Trouble Shooting
Page 10 of 16
Doc. No.: 13S000411
Revision: A
Copyright © 2010 Rolls-Royce plc
2.6
Voltage Surveillance Alarms
The following alarms will be issued for voltage surveillance related faults:
Alarm Text
Cause, Effect and Action
PORT MP NC 220 Volt Failure U3 Cause: 220V AC Main supply failure.
Effect: Control system operate as normal
Action: Check connections and fuse. System still fully operational with 24V
Backup supply
PORT MP NC 24 Volt Failure U4
Cause: 24V DC in Backup supply failure
Effect: Control system operate as normal
Action: Check connections and fuse. System still fully operational with
220V AC Main supply
Summary of Contents for Helicon X3
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Page 8: ...Introduction Page 6 of 6 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...
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Page 30: ...System Description Page 16 of 16 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...
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Page 34: ...Delivery Specification Page 4 of 4 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...
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Page 112: ...Trouble Shooting Page 16 of 16 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...
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Page 118: ...Contact Information Page 6 of 6 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...
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Page 124: ...Spare Parts Page 6 of 6 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...
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Page 128: ...Tools Page 4 of 4 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...
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Page 132: ...Design Drawings Page 4 of 4 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...
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Page 136: ...Revision Page 4 of 4 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...
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Page 140: ...Subsuppliers Manuals Page 4 of 4 Doc No 13S000411 Revision A Copyright 2010 Rolls Royce plc...