ABB ACSM1 - Page 110

Parameters and firmware blocks
110
11.02 DC MAGN TIME FW block: START/STOP MODE (see above)
Defines the constant DC magnetising time. See parameter 11.01 START MODE. After the start
command, the drive automatically premagnetises the motor the set time.
To ensure full magnetising, set this value 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.
0…10000 ms DC magnetising time.
11.03 STOP MODE FW block: START/STOP MODE (see above)
Selects the motor stop function.
(1) COAST Stop by cutting of the motor power supply. The motor coasts to a stop.
WARNING! If the mechanical brake is used, ensure it is safe
to stop the drive by coasting. For more information on
mechanical brake function, see parameter group 35 MECH
BRAKE CTRL.
(2) RAMP Stop along ramp. See parameter group 25 SPEED REF RAMP.
11.04 DC HOLD SPEED FW block: START/STOP MODE (see above)
Defines the DC hold speed. See parameter 11.06 DC HOLD.
0…1000 rpm DC hold speed.
11.05 DC HOLD CUR REF FW block: START/STOP MODE (see above)
Defines the DC hold current in percent of the motor nominal current. See parameter 11.06 DC HOLD.
0…100% DC hold current.
Motor rated power Constant magnetising 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