Danfoss FCM305 56 Instruction Manual page 58

133 Start voltage (START VOLTAGE)
Settings:
0.00 - 100.00 V
Depends on motor
Function:
You can set the motor voltage below the field
weakening point independently of the motor current.
Use this parameter to compensate for too low of
starting torque.
The start voltage is the voltage at 0 Hz.
NOTE!
If the start voltage is set too high, it can lead to
magnetic saturation and motor overheating; the
FCM 300 may trip. Therefore take care when using
the start voltage.
Description of choice:
Set the desired start voltage.
134 Start compensation
(START COMP.)
Settings:
0.0 - 300.0 %
100.0 %
Function:
The output voltage is compensated as a function of
the load.
NOTE!
If the value is too high the FCM 300 can trip due to
overcurrent.
Description of choice:
Enter a % value.
Rated start compensation = 100 %.
= General factory setting - also applying to spare part unit, H H H H H = HVAC setting, I I I I I = Industrial setting, ( ) = parameter
window text. [ ] = value for use in communication via serial communication port
9-4
FCM 300 Series
135 U/f ratio (U/F RATIO)
Settings:
[0-10000]
0.00 - 20.00 V/Hz
Motor dependent
Function:
The output voltage to the motor can be adjusted on
a linear basis from 0 to rated frequency.
136 Slip compensation
(SLIP COMP.)
Settings:
500.0 - +500.0 %
0%
H
[0-3000]
100.0 %
[1000]
Function:
The rated slip compensation (factory setting) is
calculated on the basis of the motor parameters.
In parameter 136 the slip compensation can be
adjusted in detail. Optimizing makes the motor
speed less load dependent. This function is not
active at the same time as variable torque
(parameter 101).
Description of choice:
Enter a % value of rated slip compensation.
MG.03.B6.2G - VLT is a registered Danfoss trademark
[0-2000]
[-5000 - +5000]
[0]
[1000]