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VLT
®
FCM Series
Programming
105 Motor current
(MOTOR CURRENT)
Value:
XX.X X A- depends on the FC motor.
[XXXX]
Function:
Read only parameter.
106 Rated motor speed
(MOTOR NOM. SPEED)
Value:
XX rpm - depends on the FC motor
[XX]
Function:
Read only parameter.
117 Resonance damping
(RESONANCE DAMP.)
Value:
OFF - 100%
[OFF -100]
✭
OFF %.
[OFF]
Function:
It is possible to optimise the resonance damping
in CT mode. The grade of the influence is
adjusted in this parameter.
The value may be set between 0% (OFF) and 100%.
100% corresponds to 50% reduction of U/F ratio.
Default value is OFF.
NB!:
Vibrations cannot be removed in all cases
at no load function.
Internal settings (fixed):
The resonance filter is active from 10% of
nominal speed and above.
In this case 5Hz and above.
Speed to go from 0 to nominal flux level: 500msSpeed
to go from 0 to nominal flux level: 500ms
Speed to go from nominal to 0 flux level: 500ms
Description of functionality:
The filter monitors the active motor current and
changes the motor voltage according to the
figure below. The filter reacts on levels referring
to the nominal motor current.
If the active motor current is below 10%, the motor
voltage will be decreased by the speed mentioned
above until the voltage reaches the setting for Par.
117. If the active motor current comes over 20% the
voltage will be increased by the above mentioned
speed. If the active motor current reaches 40%
the motor voltage will be increased immediately to
normal motor voltage. The reduction in motor voltage
depends on the parameter 117 setting.
Description of choice:
Set the grade of Motor current [Imact] influence
on the U/F ratio between 0% (OFF) and 100%.
100% corresponds to 50% reduction of U/F
ratio. Default value is OFF.
NB!:
A change of selection will not become
active until the mains voltage has been
disconnected and reconnected.
126 DC braking time
(DC BRAKING TIME)
Value:
0.0 - 60.0 sec.
[0-600]
✭
10.0 sec.
[100]
DC braking see P132
Function:
This parameter is for setting the DC braking time
for which the DC braking voltage (parameter
132) is to be active.
0.0 sec. = OFF
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.03.H3.02 - VLT is a registered Danfoss trademark
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