Application Guide

Installation Instructions Section 5876
Spec. No. 582140000 (Models 802
NLDB, 802NLEB and 802NL-B) Issue AT, April 26, 2013
Chapter 5. Installing the Rectifiers and Initially Starting the System Page 5-27
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Checking Emergency Shutdown and Fire Alarm Disconnect
Caution: This procedure may interrupt power to the load. Perform this test only
during system initial startup and checkout, or when a load is not
connected to the system.
Procedure
1) Apply an emergency shutdown and fire alarm disconnect signal to the system.
a) Requirement: The Rectifiers inhibit.
b) Requirement: All Rectifier “FAIL” indicators go red.
c) Requirement: MCA “MAJOR” indicator flashes red, if battery is connected
to the system.
d) Requirement: MCA displays EMERGENCY STOP INPUT ACTIVE and ###
PCUs HAVE FAILED, if battery is connected to the system.
e) Requirement: External alarms activate (if configured).
2) Remove the emergency shutdown and fire alarm disconnect signal from the
system, and on each Rectifier place the Standby/Operate switch to the "standby"
position and then back to the I "operate" position.
a) Requirement: The Rectifiers are restored.
b) Requirement: All Rectifier “FAIL” indicators go out.
c) Requirement: MCA “MAJOR” indicator goes out.
d) Requirement: MCA displays SYSTEM OK message.
e) Requirement: External alarms reset (if configured).
Checking Remote Test/Equalize
Note: Test/Equalize Mode requires Power Share to be turned off.
Procedure
1) Apply a remote test/equalize signal to the system.
a) Requirement: System output voltage goes to the test/equalize setting.
b) Requirement: MCA TEST/EQ indicator goes yellow.
c) Requirement: External test/equalize alarms activate (if configured).
2) Remove the remote test/equalize signal from the system.
a) Requirement: System output voltage goes to the float setting.
b) Requirement: MCA TEST/EQ indicator goes out.
c) Requirement: External test/equalize alarms reset (if configured).
Checking MCA Audible Alarm and MCA Audible Alarm Cutoff
Procedure
1) Place the Standby/Operate switch on a Rectifier installed in the system to the
"standby" position.
a) Requirement: External MCA audible alarm sounds.
b) Requirement: Other alarms activate. Disregard them here. They will be
confirmed in a later check.