363-205-401
Power Up:
Issue 7, March 1997
Page 1 of 4
DLP-501
Install Load Distribution Unit (LDU) in Power Shelf
SUMMARY: Insert LDU into power shelf. Measure 105-129 V AC on LDU faceplate.
If required, install order wire build-out resistance module (ED7C613-30, G2) in LDU
or miscellaneous pair panel assembly. Set order wire impedance switches.
1.
Get one LDU and, if required, one ED7C613-30, G2 order wire build-out resis-
tance module and inspect for possible physical damage.
2.
Insert LDU into LDU slot in power shelf.
3.
Condition DMM to measure AC volts.
4.
At LDU, connect DMM test leads to AC and GND jacks.
5.
Does DMM indicate between 105 and 129 volts?
If YES, then proceed to Step 13.
If NO, then continue with Step 6.
6.
Check AC power cord connections at rear of power shelf and AC power con-
nection to dual bank assembly.
7.
Has AC power cord been properly connected and is AC connection to dual
bank assembly present?
If YES, then continue with Step 8.
If NO, then refer trouble to installation group.
8.
Replace LDU.
9.
At LDU, connect DMM test leads to AC and GND jacks.
10. Does DMM indicate between 105 and 129 volts?
If YES, then proceed to Step 13.
If NO, then continue with Step 11.
11. Replace LDU with LDU removed previously.
