ABB ACS580 - Page 204

200 Parameters
21.08 DC current control Activates/deactivates the DC hold and post-magnetization
functions. See section DC magnetization (page 115).
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.
0000b
0000b…0011b DC magnetization selection. 1 = 1
21.09 DC hold speed Defines the DC hold speed in speed control mode. See
parameter 21.08 DC current control, and section DC hold
(page 115 ).
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 115).
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
21.14 Pre-heating input
source
Selects the source for controlling pre-heating for the motor.
The status of the pre-heating is shown as bit 2 of 06.21 Drive
status word 3.
Notes:
• The heating function requires that STO is not triggered.
• The heating function requires that the drive is not faulted.
Off
Off 0. Pre-heating is always deactivated. 0
On 1. Pre-heating is always activated when the drive is stopped. 1
DI1 Digital input DI1 (10.02 DI delayed status, bit 0). 2
DI2 Digital input DI2 (10.02 DI delayed status, bit 1). 3
DI3 Digital input DI3 (10.02 DI delayed status, bit 2). 4
DI4 Digital input DI4 (10.02 DI delayed status, bit 3). 5
DI5 Digital input DI5 (10.02 DI delayed status, bit 4). 6
DI6 Digital input DI6 (
10.02 DI delayed status, bit 5). 7
Supervision 1 Bit 0 of 32.01 Supervision status (see page 248). 8
Supervision 2 Bit 1 of 32.01 Supervision status (see page 248). 9
No. Name/Value Description Def/FbEq16
Bit Value
0 1 = Enable DC hold. See section DC hold (page 115 ).
Note: The DC hold function has no effect if the start signal is switched off.
1 1 = Enable post-magnetization. See section Settings (page 116 ).
Note: Post-magnetization is only available when ramping is the selected stop mode (see
parameter 21.03 Stop mode).
Note: Post-magnetization with scalar control is not supported at the moment.
2…15 Reserved
ACS580 FW.book Page 200 Wednesday, September 21, 2016 9:48 PM