Siemens SINAMICS S110 List Manual page 968

Faults and alarms
Overview of faults and alarms
Table 3-2 Fault reactions, continued
List PROFId-
rive
OFF3 QUICK
STOP
STOP1 -
STOP2 -
IASC/ -
DCBRAKE
ENCODER -
3-968
Reaction
Brake along the Closed-loop speed control (p1300 = 20, 21)
OFF3 down ramp
• n_set = 0 is input immediately to brake the drive along
followed by pulse
the OFF3 down ramp (p1135).
inhibit
• When zero speed is detected, the motor holding brake (if
parameters have been assigned for it) is closed. The
pulses are suppressed when the closing time of the
holding brake (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.
• "Switching on inhibited" is activated.
Closed-loop torque control (p1300 = 23)
• Changeover to speed-controlled operation and other
reactions as described for speed-controlled operation.
- Under development
• n_set = 0 is input immediately to brake the drive along
n_set = 0
the OFF3 down ramp (p1135).
• The drive remains in closed-loop speed control mode.
- • For synchronous motors, the following applies:
If a fault occurs with this fault reaction, an internal arma-
ture short-circuit is triggered.
The conditions for p1231 = 4 must be observed.
• For induction motors, the following applies:
If a fault occurs with this fault reaction, DC braking is
triggered.
DC braking must have been commissioned (p1232,
p1233, p1234).
Internal/external The fault reaction ENCODER is applied as a function of
pulse inhibit the setting in p0491.
(p0491)
Factory setting:
p0491 = 0 --> Encoder fault causes OFF2
Notice:
When changing p0491, it is imperative that the information
in the description of this parameter is carefully observed.
SINAMICS S110 List Manual (LH7), 06/2012, 6SL3097-4AP10-0BP3
Description
© Siemens AG 2012 All Rights Reserved