65
0235
0235 RAMP FMIN A
2.0 Sec
Ramp Fmin Acceleration
Possible settings: 1.0 – 25.0 sec
Fast running up time to start up the HYDROVAR till the selected MIN. FREQUENCY [0250].
Above the Minimum Frequency, RAMP1 [0215] (fast acceleration ramp) starts to work.
o Excessively fast running up time may cause an error (OVERLOAD) during the HYDROVAR
starts up.
0240
0240 RAMP FMIN D
2.0 Sec
Ramp Fmin Deceleration
Possible settings: 1.0 – 25.0 sec
Fast running down time, to stop the HYDROVAR immediately below the selected MIN.
FREQUENCY [0250].
o Excessively fast running down time tends to cause an error (OVERVOLTAGE)
0245
0245 MAX. FRQ.
50.0 Hz
Maximum Frequency
Possible settings: 30.0 – 70.0 Hz
This parameter determines the maximum speed of the pump.
The standard setting is according to the nominal frequency of the connected motor.
Settings higher than standard setting may overload the motor!
Settings of 10% above nominal frequency cause a 33% higher power
consumption!
0250
0250 MIN. FRQ.
15.0 Hz
Minimum Frequency
Possible settings: 0.0 – 30.0Hz
At operation below the set min. frequency the HYDROVAR operates with the fast Ramps
[0235/0240].
The min. frequency depends on the selected pump type and application.
Especially for borehole applications the min. frequency must be set to ~30Hz.
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