Application Guide

Table Of Contents
Section 5877 User Instructions
Issue AQ, January 15, 2013 Spec. No. 582140000 (Models 802NLDB, 802NLEB and 802NL-B)
Page 3-6 Chapter 3. System Operating Procedures
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MAJOR
(Indicator)
Flashes red if any condition listed below occurs.
AC fail on two or more Rectifiers.
Rectifier fail alarm activates on two or more Rectifiers.
Battery On Discharge alarm activates.
Very Low Voltage alarm activates.
High Voltage Alarm 1 activates.
High Voltage Alarm 2 activates.
Emergency Stop or Remote HVS activated.
If any system distribution fuse or circuit breaker opens.
Any High or Low Temperature Alarm activates.
Any Router, Distribution, MCA Relay, or MCA I/O circuit card alarm
activates.
Duplicate Rectifier, Router, Distribution, MCA Relay, or MCA I/O circuit
card reference designation.
System component cannot be identified.
MCA Hardware/Software failure.
MCA Initializing.
MINOR
(Indicator)
Illuminates red if any condition listed below occurs.
Rectifier fail alarm activates on any single Rectifier.
If the over-current alarm activates.
Loss of communication to the display or LMS.
AC
(Indicator)
Illuminates green if AC input voltage to all Rectifiers is greater than the preset
non-adjustable low AC input voltage inhibit, less than the preset non-
adjustable high AC input voltage inhibit, and the Standby/Operate switch on
each Rectifier is in the I "operate" position. Illuminates red if AC input voltage
to any Rectifier decreases below or increases above the respective inhibit
value.
Danger: In standby mode, AC input power IS connected to the Rectifier.
TEST/EQ
(Indicator)
Illuminates yellow when the system is placed in the test/equalize mode, locally
or remotely.
MCA Display
Refer to Chapter 2. Navigating the MCA for MCA Display descriptions.
Surge Suppression Alarms
(available only if a Surge Suppression Option is furnished)
If a surge suppression assembly operates, the MCA displays a "Binary Input Customer
Text Message" in the I/O Board Alarm Detail Message. If you wish to change the default
message, refer to the " SETTING MCA CUSTOM TEXT MESSAGES " in this chapter.
"MCA Customer Alarm Relays" may also be programmed to provide an external alarm.
Note that a Surge Suppression Alarm is active when there is NO AC power, and
resets when AC power is supplied.