Page 34
© Copyright 2021 ABB. All rights reserved.
LEDs
Converter State
State
State
PMN
PMJ
OK
OK
OK
Green
Minor
Amber
PMN
Minor
Amber
PMN
Minor
Amber
PMN
Major
any
any
Red
PMJ
any
Major
any
Red
PMJ
any
any
Major
Red
PMJ
any
Unpowered
any
PMN
PMJ
Alarm Card Alarm States
Alarm states are ranked from low severity to high severity.
Alarm State
Severity
Major or PMJ
…………...
Highest
Minor or PMN
………….
Medium
None or OK
……………...
Lowest (no alarm)
Alarm states are aggregated and combined into successively larger representations:
Converter circuit states are aggregated into a Converter Card state.
Converter Card states and
-
48V Input Feed states are aggregated and combined into a Converter Shelf
state.
Converter Shelf states and Fan Shelf states are aggregated and combined into a Converter system
state.
•
System Alarm State
-
the highest alarm state within the system, including Converter Shelves and Fan Shelves.
•
Shelf Alarm State
-
the highest alarm state within the shelf, including Converter Cards and
-
48V Input Feeds, Fan
Shelf state (if wired), and Alarm Card I
2
C to RS
-
485 communication processor.
OK
No alarms are active –
all OK
PMN
Minor alarms only are active
PMJ
Major –
at least one major alarm is active
•
Fan Shelf Alarm State
–
the alarm state of the connected Fan Shelves. Each Fan Shelf has a single alarm that is
active when one or more fans have failed or when Fan Shelf DC voltage is low.
OK
No Fan Shelves have alarms are active –
all OK
Minor
One Fan Shelf has alarm active
Major
Two Fans Shelves have alarms active
•
Converter Card Alarm State
-
the highest alarm state of all Converter Cards within the shelf
OK
No Converter alarms are active –
all OK
Minor
at least one Minor Converter alarms only is active
Major
at least one Major Converter alarm is active
•
-
48V Input Feed Alarm State –
the alarm state of the four
-
48V shelf feeds:
-
Table 2.
OK
None
Minor
One input feed Low
Major
Multiple input feeds Low
See footnote on page 36
Summary of Contents for CPS2400U
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