IF 632 Installation and Operation Manual
Release: 3 01/31/01
48
Relay Expander Card
RELAY 1
COMMON
ALARM
Terminal #
Designation
Description
1
1 NO
Normally open Alarm contact
2
1 NC
Normally closed Alarm contact
3
1 C
Alarm relay common contact 10A @ 30 VDC or 220
VAC resistive, fused @ 10 amps.
4
1 M
Alarm relay feedback point to monitor status of
controlled device
RELAY 2
COMMON
TROUBLE
Terminal #
Designation
* Relay is shown normally energized (normal
condition)
5
2 NC
Normally closed Trouble contact
6
2 NO
Normally open Trouble contact
7
2 C
Trouble relay common contact 10A @ 30 VDC or
220 VAC resistive, fused @ 10 amps.
8
2 M
Trouble relay feedback point to monitor status of
controlled device
RELAY 3
COMMON
SUPERVISORY
Terminal #
Designation
Description
9
3 NO
Normally open Supervisory contact
10
3 NC
Normally closed Supervisory contact
11
3 C
Supervisory relay common contact 10A @ 30 VDC
or 220 VAC resistive, fused @ 10 amps.
12
3 M
Supervisory relay feedback point to monitor status of
controlled device
RELAY 4
SPARE
Terminal #
Designation
Description
NOTE: When the City Tie is programmed in the Chicago
mode the spare relay will transfer during City Tie circuit
faults.
13
4 NO
Normally open spare contact
14
4 NC
Normally closed spare contact
15
4 C
Spare relay common contact 10A @ 30 VDC or 220
VAC resistive, fused @ 10 amps.
16
4 M
Spare relay feedback point to monitor status of
controlled device
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