Operating Instructions

SINAMICS G120 CU230P-2 Control Units

List Manual (LH9), 04/2014, A5E33838102B AA

657

4 Faults and alarms

4.1 Overview of faults and alarms

Acknowledging faults

The list of faults and alarms specifies how to acknowledge each fault after the cause has been

removed.

Table 4-3 Acknowledging faults

Acknowledgemen

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 Acknowledge by setting parameter:

p3981 = 0 --> 1

2 Acknowledge via binector inputs:

p2103

p2104

p2105

BI: 1. Acknowledge faults

BI: 2. Acknowledge faults

BI: 3. Acknowledge faults

3 Acknowledge via PROFIBUS control signal:

STW1.7 = 0 --> 1 (edge)

Note

• These faults can also be acknowledged by a POWER ON.

• If the cause of the fault has not been removed, the fault will continue to be displayed after

acknowledgement.

• Safety Integrated faults

The "Safe Torque Off" (STO) function must be deselected before these faults are acknowledged.

PULSE INHIBIT The fault can only be acknowledged when the pulses are inhibited (r0899.11 = 0).

The same options are available for acknowledging as described under acknowledge IMMEDIATELY.