21 Start/Stop - ABB ACS150 series User Manual

Parameters in the Long parameter mode
Index Name/Selection
2008 MAXIMUM FREQ
0.0...500.0 Hz
2020 BRAKE CHOPPER
0 = INBUILT
1 = EXTERNAL

21 START/STOP

2101 START FUNCTION
1 = AUTO
2 = DC MAGN
4 = TORQ BOOST
6 = SCAN START
7 = SCAN+BOOST
2102 STOP FUNCTION
1 = COAST
2 = RAMP
Description
Defines the maximum limit for the drive output frequency.
Maximum frequency. See parameter
Selects the brake chopper control.
Internal brake chopper control.
Note: Ensure the brake resistor(s) is installed and the overvoltage control is
switched off by setting parameter
(DISABLE).
External brake chopper control.
Note: The drive is compatible only with ABB ACS-BRK-X brake units.
Note: Ensure the brake unit is installed and the overvoltage control is
switched off by setting parameter
(DISABLE).
Start and stop modes of the motor
Selects the motor starting method.
Frequency reference ramps immediately from 0 Hz.
The drive pre-magnetizes the motor with DC current before the start.
The pre-magnetizing time is defined by parameter
Note: Starting the drive connected to a rotating motor is not possible when 2
(DC MAGN) is selected.
WARNING! The drive starts after the set pre-magnetizing time has passed
even if the motor magnetization is not completed. In applications where a full
break-away torque is essential, always ensure that the constant magnetizing
time is long enough to allow generation of full magnetization and torque.
Torque boost should be selected if a high break-away torque is required.
The drive pre-magnetizes the motor with DC current before the start.
The pre-magnetizing time is defined by parameter
Torque boost is applied at start. Torque boost is stopped when output
frequency exceeds 20 Hz or when it is equal to the reference value. See
parameter 2110 TORQ BOOST CURR.
Note: Starting the drive connected to a rotating motor is not possible when 4
(TORQ BOOST) is selected.
WARNING! The drive starts after the set pre-magnetizing time has passed
although the motor magnetization is not completed. In applications where a
full break-away torque is essential, always ensure that the constant
magnetizing time is long enough to allow generation of full magnetization and
torque.
Frequency scanning flying start (starting the drive connected to a rotating
motor). Based on frequency scanning (interval
FREQ...2007 MINIMUM FREQ) to identify the frequency. If frequency
identification fails, DC magnetization is used. See selection 2 (DC MAGN).
Combines frequency scanning flying start (starting the drive connected to a
rotating motor) and torque boost. See selections 6 (SCAN START) and 4
(TORQ BOOST). If frequency identification fails, torque boost is used.
Selects the motor stop function.
Stop by cutting off the motor power supply. The motor coasts to stop.
Stop along a ramp. See parameter group
2007 MINIMUM FREQ.
2005 OVERVOLT CTRL to selection 0
2005 OVERVOLT CTRL to selection 0
2103 DC MAGN TIME.
2103 DC MAGN TIME.
2008 MAXIMUM
22 ACCEL/DECEL.
Actual signals and parameters
99
Def
E: 50.0 Hz /
U: 60.0 Hz
0 = INBUILT
1 = AUTO
1 = COAST