Application Guide

Installation Instructions Section 5876
Spec. No. 582140000 (Models 802
NLDB, 802NLEB and 802NL-B) Issue AT, April 26, 2013
Chapter 4. Making Electrical Connections Page 4-17
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MCA Relay
Function
Channel #
Alarm
Name
Alarm
Configuration
Assigned to
Relay #…
installed in
Slot #…
of any Bay
1 Major Alarm
Emergency Stop Input Active,
Remote High Voltage
Shutdown Input Active,
System Voltage is Very Low,
System Battery On
Discharge, System High
Voltage #1 Alarm, System
High Voltage #2 Alarm, 1
System CB/Fuse Alarm, 2+
System CB/Fuse Alarm, 2+
PCU Failures 'Major' Type,
No PCU in Inventory
(installed), 1 Dist. Panel
Failure, 2+ Dist. Panels
Failures, No Dist. Panel in
Inventory (Installed), 1 Router
Failure, 2+ Router Failures,
No Router in Inventory
(installed), 1 Relay Board
Failure, 2+ Relay Board
Failures, No Relay Board in
Inventory (installed), High
Temp #1 Alarm, High Temp
#2 Alarm, Low Temp #1
Alarm, Low Temp #2 Alarm,
Temperature Sensor No
Signal, Controller (MCA)
Failure, Controller Initializing
1 7 and 3
2 Minor Alarm
1 PCU Failure 'Major' Type, 1
PCU Failure 'Minor' Type, 2+
PCU Failures 'Minor' Type,
Monitoring Does Not
Respond, Total Distribution
Load Alarm, Distribution
Group A Load Alarm,
Distribution Group B Load
Alarm, Display Does Not
Respond
2 7 and 3
3 AC Fail Alarm
AC Power Off to 1 PCU, AC
Power Off to 2+ PCUs, AC
Power Off to All PCUs
3 7 and 3
4 Circuit Breaker / Fuse Alarm
1 System CB/Fuse Alarm, 2+
System CB/Fuse Alarms
4 7 and 3
5 Battery on Discharge Alarm
System Battery
on Discharge Alarm
5 7 and 3
6 High Voltage Alarm #1
System High Voltage
#1 Alarm
6 7 and 3
Table 4-1A (cont'd on next page)
Default MCA Relay Function Channel Configurations and
Default MCA Customer Alarm Relay Assignments