Download EN / ACS880 primary control program firmware manual

Parameters 177
No.
Name/Value
Description
Def/FbEq16
30.14
Maximum
frequency
Defines the maximum allowed frequency.
WARNING! This value must not be lower than 30.13
Minimum frequency.
50.00 Hz
-500.00 … 500.00
Hz
Maximum frequency.
See par.
46.02
Maximum current
Defines the maximum allowed motor current.
0.00 A
0.00 … 30000.00 A
Maximum motor current.
1=1A
Minimum torque
Defines the minimum torque limit for the drive (in percent of
nominal motor torque).
-300.0%
30.17
30.19
30.20
30.26
30.27
30.30
30.31
-1600.0 … 1600.0% Minimum torque.
See par.
46.03
Maximum torque
300.0%
Defines the maximum torque limit for the drive (in percent of
nominal motor torque).
-1600.0 … 1600.0% Maximum torque.
See par.
46.03
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%
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%
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
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
Enable
Undervoltage control enabled.
1
31
31 Fault functions
Settings that define the behavior of the drive upon fault
situations.
31.01
External event 1
source
Defines the source of external event 1. See also parameter
31.02 External event 1 type.
0 = Trigger event
1 = Normal operation
Inactive
(true)
Active (false)
0.
0
Inactive (true)
1.
1