Nortel DMS-100 Series Maintenance Manual page 643

7 To measure the voltage of the failed battery string pair, type
>MEASURE PAIR n
and press the Enter key.
where
n
is the number of the string pair (0-3)
If voltage compared to
OPM_VOLT_TST_CHG
is less negative
is equal to or more negative
Note: OPMs with MTU default OPM_VOLT_TST_CHG = -509 or -50.9
Vdc for Eagle Picher and Yuasa batteries. OPM_VOLT_TST_LTU
ADJUSTMENT (Default=10) offsets OPMs with LTU default
OPM_VOLT_TST_CHG and truncates. -509+10=-499 Trunc(-499)=-490
or -49 Vdc for Eagle Picher and Yuasa batteries.
8 If the voltage is less negative than OPM_VOLT_TST_CHG, leave the battery
string pair open circuit and proceed to OPM site tests.
9 If the voltage is equal to or more negative than OPM_VOLT_TST_CHG, the
string can accept a charge. To return the battery string pair to service, type
>BSY bccdvr
and press the Enter key.
10 To return the battery string pair to service, type
>RTS bccdvr
and press the Enter key.
Note: If the open-circuit test marks the same string failed in the next 2
months, proceed directly to the OPM site tests.
11 To enable the automatic battery rotation and testing, type
>AUDIT ENABLE
and press the Enter key.
12 The inspection procedure is complete.
OPM routine maintenance procedures
Failure of post charge test
DMS-100 Family OPM Maintenance Manual XPM14 and up
Do
step 8
step 9
13-41
OPM
(end)