Siemens SINAMICS G120D List Manual page 769

Fault reactions
The following fault reactions are defined:
Table 3-2 Fault reactions
List PROFI-
drive
NONE -
OFF1 ON/
OFF
OFF1_ -
DELAYED
OFF2 COAST
STOP
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SINAMICS G120D List Manual (LH14), 01/2013
Response
None No response when a fault occurs.
Note:
With the "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
generator down
the ramp-function generator deceleration ramp (p1121).
ramp followed by
• When zero speed is detected, the motor holding brake (if
pulse inhibit
parameterized) is closed (p1215). The pulses are sup-
pressed when the brake application time (p1217)
expires.
Zero speed is detected if the actual speed drops below
the threshold (p1226) or if the monitoring time (p1227)
started when the speed setpoint <= speed threshold
(p1226) has expired.
Torque control (p1300 = 22, 23)
• The following applies for torque control:
Reaction as for OFF2
• When the system switches to torque control with p1501,
the following applies:
No separate braking reaction.
If the actual speed value drops below the speed thresh-
old (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
however delayed the delay time in p3136 has expired.
The remaining time up to OFF1 is displayed in r3137.
Internal/external Closed-loop speed and torque control
pulse inhibit
• 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.
Faults and alarms
Overview of faults and alarms
Description
3-769