Publication
9387900990
Revision
A
First Printing: 02/05
Revised: 08/05
Page
3
Wiring requirements are subject to the specifications of the voltage regulator. Refer to the appropriate device
instruction manual for wire sizing, fuse recommendations, and terminal designations.
TROUBLESHOOTING
The ICRM contains no serviceable components. Replacement of the ICRM is recommended in the event of a
failure.
If the protected device is not receiving operating power, check the following:
• Verify that the ICRM connections between the power source and voltage regulator are correct.
• Confirm that the voltage supplied by the power source is sufficient to energize the voltage regulator.
If operating power is applied to the input terminals of the ICRM but voltage is not present at the output terminals,
remove operating power, disconnect all ICRM wiring, and perform the following procedure.
1. Connect a suitable ohmmeter across the A-IN and A-OUT terminals. The resistance measured across the IN
and OUT terminals should be approximately 2.0 ohms for the ICRM-7 and 0.5 ohms for the ICRM-15. If an
open circuit or short circuit is detected, the ICRM should be replaced.
2. Repeat Step 1 for the B-IN and B-OUT pair of terminals and the C-IN and C-OUT pair of terminals.
Figure 1. ICRM Dimensions
To Next Page
Loading...
