supplied
from a 24 VAC supply reference to earth ground.
IOB CONFIGURATION — The input/output boards can be
configured for different types of input/output. If a an input or
output type is supported for the specific channel then it can be
modified in the Configuration Menu as shown in Table 2:
Table 2 — IOB Configuration
19XR6/7 IOB COMPONENTS AND WIRING — The com-
ponents listed in Tables 3-6 are available at the user’s termi-
nal block on the IOB. Some are available only if the unit is
operating in Remote mode. Fig. 2-5 show IOB wiring dia-
grams. Fig. 6-9 shows additional control wiring.
Communication Cables —
The communication trans-
mission cables have the following electrical characteristics:
• 2 signal conductors and one ground conductor of 20
AWG or larger, 100% shielded
• One tinned copper braid (65% coverage)
Recommended cables are shown below:
To avoid potential interference, route communication cables
between the starter and the chiller control panels as far away as
possible from high voltage cable and other likely disturbances.
Always separate communication cables from other cables and
always run wiring as directly as possible.
Fig. 1 — PIC 5 Control Interface and Connectors
a19-2139
123
45
PIC 5 BOTTOM VIEW
1 - POWER SUPPLY CONNECTOR
2 - LEN CONNECTOR
3 - CCN CONNECTOR
4 - ETHERNET CONNECTOR
5 - USB CONNECTOR
PIC 5 CONTROL INTERFACE
Carrier Service Call: 1-800-379-6484
DESCRIPTION POINT NAME TYPE PIN NUMBER INPUT/OUTPUT
Communication COMM Dry Contact J7-A,B,C Input/Output
Compressor Run Contact RUN_AUX Dry contact J2-11,12 Input
Compressor Start Contact STAR_AUX Dry contact J2-9,10 Input
Compressor Start Relay COMP_SR Relay J9-1,2 Output
Compressor Transition Relay TRANS Relay J9-3,4 Output
Ground Fault Phase 1 GRFLT_31 0 to 5 V J5-1,2 Input
Ground Fault Phase 2 GRFLT_23 0 to 5 V J5-3,4 Input
Ground Fault Phase 3 GRFLT_12 0 to 5 V J5-5,6 Input
Line Current C1 LN_AMPS1 0 to 5 A (RMS) J4-1,2 Input
Line Current C2 LN_AMPS2 0 to 5 A (RMS) J4-3,4 Input
Line Current C3 LN_AMPS3 0 to 5 A (RMS) J4-5,6 Input
Line Voltage V1 LN_VOLT1 0 to 575 VAC J3-1 Input
Line Voltage V2 LN_VOLT2 0 to 575 VAC J3-2 Input
Line Voltage V3 LN_VOLT3 0 to 575 VAC J3-3 Input
Shunt Trip Relay TRIPR Relay J9-5,6 Output
Starter Fault STARTFELT Dry contact J2-7,8 Input
VFD Speed Feedback VFD_IN
0 to 5 V (default), or
0 to 10 V (selectable)
J6-1,2 Input
VFD Target Speed VFD_OUT 0 to 20 mA J8-1,2 Output
ANALOG INPUT ANALOG OUTPUT
0 Disable 0 Disable
1 0 to 5 VDC 1 4 to 20 mA
2 4 to 20 mA 2 0 to 10 VDC
3 10 k (thermistor)
4 5 k (thermistor)
5 Ohm (Shift_Dis)
6 100 Ohm RTD
USAGE CABLE
Intra-Building Belden 8772
High Temperature Belden 85240
Plenum Belden 89418
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