Decentral Solutions
Description of choice:
The required % value can be selected in the interval
f
MIN
- f
MAX
. Values over 100 % are used if the
set point variations are only small.
452 Controller range
(PID CONTR. RANGE)
Value:
0 - 200 %
✭
10 %
Function:
This parameter is only active if in parameter
100
Configuration
the selection made is
Speed
regulation, closed loop
.
The controller range (bandwidth) limits the output from
the PID controller as a % of motor frequency f
M,N
.
Description of choice:
The required % value can be selected for motor
frequency f
M,N
. If the controller range is reduced the
speed variations will be less during initial tuning.
456 Brake Voltage Reduce
(BRAKE VOL REDUCE)
Value:
0 - 200 V
✭
0
Function:
The user sets the voltage by which the level for
resistor braking is reduced. It is only active when
resistor in parameter 400 is selected.
Description of choice:
The greater the reduction value, the faster the reaction
to a generator overload. Should only be used if there are
problems with overvoltage in the intermediate circuit.
NOTE
A change of selection will not become
active until the AC line voltage has been
disconnected and reconnected.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.90.F2.22 - VLT is a registered Danfoss trademark
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