Bell-gossett 193 TECHNOVAR VARIABLE SPEED PUMP CONTROLLER AND I Manual de usuario descargar pdf (Pagina 48)

Operating Instruction

10.6 Ramp 3: Slow running up time:

The following ramps 3 and 4 determine the speed of the internal Technovar controller

and depend on the system, which should be controlled.

RAMP 3

70 Sec

A too slow running up time can cause a break of the

outgoing pressure during variation of the demand.

A too fast running up time may lead to oscillation and/or overload of the inverter.

Press on the Technovar to change to

10.7 Ramp 4: Slow running down time:

RAMP 4

70 Sec

A too fast

A too slow

setting leads to oscillation

setting delays the switching off too much

Ramp – Window

Press on the Technovar to change to

10.8 Maximum Frequency

MAX. FREQUENCY

60.0 Hz

Possible setting between 40 and 70 Hz.

Attention: Settings higher than 60 Hz may overload the

motor!

Settings of 10% above nominal frequency cause 33% more power consumption!

Press on the Technovar to change to

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Bell-gossett 193 TECHNOVAR VARIABLE SPEED PUMP CONTROLLER AND I Manual de usuario Pagina 48