ABB ACS180 User Manual

Parameters 153
21.02 Magnetization time Defines the pre-magnetization time when
• parameter 21.01 Start mode is set to Const time (in
vector motor control mode), or
• parameter 21.19 Scalar start mode is set to Const time
(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:
Note: This parameter cannot be changed while the drive
is running.
500 ms
0…10000 ms Constant DC magnetizing time. 1 = 1 ms
21.03 Stop mode 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 braking).
Ramp
Coast 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.
0
Ramp Stop along the active deceleration ramp. See parameter
group 23 Speed reference ramp or 28 Frequency
reference chain.
1
Torque limit Stop according to torque limits (parameters 30.19 and
30.20). This mode is only possible in vector motor control
mode.
2
21.04 Emergency stop 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 source.
Ramp stop
(Off1)
Ramp stop (Off1) 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.
0
No. Name/Value Description Default
FbEq 16
Motor rated power Constant magnetizing time
< 1 kW >
50 to 100 ms
1 to 10 kW >
100 to 200 ms
10 to 200 kW >
200 to 1000 ms
200 to 1000 kW >
1000 to 2000 ms
ACS180 FW.book Page 153 Tuesday, March 9, 2021 2:25 PM

ABB ACS180 Specifications

General

Product Type	DC Drive
Number of Phases	1 or 3
IP Rating	IP20
Communication Interfaces	Modbus RTU
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Operating Temperature	-10°C to +50°C
Storage Temperature	-40 to +70 °C
Relative Humidity	5 to 95 % non-condensing
Altitude	Up to 1000 m