Brochures and Data Sheets

System Application Guide SAG582127100
Spec. No. 582127100 (Model 722NBBB) Issue AA, May 7, 2013
Page 17 of 26
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Figure 2
IB2 (ACU+ Interface Board) Connections
IB2
(ACU+ Interface Board)
Switch settings must be in this position to interface with the ACU+ Controller
-
J12
*
RELAY
SW1
7
J2
J11
5 3
1
Relay Output Terminal Blocks
Digital Input Terminal Blocks
J9 J8 J7
J6
J5 J4 J3
8 6 4
2
8 7 6 5 4 3
2 1
+
IB2 Board (Top View)
NO
C
NC
NO C NC
NO
C
NC
NO C NC
NO
C
NC
NO C NC
NO
C
NC
NO C NC
5
3
1
46 2
5 3 1
46 2
5
3
1
46 2
5 3 1
46 2
5
3
1
46 2
5
3
1
46 2
5 3 1
46 2
Connector to ACU+
IB2 TEMP PROBRE 1
IB2 TEMP PROBE 2
* The ACU+ relay assigned to “Critical Summary” alarm (relay 1 by default)
will operate in the “Fail Safe Mode”. “Fail Safe Mode” means Relay 1 is
de-energized during an alarm condition, opening the contacts between the
C and NO terminals, and closing the contacts between the C and NC terminals.
The ACU+’s remaining seven (7) relays energize during an alarm condition, closing
the contacts between the C and NO terminals, and opening the contacts between
the C and NC terminals.
Not all I/O points are available for customer connection (some are used for factory
system connections).
J3-J9:
Wire Size Capacity: 16-26 AWG.
Recommended Torque: 2.2 in-lbs.
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