Siemens SIMOTRAS 6SG7050 Operating Instructions Manual page 333

01.04
Fault
Cause as a function of fault value
No.
(r047.001, r949.001 or r949.009 with acknowledged error)
10.1.2.1 Supply faults
F001 Failure of electronics power supply
(active in all operating states)
Failure of the electronics supply voltage (terminals 5U1, 5W1, 5N1) in "RUN" state for longer than the "restart" time set in
parameter P086 or the electronics are operating on undervoltage.
Possible fault causes:
•
Line contactor has opened in "RUN" state
•
Brief supply failure
•
Supply voltage too low
Fault value:
1 Electronics supply voltage in "RUN" has been interrupted
for longer than setting in P086
2 Supply failure prewarning responds periodically
3 Supply failure prewarning is active for longer than 1.28 s
F002 Anti-clockwise field on power connections (U1, V1, W1)
(active in all operating states)
F004 Phase failure on power connections (U1, V1, W1)
(active in operating states of ≤ o4)
The supply voltage RMS value, calculated from the area of each supply half-wave (rectified average value * peak factor), must
be greater than the response value for phase failure monitoring
P353
P078.001 ∗
100%
The distance between two identical supply zero passages of a phase must not exceed 450 degrees.
If one of these two conditions remains unfulfilled for longer than the "restart time" set in P086, a fault message is activated.
After switch-on, the converter waits in operating states o4 and o5 together for a period not exceeding the setting in P089 for
voltage to appear at the power terminals before activating the fault message.
Possible fault causes:
•
Parameter P353 is incorrectly set
•
Line contactor has opened in operation
•
Fuse has blown in incoming power section supply
•
Interruption in a thyristor firing pulse cable (auxiliary cathodes at connectors X12, X14, X16 are voltage carriers).
Fault value:
1 Voltage failure has occurred in supply (U1, V1, W1) (when P086=0)
2 Delay time set in parameter P089 has expired in operating state o4
3 Fuse has blown in power section
4 Voltage failure has lasted longer than period set in P086 (if this is >0)
5 2-phase current (e.g. because a phase is missing)
6 The "Main contactor checkback" (control word 2 bit 31) [see also P691] did not switch to "1" before the time set in P095
ran out, or switched back to "0" during operation
F006 Undervoltage
(active in operating states of ≤ o4)
The voltage at terminals U1, V1 or W1 is lower than the response threshold for longer than the "restart time" set in P086.
Response threshold for supply voltage:
∗
P078.001 (1
Possible causes of fault
•
Line undervoltage
•
Monitoring values set too sensitively or incorrectly (P351, P078)
SIEMENS AG 6SG7000-0BA76
SIMOTRAS HD Operating Instructions
P351
+
)
100%
Description
Further information (r047.002 to r047.016)
r047 Index 002 to 016:
i002 Duration of actual supply failure in 1/10 seconds
-
-
[V1.8 and later].
Faults / alarms
10-3