The factory set values are for voltage controllable external rotor motors with 400 V / 50 Hz.
After verification of the motor specifications, adjustments are to be adapted, if applicable.
Motor rated voltage
(see Rating plate)
Setting
“Edgefrequency”
Setting
“Max. Frequency”
3 ~ 400 V, 50 Hz 48.5 Hz 50 Hz
3 ~ 400 V, 50/60 Hz 48.5 Hz 60 Hz
3 ~ 400 V, 60 Hz 57 Hz 60 Hz
Startvoltage
Startvoltage
The start voltage is used to apply enough torque to the motors to insure they will run at
low speed.
Attention! In order to prevent over current and unnecessarily high thermal load of the
motor, do not select to high a setting.
Adjustment range: 0 - 15 % (percentage of the maximum output voltage)
Factory setting: 0 %
VF quadratic
VF quadratic
U/f curve linear or square
Factory preprogrammed square characteristic curve “UF square” = “ON” for the
operation of voltage controllable fans.
For operation with linear curve “UF quadratic” = “OFF ”
8.6.4 Setting for Rampup time and Rampdown time
By separate menus for Rampup time and Rampdown time an adjustment is possible to individual
system conditions.
This function is switched behind the actual controller function.
Rampup time
Rampup time
Time setting in which the automatic controller output from 0 % to 100 % rises.
Setting range: 0...250 sec.
Factory setting: 10 / 20 / 30 / 40 sec. (depending on device type)
Rampdown time
Rampdown time
Time setting in which the automatic controller output from 100 % to 0 % reduces.
Setting range: 0...250 sec.
Factory setting: 10 / 20 / 30 / 40 sec. (depending on device type)
To Next Page
