51
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0270
0270 KNEE FRQ.
Knee frequency
60.0 Hz
Possible settings:
30.0 – 90.0 Hz
This parameter determines the frequency at which the HYDROVAR generates its maximum output voltage
(value of the connected input voltage). For standard applications this frequency should be set to MAX.
FRQ. [0245] (Default Setting 60Hz).
caution
this parameter should rarely be adjusted! incorrect setting can cause an overload error and
damage to the motor. contact factory before changing.
0275
0275 POWER REDUCT.
Reduction of the maximum output current
OFF
Possible settings:
OFF, 85%, 75%, 50%
If a motor with lower nominal power is used, the maximum output current should be adjusted accordingly.
the reduction of the maximum output current also affects the overload-detection!
HV Horsepower
output current [a]
OFF = 100%
85%
75%
50%
230V, 2 HP
7
5.95
5.25
3.5
230V, 3 HP
10
8.50
7.50
5.00
460V, 3 HP
5.7
4.85
4.28
2.85
460V, 5 HP
7.3
6.21
5.48
3.65
460V, 7.5 HP
13.5
11.48
10.13
6.75
460V, 10 HP
17
14.45
12.75
8.5
460V, 15 HP
23
19.55
17.25
11.5
0280
0280 SEL. SW. FRQ.
Selection of the switching frequency
Auto
Possible settings:
Auto, 8 kHz, 4 kHz
• Auto (default setting)
In standard operation the HYDROVAR works with a switching frequency of 8 kHz in order to reduce the
noise level. At rising temperature inside the HYDROVAR the switching frequency is decreased to 4 kHz
automatically.
• 8 kHz - Selection with lowest noise level, but without decrease at rising temperature.
• 4 kHz - Reduce the temperature in the HYDROVAR
proGraMMinG
