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Figure 8: Wiring battery backup with built-in relay for fault output (AC power fail)
Note:
For power supply P/N 300377001, the low battery trip point is 11.0 VDC; the AC power fail trip point is 12.6 VDC. For
other power supplies, refer to the manufacturer's specifications.
Troubleshooting
Power problems
Problem:
The M5 does not power up correctly.
Resolution:
Verify that the +5V and +12V LEDs on the
Power/Communications Board are on. See Figure 1. If
these LEDs are not on, do the following:
1.
Use a voltmeter to check the power supply output. It
should read 12 to 15 VDC. If there is no output, make
sure the power supply is not on a switched outlet. Be
sure the circuit breaker for the power supply is not
tripped.
2.
Be sure connector J6 is properly seated in the board.
3.
Make sure the Power/Communications Board is
seated properly into the backplane and that no pins
have been bent on J1, the 48-pin connector.
Caution:
Replace the fuse with one of the same type and
rating. Do not power the unit back on until you locate and
correct the problem. Complete all parts of this step.
4.
Remove the Power/Communications Board and
inspect the fuse. If the fuse is blown, replace it.
5.
Make sure that the wiring connections from the
power supply to the Power/Communications Board
are not reversed. If these connections are okay,
continue to step 6.
P/N 460639001B •ISS 21JUN09
6.
Disconnect connector J6 from the
Power/Communications Board. Use an ohmmeter to
check the resistance between pins 3 and 4. If the
resistance is less than 200 ohms, there is a short
from power to ground. Isolate the fault as follows:
•
Remove all boards from the backplane except
the Power/Communications and PXNplus CPU
Boards. Add the boards one at a time while
measuring the resistance between J6 pins 3 and
4. If the resistance falls below 200 ohms when a
board is added, that board is faulty. Remove the
faulty board and continue checking the
remaining boards.
•
Insert a faulty board and remove the connectors,
one by one, until the fault condition disappears
(resistance goes above 200 ohms). Trace out the
wiring on these connectors to find and correct
the problem.
Contacting technical support
You can reach technical support by phone from 8 a.m. to
8 p.m. EST, Monday through Friday.
GE Security
United States: 1-888-GE SECURITY (1-888-437-3287)
Asia: 852-2907-8108
Australia: 61-3-9259-4700
Europe: 48-58-326-22-40
Latin America: 503-885-5700
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