Danfoss VLT Brook Crompton Motor FCM 300 Design Manual page 43

Programming
Function:
Read only parameter.
106 Rated motor speed
Value:
XX rpm - depends on the FC motor
Function:
Read only parameter.
117 Resonance damping
Value:
OFF - 100%
OFF%.
Function:
It is possible to optimise the resonance damping. The
grade of the influence is adjusted in this parameter.
The value may be set between 0% (OFF) and 100%.
100% corresponds to the unit dependent max. allowed
proportional gain. Default value is OFF.
Description of functionality:
The system torque is estimated based on the DC-link and
fed back to a proportional gain controller.
At a unit dependent level of active motor current the
controller is disabled.
Description of choice:
Set the grade of proportional gain for the torque feedback
between 0% (OFF) and 100%.
118 Resonance damping cut out
Value:
0-200%
Motor dependent
Function:
High-frequency resonance can be eliminated by setting
parameter 117 and 118.
Description of choice:
Adjust the percentage of load from where the resonance
damping function should no longer be active.
126 DC braking time
Value:
0.0 - 60.0 sec.
10.0 sec.
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
Description of choice:
Set the desired time.
127 DC brake cut-in frequency
Value:
0.0-f (parameter 202)
MAX
®
VLT DriveMotor FCM Series
DC braking see P132
Function:
This parameter is for setting the DC brake cut-in frequency
at which the DC braking voltage (parameter 132) is to be
[XX]
active, in connection with a Stop command.
Description of choice:
Set the desired frequency.
128
Value:
[OFF -100]
[OFF]
Function:
Read only parameter
Please refer to section FCM 300 Thermal protection.
132
Value:
Function:
DC braking:
If the stator in an asynchronous is supplied with DC
voltage, a braking torque will arise.
The braking torque depends on the selected DC braking
voltage.
For applying a braking torque by means of DC braking the
rotating field (AC) in the motor is exchanged with a
stationary field (DC)˙
The DC braking will be active when below cut in frequency
[0-200]
and stop is activated at the same time. P126, P127 and
P132 are used for the control of the DC braking.
The DC braking can also be activated directly by a digital
input.
Function:
The braking torque depends on the selected DC braking
voltage. The DC braking voltage is stated as a percentage
of maximum braking voltage.
Description of choice:
Set the desired voltage as a specified percentage of
maximum braking voltage.
[0-600]
133
[100]
Value:
Function:
You can set the motor voltage below the field weakening
point independently of the motor current. Use this
parameter to compensate too low starting torque.
The start voltage is the voltage at 0 Hz.
[0 -]
®
MG03BA02 - VLT is a registered Danfoss trademark
0.0 Hz = OFF
Motor thermal protection
No protection (NO PROTECTION)
DC braking voltage
0-100%
0%
Start voltage
0.00-100.00 V
Depends on motor
[0]
3 3
[0]
[0-100]
[0]
[0-10000]
41