Overview Of Faults And Alarms - Siemens SINAMICS G120 List Manual

Fault reactions
The following fault reactions are defined:
Table 4-2 Fault reactions
List PROFIdrive
NONE -
OFF1 ON/
OFF
OFF1_ -
DELAYED
OFF2 COAST
STOP
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890
Reaction
None No response when a fault occurs.
Note:
With "Basic positioner" (r0108.4 = 1), the following applies:
When a fault occurs with fault reaction "NONE", an active traversing
task is interrupted and the system switches to tracking mode until the
fault has been rectified and acknowledged.
Brake along the Closed loop speed control (p1300 = 20, 21)
ramp-function
• n_set = 0 is input immediately to brake the drive along the ramp-
generator down
function generator ramp down (p1121).
ramp followed by
• When zero speed is detected, the motor holding brake (if
pulse inhibit
parameterized) is closed (p1215). The pulses are suppressed when
the brake application time (p1217) expires.
Zero speed is detected if the actual speed drops below the
threshold in p1226 or if the monitoring time (p1227) started when
speed setpoint <= speed threshold (p1226) has expired.
Torque control (p1300 = 22, 23)
• The following applies for closed-loop torque control:
Reaction as for OFF2.
• When the system switches to closed-loop torque control with p1501,
the following applies:
No separate braking reaction.
If the actual speed value drops below the speed threshold (p1226)
or the timer stage (p1227) has expired, the motor holding brake (if
one is being used) is closed. The pulses are suppressed when the
brake application time (p1217) expires.
As for OFF1, Faults with this fault response only become effective after the delay
however delayed time in p3136 has expired.
The remaining time up to OFF1 is displayed in r3137.
Internal/external Speed and torque control
pulse disable
• Instantaneous pulse suppression, the drive "coasts" to a standstill.
• The motor holding brake (if one is being used) is closed
immediately.
• Switching-on inhibited is activated.
4 Faults and alarms

4.1 Overview of faults and alarms

Description
993