Siemens SINAMICS DCM - Fault Reactions

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