ABB ACS180 Firmware Manual page 153

No. Name/Value
21.02 Magnetization time
0...10000 ms
21.03 Stop mode
Coast
Ramp
Torque limit
21.04 Emergency stop mode
Ramp stop (Off1)
Description
Defines the pre-magnetization time when
• parameter 21.01 Start mode
vector motor control mode), or
• parameter 21.19 Scalar start mode
(in scalar motor control mode).
After the start command, the drive automatically
premagnetizes the motor for the set time. To ensure full
magnetizing, set this parameter to the same value as, or
higher than, the rotor time constant. If not known, use the
rule-of-thumb value given in the table below:
Motor rated power
< 1 kW
1 to 10 kW
10 to 200 kW
200 to 1000 kW
Note: This parameter cannot be changed while the drive
is running.
Constant DC magnetizing time.
Selects the way the motor is stopped when a stop
command is received.
Additional braking is possible by selecting flux braking
(see parameter 97.05 Flux
Stop by switching off the output semiconductors of the
drive. The motor coasts to a stop.
WARNING! If a mechanical brake is used, make
sure it is safe to stop the drive by coasting.
Stop along the active deceleration ramp. See parameter
group 23 Speed reference ramp
reference chain.
Stop according to torque limits (parameters
30.20). This mode is only possible in vector motor control
mode.
Selects the way the motor is stopped when an emergency
stop command is received.
The source of the emergency stop signal is selected by
parameter 21.05 Emergency stop
With the drive running:
• 1 = Normal operation.
• 0 = Normal stop along the standard deceleration ramp
defined for the particular reference type (see section
Reference ramping on page 52). After the drive has
stopped, it can be restarted by removing the
emergency stop signal and switching the start signal
from 0 to 1.
With the drive stopped:
• 1 = Starting allowed.
• 0 = Starting not allowed.
is set to Const time
is set to Const time
Constant magnetizing time
> 50 to 100 ms
> 100 to 200 ms
> 200 to 1000 ms
> 1000 to 2000 ms
braking).
or 28 Frequency
30.19
source.
Parameters 153
Default
FbEq 16
500 ms
(in
1 = 1 ms
Ramp
0
1
and 2
Ramp stop
(Off1)
0