Operating Instructions

4 Faults and alarms
4.1 Overview of faults and alarms
SINAMICS G120 CU230P-2 Control Units
754 List Manual, 04/2018, A5E33838102
Acknowledging faults
The list of faults and alarms specifies how to acknowledge each fault after the cause has been
eliminated.
Table 4-3 Acknowledging faults
Acknowledgment Description
POWER ON The fault is acknowledged via a POWER ON (switch Control Unit off and on again).
Note
If this action has not removed the fault cause, the fault is displayed again immediately after power up.
IMMEDIATELY Faults can be acknowledged as follows:
1 Set acknowledgment by parameter:
p3981 = 0 --> 1
2 Acknowledging via binector inputs:
p2103
p2104
p2105
BI: 1 Acknowledge faults
BI: 2 Acknowledge faults
BI: 3 Acknowledge faults
3 Acknowledging via a PROFIdrive control signal:
STW1.7 = 0 --> 1 (edge)
Note
• These faults can also be acknowledged by a POWER ON operation.
• If this action has not eliminated the fault cause, the fault will continue to be displayed after
acknowledgment.
• Safety Integrated faults
The "Safe Torque Off" (STO) function must be deselected before these faults are acknowledged.
PULSE
SUPPRESSION
The fault can only be acknowledged when the pulses are inhibited (r0899.11 = 0).
The same options are available for acknowledging as described under IMMEDIATE acknowledgment.