P281 BOOST
G
NOTICE:
• If this parameter is set too low or too high, then there is a risk for overload due to too
high starting current.
• Keep the settings as low as possible to reduce the risk of thermal overload of the
motor at lower frequencies.
P281 BOOST
5 %
Actual Value
Output Freq.
Left fct.
Up fct.
Down fct.
Right fct.
This parameter (possible setting 0-25%) sets the motor starting voltage in % of connected
supply voltage, thus determining the characteristics of the voltage/frequency curve.
The default value depends on the type of HYDROVAR:
HVL
Default setting (%)
2.015 ÷ 2.040
5
3.015 ÷ 3.040
4.015 ÷ 4.040
3.055 ÷ 3.110
8
4.055 ÷ 4.110
4.150 ÷ 4.220
10
P282 KNEE FREQ.
G
NOTICE:
This parameter must be used for special applications only. An incorrect setting can cause
overload or damage of the motor.
P282 KNEE FREQ.
50.0 Hz
Actual Value
Output Freq.
Left fct.
Up fct.
Down fct.
Right fct.
This parameter (default value 50 Hz, possible setting 30.0- 90.0 Hz) sets the knee
frequency, where HYDROVAR generates its maximum output voltage. For standard
applications, set this value according to nominal frequency of the motor.
P283 SEL.SW.FREQ.
G
This parameter sets the switching frequency.
8 Programming
66
HVL 2.015-4.220 Installation, Operation, and Maintenance Manual
Summary of Contents for hydrovar
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