
Overview of faults and alarms
Faults and alarms
3-967
© Siemens AG 2012 All Rights Reserved
SINAMICS S110 List Manual (LH7), 06/2012, 6SL3097-4AP10-0BP3
Fault reactions
The following fault reactions are defined:
Table 3-2
Fault reactions
List
PROFId-
rive
Reaction
Description
NONE
-
None
No reaction when a fault occurs
Note:
When the "Basic positioner" function module is activated
(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
the tracking mode until the fault has been rectified and
acknowledged.
OFF1
ON/
OFF
Brake along the
ramp-function
generator down
ramp followed by
pulse inhibit
Closed-loop speed control (p1300 = 20, 21)
•
n_set = 0 is input immediately to brake the drive along
the ramp-function generator down ramp (p1121).
•
When zero speed is detected, the motor holding brake (if
parameters have been assigned for it) is closed (p1215).
The pulses are suppressed when the brake closing 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.
Closed-loop torque control (p1300 = 23)
•
The following applies to closed-loop torque control
mode:
Reaction as for OFF2
•
When the system switches to closed-loop 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 closing time
(p1217) expires.
OFF1_
DELAYED
-
As for OFF1, but
delayed
Faults with this fault reaction do not become effective until
after the delay time set in p3136.
The remaining time up to OFF1 is displayed in r3137.
OFF2
COAST
STOP
Internal/external
pulse inhibit
Closed-loop speed and torque control
•
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.