Siemens SINAMICS S Series List Manual page 1426

Faults and Alarms
Overview of faults and alarms
Table 3-2 Fault reactions, continued
List PROFId-
rive
OFF3 QUICK
STOP
STOP1 -
STOP2 -
DCBRAKE -
ENCODER -
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Reaction
Brake along the Closed-loop speed control (p1300 = 20, 21)
OFF3 decelera-
• n_set = 0 is input immediately to brake the drive along
tion ramp fol-
the OFF3 deceleration ramp (p1135).
lowed by pulse
• When zero speed is detected, the motor holding brake
disable
(if parameterized) is closed. 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.
• 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.
- In preparation
• n_set = 0 is input immediately to brake the drive along
n_set = 0
the OFF3 deceleration ramp (p1135).
• The drive remains in closed-loop speed control mode.
- In preparation
Internal/external The fault reaction ENCODER is applied as a function of
pulse disable 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.
Description
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007