Parameters 193
21.08 DC current control Activates/deactivates the DC hold and post-magnetization
functions. See section DC magnetization (page 77).
Notes:
• These functions are only available in speed control in
DTC motor control mode (see page 53).
• DC magnetization causes the motor to heat up. In
applications where long DC magnetization times are
required, externally ventilated motors should be used. If
the DC magnetization period is long, DC magnetization
cannot prevent the motor shaft from rotating if a
constant load is applied to the motor.
0000b
0000b…0011b DC magnetization selection. 1 = 1
21.09 DC hold speed Defines the DC hold speed. See parameter 21.08 DC
current control, and section DC hold (page 77).
5.00 rpm
0.00…1000.00 rpm DC hold speed. See par.
46.01
21.10 DC current reference Defines the DC hold current in percent of the motor
nominal current. See parameter 21.08 DC current control,
and section DC magnetization (page 77).
30.0%
0.0…100.0% DC hold current. 1 = 1%
21.11 Post magnetization
time
Defines the length of time for which post-magnetization is
active after stopping the motor. The magnetization current
is defined by parameter 21.10 DC current reference.
See parameter 21.08 DC current control.
0 s
0…3000 s Post-magnetization time. 1 = 1 s
No. Name/Value Description Def/
FbEq16
Bit Value
0 1 = Enable DC hold. See section DC hold (page 77).
Note: The DC hold function has no effect if the start signal is switched off.
1 1 = Enable post-magnetization. See section Post-magnetization (page 77).
Note: Post-magnetization is only available when ramping is the selected stop
mode (see parameter 21.03 Stop mode).
2…15 Reserved
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