Fault Reactions - Siemens SINAMICS DCM List Manual

Fault reactions

The following fault reactions are defined:
Table 4-2 Fault reactions
List PROFIdrive
NONE -
OFF1 ON/
OFF
OFF2 COAST
STOP
OFF3 QUICK
STOP
STOP2 -
IASC/
DCBRAKE
ENCODER
SINAMICS DCM
List Manual (LH8), 02/2015, 6RX1800-0ED76
Reaction
None No reaction when a fault occurs.
Brake along the Closed-loop speed control (p50084 = 1)
ramp-function
• n_set = 0 is input immediately to brake the drive along the ramp-
generator down
function generator down ramp.
ramp followed by
• When zero speed is detected, the motor holding brake (if
pulse inhibit
parameterized) is closed. The pulses are suppressed when the
closing time (p50088) expires.
Zero speed is detected when the actual speed value falls below the
speed threshold (p50370).
Closed-loop torque control (p50084 = 2)
• The following applies for closed-loop torque control:
Reaction as for OFF2.
Internal/external Closed-loop speed and torque control
pulse inhibit
• Immediate pulse suppression, the drive "coasts" to a standstill.
• Switching on inhibited is activated.
Brake along the Closed-loop speed control (p50084 = 1)
OFF3 down ramp
• n_set = 0 is input immediately to brake the drive along the OFF3
followed by pulse
down ramp (p50296).
inhibit
• When zero speed is detected, the motor holding brake (if
parameterized) is closed. The pulses are suppressed when the
holding brake's closing time (p50088) expires.
Zero speed is detected when the actual speed value falls below the
speed threshold (p50370).
• Switching on inhibited is activated.
Closed-loop torque control (p50084 = 2)
• Reaction as for OFF2.
OFF2 For SINAMICS DCM, these fault reactions have the same effect as for
OFF2.
4 Faults and alarms
4.1 Overview of faults and alarms
Description
859