
186 Parameters
Source selection (see
).
-
Defines the minimum torque limit for the drive (in
percent of nominal motor torque) when
• the source selected by
is 1, or
•
is set to
and
•
is set to
See diagram at
.
-300.0%
-1600.0…0.0%
Minimum torque limit 2.
See par.
Defines the maximum torque limit for the drive (in
percent of nominal motor torque) when
• the source selected by
•
is set to
and
•
is set to
See diagram at
.
300.0%
0.0…1600.0%
Maximum torque limit 2.
See par.
Defines the maximum allowed power fed by the
inverter to the motor in percent of nominal motor
power.
300.00%
0.00…600.00%
Maximum motoring power.
1 = 1%
Defines the maximum allowed power fed by the
motor to the inverter in percent of nominal motor
power.
-300.00%
-600.00…0.00%
Maximum generating power.
1 = 1%
Enables the overvoltage control of the intermediate
DC link. Fast braking of a high inertia load causes the
voltage to rise to the overvoltage control limit. To
prevent the DC voltage from exceeding the limit, the
overvoltage controller automatically decreases the
braking torque.
Note:
If the drive is equipped with a brake chopper
and resistor, or a regenerative supply unit, the
controller must be disabled.
Disable
Overvoltage control disabled.
0
Enable
Overvoltage control enabled.
1
Enables the undervoltage control of the intermediate
DC link. If the DC voltage drops due to input power
cut off, the undervoltage controller will automatically
decrease the motor torque in order to keep the
voltage above the lower limit. By decreasing the
motor torque, the inertia of the load will cause
regeneration back to the drive, keeping the DC link
charged and preventing an undervoltage trip until the
motor coasts to a stop. This will act as a power-loss
ride-through functionality in systems with high
inertia, such as a centrifuge or a fan.
Disable
Undervoltage control disabled.
0
Enable
Undervoltage control enabled.
1
No.
Name/Value
Description
Default
FbEq 16
Summary of Contents for ACS280
Page 1: ... ABB MACHINERY DRIVES ACS280 coldplate drives Firmware manual ...
Page 4: ......
Page 10: ...10 ...
Page 16: ...16 Control panel ...
Page 20: ...20 Start up ID run and use ...
Page 24: ...24 Default control connection ...
Page 88: ...88 Program features ...
Page 298: ...298 Parameters ...