Lucent Technologies Lineage
®
2000 125A Ferroresonant Rectifier J85502C-1
7 - 2 Troubleshooting and Adjustments
Issue 8 July 1999
5. At the plant controller, remove the REG fuse associated
with the rectifier.
6. At the rectifier, loosen the locking screws and open the
door.
7. Locate the CM2 control board.
8. Disconnect J2A from CM2 by unlatching first, then
pulling the cable connector.
9. If the rectifier voltage was NOT at the desired float voltage
before it was turned Off, rotate the rectifier OUTPUT
VOLTS ADJ potentiometer fully counterclockwise.
10. At the ac service panel supplying power to the rectifier,
insert the input fuses assigned to the rectifier or turn the
circuit breaker On.
11. Turn the rectifier POWER switch On, and wait
approximately 30 seconds for the voltage to stabilize. The
rectifier is now ready to be tested off line.
Diagnostics and
Troubleshooting
Table 7-A lists possible problems, causes, and solutions that
may occur with the rectifier subsystems. Schematic Drawing,
SD-82659-01, referred to in the table, is shipped with the
J85502C-1 rectifier.
Caution
The REG fuse associated with the rectifier in the plant
controller must be removed before cable connector J2A is
disconnected or damage to the rectifier circuit pack may
result.
Support the CM2 control board with your hands when
disconnecting the cable leads or damage to the control board
may result.
Do NOT disconnect plant control cable connector J2A from
control board CM2 by pulling the cable.
