Download user manual - Ziehl

Operating Instructions AM-MODBUS(-W)
Programming Fcontrol Basic by hand held terminal A-G-247NW
Uout
Fmax = 50 Hz
100 %
Fedge = 48.5 Hz
L
Q
Foff
Ustart = 10 %
Fon
Fout [Hz]
Ustart = 0 %
0
5
10
15
20
25
30
35
40
45
0.5
1
5
1
2
10
2
4
20
3
6
30
4
8
40
5
10
50
6
12
60
7
14
70
8
16
80
10 0...10 V
9
18 20 0...20 mA
90 100 0...100 % PWM
50
Analog In 1
26.07.2012
v_u_f_dia_fcontr_d.vsd
Uout Output voltage
Fout: Output frequency
Analog In Speed setting signal (0 - 10 V, 0...20 mA, 0...100 % PWM)
Ustart Startvoltage
Foff Shutdown Freq.
Fon: Switch on Freq.
Fedge Edgefrequency
Fmax Max. Frequency
L linear
Q Square (factory setting)
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 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
57 Hz
60 Hz
3 ~ 400 V, 60 Hz
Startvoltage
VF quadratic
L-BAL-E218-GB 1415 Index 001
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
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 ”
Part.-No.
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