Setting For Rampup Time And Rampdown Time - Helios FU Comfort Sinus Manuel De Montage Et D'utilisation

Installation and Operating Specification FU Comfort Sinus
Due to technical reasons the output voltage amounts to approx. max. 95 % of the applied mains
voltage.
In order to still be able to achieve the maximum airflow of the connected fans, an increase of the
maximum frequency is possible for our motors. For this, a current increase must be included in the
calculation. It is necessary to optimize monitoring of motor current, output voltage, and speed using
suitable measuring instruments.
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 name plate)
3 ~ 400 V, 50 Hz
3 ~ 400 V, 50/60 Hz
3 ~ 400 V, 60 Hz
Motor Setup
0 %
Startvoltage
Motor Setup
OFF
VF quadratic
9.11.4

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.
Motor controller actuation
1 external Signal
2 Setting
3 Rampup time
4 Rampdown time
L-BAL-E304-GB 2004
Setting
"Edgefrequency"
48.5 Hz
48.5 Hz
57 Hz
Startvoltage
The start voltage is used to apply enough torque to the motors to insure they will run at
low speed.
Caution! In order to prevent overcurrent and unnecessarily high thermal load of the
motor, do not select to high a setting.
Adjustment range: 0 - 25 % (percentage of the maximum output voltage)
Factory setting: 0 %
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 "
1
3
0 .. 100 %
4
2
Part.-No.
89/139
Programming
Setting
"Max. Frequency"
50 Hz
60 Hz
60 Hz
09.05.2007
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