ABB ACS180 Firmware Manual page 156

156 Parameters
No. Name/Value
21.08 DC current control
Bit Name
0 DC hold
1 Post-
magnetization
2 DC brake
3...15 Reserved
0b0000...0b1111
21.09 DC hold speed
0.00...1000.00 rpm
21.10 DC current reference
0.0...100.0%
21.11 Post magnetization
time
0...3000 s
21.14 Pre-heating input
source
Off
On
DI1
DI2
DI3
Description
Activates/deactivates the DC hold and post-magnetization
functions. See section DC magnetization
Note: 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.
Value
1 = DC hold. See section
Note: The DC hold function has no effect if the start signal is switched
off.
1 = Post-magnetization. See section
Note: Post-magnetization is only available when ramping is the selected
stop mode (see parameter
1 = Enable DC brake.
DC magnetization selection.
Defines the DC hold speed in speed control mode. See
parameter 21.08 DC current
on page 66.
DC hold speed.
Defines the DC hold current in percent of the motor
nominal current. See parameter
and section DC magnetization
After 100 s post-magnetization time, the maximum
magnetization current is limited to the magnetization
current corresponding to the actual flux reference.
DC hold current.
Defines the length of time for which post-magnetization is
active after stopping the motor. The magnetization current
is defined by parameter
See parameter 21.08 DC current control
Post-magnetization time.
Selects the source for triggering pre-heating for the motor.
The status of the pre-heating is shown as bit 2 of
Drive status word 3.
Notes:
• The heating function requires that STO is not triggered.
• The heating function requires that the drive is not
faulted.
• Pre-heating uses DC hold to produce current.
0. Pre-heating is always deactivated.
1. Pre-heating is always activated when the drive is
stopped.
Digital input DI1 (10.02 DI delayed
Digital input DI2 (10.02 DI delayed
Digital input DI3 (10.02 DI delayed
on page 66.
DC hold on page 66.
Post-magnetization
21.03 Stop mode).
control, and section
21.08 DC current
on page 66.
21.10 DC current reference.
status, bit 0).
status, bit 1).
status, bit 2).
Default
FbEq 16
0b0000
on page 67.
1 = 1
5.00 rpm
DC hold
See par.
46.01
30.0%
control,
1 = 1%
0 s
1 = 1 s
Off
06.21
0
1
2
3
4