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246 Parameters
Activates/deactivates the DC hold and post-magnetization
functions. See section
(page
).
Notes:
• These functions are only available in speed control in DTC
motor control mode (see page
).
• 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
Defines the DC hold speed. See parameter
(page
).
5.00 rpm
0.00 … 1000.00
rpm
DC hold speed.
See par.
Defines the DC hold current in percent of the motor nominal
current. See parameter
, and section
).
30.0%
0.0 … 100.0%
DC hold current.
1 = 1%
Defines the length of time for which post-magnetization is
active after stopping the motor. The magnetization current is
defined by parameter
.
See parameter
0 s
0…3000 s
Post-magnetization time.
1 = 1 s
Continuous
magnetization
command
Activates/deactivates (or selects a source that
activates/deactivates) continuous magnetization. See section
The magnetization current is calculated on the basis of flux
reference (see parameter group
).
Notes:
• This function is only available when ramping is the
selected stop mode (see parameter
), and
only in speed control in DTC motor control mode (see page
• Continuous magnetization causes the motor to heat up. In
applications where long magnetization times are required,
externally ventilated motors should be used.
• Continuous magnetization may not be able to prevent the
motor shaft from rotating during a long period if a constant
load is applied to the motor.
0 = Normal operation
1 = Magnetization active
Off
0.
0
No.
Name/Value
Description
Def
/
FbEq16
Bit
Value
0
1 = Enable DC hold. See section
Note:
The DC hold function has no effect if the start signal is switched off.
1
1 = Enable post-magnetization. See section
(page
).
Note:
Post-magnetization is only available when ramping is the selected stop mode (see
parameter
2…15
Reserved
Summary of Contents for ACS880-01 Series
Page 1: ...ABB industrial drives Firmware manual ACS880 ESP control program option N5600 ...
Page 4: ......
Page 12: ...12 Table of contents ...
Page 20: ...20 Introduction to the manual ...
Page 22: ...22 Using the control panel ...
Page 28: ...28 Control locations and operating modes ...
Page 146: ...146 Application macros ...
Page 502: ...502 Parameters ...
Page 606: ...606 Fault tracing ...
Page 662: ...662 Control chain diagrams ...