ABB ACS180 - Page 203

Parameters 203
PID 40.01 Process PID output actual (output of the process
PID controller).
15
Maximum torque 2 30.24 Maximum torque 2.16
Other Source selection (see Terms and abbreviations). -
30.23 Minimum torque 2 Defines the minimum torque limit for the drive (in percent
of nominal motor torque) when
• the source selected by 30.18 Torq lim sel is 1, or
• 30.18 is set to Torque limit set 2
and
• 30.21 Min torque 2 source is set to Minimum torque 2.
See diagram at 30.18 Torq lim sel.
-300.0%
-1600.0…0.0% Minimum torque limit 2. See par.
46.03
30.24 Maximum torque 2 Defines the maximum torque limit for the drive (in percent
of nominal motor torque) when
The limit is effective when
• the source selected by 30.18 Torq lim sel is 1, or
• 30.18 is set to Torque limit set 2
and
• 30.22 Max torque 2 source is set to Maximum torque
2.
See diagram at 30.18 Torq lim sel.
300.0%
0.0…1600.0% Maximum torque limit 2. See par.
46.03
30.26 Power motoring limit 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%
30.27 Power generating limit 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%
30.30 Overvoltage control 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.
Enable
Disable Overvoltage control disabled. 0
Enable Overvoltage control enabled. 1
30.31 Undervoltage control 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.
Enable
Disable Undervoltage control disabled. 0
No. Name/Value Description Default
FbEq 16
ACS180 FW.book Page 203 Tuesday, March 9, 2021 2:25 PM