4 Faults and alarms
4.1 Overview of faults and alarms
SINAMICS G120 CU250S-2 Control Units
994
List Manual, 09/2017, A5E33842890
OFF3
QUICK
STOP
Brake along the
OFF3 down ramp
followed by pulse
disable
Closed loop speed control (p1300 = 20, 21)
•
n_set = 0 is input immediately to brake the drive along the OFF3
ramp down (p1135).
•
When zero speed is detected, the motor holding brake (if
parameterized) is closed. The pulses are suppressed when the
holding brake's closing 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.
Torque control (p1300 = 22, 23)
•
Changeover to speed-controlled operation and other reactions as
described for speed-controlled operation.
STOP2
-
n_set = 0
•
n_set = 0 is input immediately to brake the drive along the OFF3
ramp down (p1135).
•
The drive remains in closed-loop speed control.
IASC/DCBRK
-
-
•
For synchronous motors, the following applies:
If a fault occurs with this fault reaction, an internal armature 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 (p1230 to p1239).
ENCODER
-
Internal/external
pulse disable
(p0491)
The fault reaction ENCODER is applied as a function of the setting in
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.
Table 4-2
Fault reactions, continued
List
PROFIdrive
Reaction
Description
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Страница 726: ...2 Parameters 2 6 Quick commissioning p0010 1 SINAMICS G120 CU250S 2 Control Units 726 List Manual 09 2017 A5E33842890 ...
Страница 990: ...3 Function diagrams 3 26 Data sets SINAMICS G120 CU250S 2 Control Units 990 List Manual 09 2017 A5E33842890 ...
Страница 1242: ...A Appendix A 2 List of abbreviations SINAMICS G120 CU250S 2 Control Units 1242 List Manual 09 2017 A5E33842890 ...
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