User Instructions UM582127000
Spec. No. 582127000 (Model 721NPBB) Issue AC, January 2, 2013
Chapter 4. Troubleshooting and Repair Page 43
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to ensure that it cannot be pulled out of the terminal block. Repeat for each wire
to be reconnected.
13) Remove the grounding wrist strap.
14) Close the distribution cabinet’s front door. Turn the latch clockwise to secure the
door.
15) Enable the external alarms, or notify appropriate personnel that this procedure is
finished.
16) Ensure that there are no local or remote alarms active on the system.
Figure 4-11
IB2 (ACU+ Interface Board) Connector Locations
J3-J9:
Wire Size Capacity: 16-26AWG.
RecommendedTorque: 2.2 in-lbs.
-
J12
*RELAY
SW1
7
J2
J11
5 3 1
RelayOutput Terminal Blocks DigitalInput Terminal Blocks
J9 J8 J7 J6 J5 J4 J3
86 4 28 7 6 5 4 3 2 1
+
IB2 Board(Top View)
NO CNC
NO C NC
NO CNC
NO C NC
NO CNC
NO C NC
NO CNC
NO C NC
531
46 2
5 3 1
46 2
531
46 2
531
46 2
531
46 2
5 3 1
46 2
531
46 2
Connector
toACU+
IB2TEMP
PROBRE1
IB2TEMP
PROBE2
IB2 BoardAssembly