ABB DriveIT ACH550-01 User Manual page 226

Code Description
4 =
TORQ BOOST
SPEED
• May be necessary in drives with high starting torque.
• Torque boost is only applied at start, ending when output
frequency exceeds 20 Hz or when output frequency is equal to
reference.
• In the beginning the motor magnetizes within the time
determined by the parameter 2103
current.
• See parameter 2110
5 =
FLYSTART
torque boost mode (
• Flying start routine is performed first and the motor is
magnetized. If the speed is found to be zero, the torque boost is
done.
2102 STOP FUNCTION
Selects the motor stop method.
1 =
COAST
The motor coasts to stop.
2 =
RAMP
• Deceleration ramp is defined by 2203
DECELER TIME
2103 DC MAGN TIME
Defines the pre-magnetizing time for the DC Magnetizing start
mode.
• Use parameter 2101 to select the start mode.
• After the start command, the drive pre-magnetizes the motor for
the time defined here, and then starts the motor.
• Set the pre-magnetizing time just long enough to allow full motor
magnetization. Too long a time heats the motor excessively.
2104 DC CURR CTL
Selects whether DC current is used for braking.
0 =
NOT SEL
1 =
DC BRAKING
• Enables DC Injection braking after modulation has stopped.
• If parameter 2102
after start is removed.
• If parameter 2102
after ramp.
2106 DC CURR REF
Defines the DC current control reference as a percentage of
parameter 9906 (
222
– Selects the automatic torque boost mode (
mode only).
TORQ BOOST CURR
+
TORQ BOOST
SCALAR SPEED
– Selects cutting off the motor power as the stop method.
– Selects using a deceleration ramp
2 (whichever is active).
– Disables the DC current operation.
– Enables the DC Injection Braking.
STOP FUNCTION
STOP FUNCTION IS
MOTOR NOM CURR
ACH550 User's Manual
Range
DC MAGN TIME
.
– Selects both the flying start and the
mode only).
1=COAST, 2=RAMP
DECELER TIME
0...10 s
0...2
is 1 (
COAST
2 (
RAMP
0%...100%
).
Parameter listing and descriptions
SCALAR
using DC
1 or 2206
), braking is applied
), braking is applied