Power alarm on MCC - How is it cleared?

[TelecomDept]

I have the following alarm – on an MCC
01 POWER y MINOR y 08/19/21:41 00/00/00:00

Red light on the TN775 in the maintenance slot next to the IPSI

test environment 01 results in
01 POWER 5 FAIL 8

No red lights on any rectifier module or BIU in the PDU, I’ve checked the power connections and they are good.

Is there a test or command I can run to clear this? I thought that several years ago I was told one but I have no notes. Is there a way to clear this without replacing the TN775?

 

[Mitch672]

It is probably the short holdover mini ups (5 minute holdover) built into the cabinet, it's batteries are probably beyond fried...



Mitch

AVAYA Certified Expert

 

[TelecomDept]

How do I check or test the short holdover mini ups and if it comes down to replacing these batteries, how is it done and can be it be done without replacing the whole PDU?

 

[Mitch672]

I am not very familiar with the older MCC cabinets, I just know that there is a holdover device built into the power supply, you may be able to replace the batteries, I don't know.

Mitch

AVAYA Certified Expert

 

[lopes1211]

can also try "test enviornment X" . may also need to add "long clear" on the end.

-CL

 

[4merAvaya]

Power Alarm information starts on page 1827.

Kevin

http://support.avaya.com/elmodocs2/comm_mgr/r2_2/pdfs/03_300190_3.pdf

 

[mikeydidit]

DEFINITY ECS Release 10
Maintenance for R10r 555-233-117
Issue 3
December 2001
Maintenance Object Repair Procedure
POWER 9-1488
9
Table 9-568. TEST #5 Battery & Battery Charger Query Test

8 FAIL NOTE:
For a Global AC MCC (J58890CH) use the procedures outlined in step 3.
There is a reserve power fault. A problem exists with the battery
charger or, less likely, the batteries. Also, this fault could be generated
if the charger is switched off or a battery is unplugged.
1. Replace the battery charger and the battery. The fault should
disappear.
! WARNING:
Always turn off the battery charger before replacing the batteries.
2. Rerun the test. If the test still fails, then SYSAM in a PPN or the
EPN MAINT (Maintenance) circuit pack in an EPN could be
reporting this condition incorrectly. Resolve all alarms on these
MOs and rerun the test. There are failures that can occur on the
SYSAM and EPN Maintenance circuit pack that will not be detected
by their respective maintenance, but which will cause many, if not
all, environment tests to fail. If many environment tests are failing,
the suspect circuit pack, depending on the system configuration,
should be replaced and the test rerun.
3. Procedures for a Global MCC (J58890CH):
a. Look to see if any “red” LEDs are “on” on any of the rectifier
modules or the BIU (Battery Interface Unit) located in the Power
Distribution Unit (J58890CH).
b. If the BTW (Battery Temp Warning) LED on the BIU is “on” check
the batteries for a over temp condition(a) if temp is normal(a)
replace the BIU, If the test still fails replace the battery in a small
battery system. For a large battery system escalate the problem.
c. If the BNA (Battery Not Available) LED is “on” check the battery
connections including connector J20.
More information continues.
Table 9-568. TEST #5 Battery & Battery Charger Query Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page
DEFINITY ECS Release 10
Maintenance for R10r 555-233-117
Issue 3
December 2001
Maintenance Object Repair Procedure
POWER 9-1492
9
a The equipment must be installed in a well-ventilated area. Maximum equipment performance is obtained at an
ambient room temperature between 40 and 120 degrees Fahrenheit (4 and 49 degrees Celsius) for short term
operation (not more than 72 consecutive hours or 15 days in a year) and up to 110 degrees Fahrenheit (43
degrees Celsius) for continuous operation.
8
(cont’d.)
FAIL
(cont’d.)
d. If you have an alarm and all LEDs are ok (PWR OK and BOK) on
the rectifier modules, and the BIU (Battery Interface Unit), make
sure the BIU and the RM0850 rectifiers are seated properly
(plugged in). If the BOK LED on the BIU is ok use the following
information to check the number of rectifiers serving this cabinet:
Number of carriers Number of rectifiers
per cabinet per cabinet
----------------------------|---------------------------------
1 2
2 3
3 3
4 4
5 4
If the number of rectifiers is correct replace the maintenance circuit pack in
the EPN or PPN.

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