List of faults and alarms
Faults and Alarms
3-1533
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
F07311 Bypass motor switch
Drive object: SERVO, VECTOR
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: Fault value: Bit field BYPASS_CONTACTOR_ERROR_STATE
Bit 1
BYPASS_CONTACTOR_ERR_FBK_ON_MISSING
Switch "Closed" feedback signal missing
Bit 2
BYPASS_CONTACTOR_ERR_FBK_OFF_MISSING
Switch "opened" feedback signal missing
Bit 3
BYPASS_CONTACTOR_ERR_TOO_SLOW
Switch feedback signal too slow:
After switching, the system waits for the positive feedback signal. If the feedback signal is received later than the
specified time, then a fault trip (shutdown) is issued.
Bit 6
BYPASS_CONTACTOR_ERR_BYPASS_INCONSISTENCY
Drive switch feedback signal is not consistent with the bypass state:
When powering-up or for STAGING, the drive switch is closed.
See also: p1260 (Bypass configuration), r1261 (Bypass control/status word), p1266 (Bypass, control command),
p1267 (Bypass changeover source configuration), p1269 (Bypass switch feedback signal), p1274 (Bypass switch
monitoring time)
Remedy: - check the transfer of the feedback signals.
- check the switch
F07312 Bypass LSS:
Drive object: SERVO, VECTOR
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: Fault value: Bit field BYPASS_CONTACTOR_ERROR_STATE
Bit 1
BYPASS_CONTACTOR_ERR_FBK_ON_MISSING
Switch "Closed" feedback signal missing
Bit 2
BYPASS_CONTACTOR_ERR_FBK_OFF_MISSING
Switch "opened" feedback signal missing
Bit 3
BYPASS_CONTACTOR_ERR_TOO_SLOW
Switch feedback signal too slow:
After switching, the system waits for the positive feedback signal. If the feedback signal is received later than the
specified time, then a fault trip (shutdown) is issued.
Bit 6
BYPASS_CONTACTOR_ERR_BYPASS_INCONSISTENCY
Line Side Switch feedback signal is not consistent with the bypass state:
When powering-up or for STAGING, the Line Side Switch is closed without this having been requested from the
bypass.
See also: p1260 (Bypass configuration), r1261 (Bypass control/status word), p1266 (Bypass, control command),
p1267 (Bypass changeover source configuration), p1269 (Bypass switch feedback signal), p1274 (Bypass switch
monitoring time)
Remedy: - check the transfer of the feedback signals.
- check the switch
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