Rectifier Voltage Check Opm - Nortel DMS-100 Series Maintenance Manual

Rectifier voltage check in an OPM
At the MAP terminal
1 To access the OPMPES MAP level, type
>MAPCI;MTC;PM;PES
and press the Enter key.
2 To post the correct alarm, type
>POST alarm_state
and press the Enter key.
where
alarm_state
is RED or AMBER
3 To measure the load bus, type
>MEASURE LOADB
and press the Enter key.
At the OPM cabinet
4 Use a voltmeter with at least 2% accuracy to adjust the rectifier voltage until
the rectifier voltage is within specification (-52.0 Vdc, ± 0.3 V). The currents
from the two rectifiers must be balanced. If the rectifier voltage was low
before adjustment, wait 24 h before you proceed with the battery capacity
testing.
5 The procedure is complete.
OPM routine maintenance procedures
DMS-100 Family OPM Maintenance Manual XPM14 and up
Rectifier voltage check
OPM
13-73
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