Bell & Gossett 193 TECHNOVAR VARIABLE SPEED PUMP CONTROLLER AND INTEGRATED AJUSTABLE FREQUENCY DRIVE - Manual (Page 48)

Operating Instruction
48
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