ABB ACS880 Firmware Manual page 246

246 Parameters
No. Name/Value
21.11 Post magnetization
time
0...3000 s
21.12 Continuous
magnetization
command
Off
On
Other [bit]
21.13 Autophasing mode
Turning
Standstill 1
Standstill 2
Turning with Z-pulse This mode is used to observe the zero pulse signal of the
Description
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
See parameter 21.08 DC current
Post-magnetization time.
Activates/deactivates (or selects a source that
activates/deactivates) continuous magnetization. See
section Continuous magnetization
The magnetization current is calculated on the basis of flux
reference (see parameter group
Note:
• This function is available only when
Ramp and DTC motor control mode is in speed control
(see page 43).
• 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 prevent the motor
shaft from rotating for a long period if a constant load is
applied to the motor.
0 = Normal operating
1 = Magnetization is active
0.
1.
Source selection (see Terms and abbreviations
152).
Selects the way autophasing is performed.
See section Autophasing
This mode gives the most accurate autophasing result. This
mode can be used, and is recommended, if the motor is
allowed to rotate during the ID run and the start-up is not
time-critical.
Note: This mode will cause the motor to rotate. The load
torque must be less than 5%.
Faster than the Turning
motor will not rotate.
An alternative standstill autophasing mode that can be used
if the Turning mode cannot be used, and the
mode gives erratic results. However, this mode is
considerably slower than
pulse encoder and when other modes do not give a result.
The motor turns until a zero pulse is detected.
reference.
control.
(page 105).
97 Motor control).
21.03 Stop mode
on page 100.
mode, but not as accurate. The
Standstill 1
Standstill 1.
Def/FbEq16
0 s
1 = 1 s
Off
=
0
1
on page -
Turning
0
1
2
3