Lucent Technologies Lineage
®
2000 ECS-12U Controller J85501E-2
Issue 3 July 1998 Acceptance Testing 5 - 9
4. Disconnect the lead from the resistor, and note that the
alarms retire and the NORM LED turns on.
5. Remove the resistor from TB101 pin 4, and connect it to
the Ringer Minor Alarm input (RMN) on pin 5 of TB101.
6. Touch the wire to the free end of the resistor. Again, the
NORM LED should extinguish and the following power
minor alarms should appear on the controller terminal
blocks or office alarm system.
PMNE, PMNA, and PMNV
7. Disconnect the lead and the resistor from both ends when
finished. Close the controller front panel.
Low Voltage
Battery
Disconnect Test
If the plant is not equipped with a low voltage disconnect
contactor, skip this test.
1. Identify the LV- lead at P501-6 (for -48V or -24V
controllers) or the LV+ lead at P501-8 (for +24V
controllers) of the CP5 LVD/Fuse Board. Follow this lead
through its wire form on the controller door to its
termination on a quick-disconnect tab terminal on the
battery bus of the plant distribution panel. Disconnect this
lead at the battery bus and observe the following:
• The LVD contactor opens.
• The LVD OPEN LED on the front of the CP5 card
activates.
• The MNF LED of the ECS-12U activates.
• Alarm contacts TB102/10-11 on CP1 of the ECS-12U
close.
2. Connect a 0-60V variable power supply from the plant
ground bus to the disconnected LV- (or LV+) lead, along
with a voltmeter. Turn on the power supply and adjust its
output to 48V (24V). Observe the following:
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