Iob (Input/Output Board); Communication Cables - Carrier AquaEdge 19XR Controls Operation And Troubleshooting

PIC 5 CONTROL INTERFACE
DESCRIPTION
Communication
Compressor Run Contact
Compressor Start Contact
Compressor Start Relay
Compressor Transition Relay
Ground Fault Phase 1
Ground Fault Phase 2
Ground Fault Phase 3
Line Current C1
Line Current C2
Line Current C3
Line Voltage V1
Line Voltage V2
Line Voltage V3
Shunt Trip Relay
Starter Fault
VFD Speed Feedback
VFD Target Speed
IOB (Input/Output Board) —
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
ANALOG INPUT
0 Disable
1 0 to 5 VDC
2 4 to 20 mA
3 10 k (thermistor)
4 5 k (thermistor)
5 Ohm (Shift_Dis)
6 100 Ohm RTD
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
Carrier Service Call: 1-800-379-6484
1 - POWER SUPPLY CONNECTOR
2 - LEN CONNECTOR
3 - CCN CONNECTOR
4 - ETHERNET CONNECTOR
5 - USB CONNECTOR
Fig. 1 — PIC 5 Control Interface and Connectors
Table 1 — ISM Input/Output Descriptions
POINT NAME
COMM
RUN_AUX
STAR_AUX
COMP_SR
TRANS
GRFLT_31
GRFLT_23
GRFLT_12
LN_AMPS1 0 to 5 A (RMS)
LN_AMPS2 0 to 5 A (RMS)
LN_AMPS3 0 to 5 A (RMS)
LN_VOLT1 0 to 575 VAC
LN_VOLT2 0 to 575 VAC
LN_VOLT3 0 to 575 VAC
TRIPR
STARTFELT
0 to 5 V (default), or
VFD_IN
0 to 10 V (selectable)
VFD_OUT
The IOB is supplied
ANALOG OUTPUT
0 Disable
1 4 to 20 mA
2 0 to 10 VDC
3
5
TYPE PIN NUMBER
Dry Contact J7-A,B,C
Dry contact J2-11,12
Dry contact J2-9,10
Relay J9-1,2
Relay J9-3,4
0 to 5 V J5-1,2
0 to 5 V J5-3,4
0 to 5 V J5-5,6
J4-1,2
J4-3,4
J4-5,6
J3-1
J3-2
J3-3
Relay J9-5,6
Dry contact J2-7,8
J6-1,2
0 to 20 mA J8-1,2
operating in Remote mode. Fig. 2-5 show IOB wiring dia-
grams. Fig. 6-9 shows additional control wiring.
Communication Cables —
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:
USAGE
Intra-Building
High Temperature
Plenum
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.
3 2 1
4
PIC 5 BOTTOM VIEW
a19-2139
INPUT/OUTPUT
Input/Output
Input
Input
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
Input
Output
Input
Input
Output
The communication trans-
CABLE
Belden 8772
Belden 85240
Belden 89418