Appendix C: Alarms And Relays; Alarm Relays; Alarms - ABB CPS6000 Product Manual

Appendix C: Alarms and Relays

Alarm Relays

The control unit is provided with six alarm relays; four to provide the actual alarm condition, and two to
provide the severity associated with the alarm. The severity relays transmit the either PMJ or PMN.
Each alarm is factory assigned a severity based on industry practices, however, they may be reassigned
to MAJ, MIN, or RO (Record Only). An alarm condition with the RO severity results in the system
controller transmitting the alarm without the severity. That is, neither MAJ (PMJ) nor MIN (PMN) is
transmitted with the alarm.
The four selectable alarm relays are called Alarm Relay 1 (ALM1) through Alarm Relay 4 (ALM4). Relays
are user definable in that the user may assign any combination of alarms from a given set of alarms.
The following table shows which alarms may be assigned along with their factory default settings.

Alarms

Table C-1 shows a list of all alarms along with their descriptions, default settings, ranges and/or
severity, and affected alarm relays and LEDs.
Alarm /
Description
Event
Alarm asserted from a
user configured event
on this input. The
alarm can be
programmed to be
Auxiliary 1
asserted either on a
closure or open to
Vminus. P5 on the
Distribution Module
control board.
Alarm asserted from a
user configured event
on this input. The
alarm can be
programmed to be
Auxiliary 2
asserted either on a
closure or open to
Vminus. P5 on the
Distribution Module
control board.
Alarm asserted from a
user configured event
on this input. The
alarm can be
programmed to be
Auxiliary 3
asserted either on a
closure or open to
Vminus. P5 on the
Distribution Module
control board.
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Default Range /
PMJ PMN
Setting Severity
Major/
Major Minor/
RO
Major/
Major Minor/
RO
Major/
Major Minor/
RO
Alarm Relays
Relay 1 Relay 2 Relay 3 Relay 4
LED LED
AUX
PMJ PMN NORM
MD
Red Yellow Green Red