Features Optional Features/Pump Soft Start
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MillipaK 4QPM Controller Manual Page 46 13/08/03
Pump Soft Start
The MillipaK units may be fitted with a Pump Soft Start feature. This allows a pump motor (up to
120A) to be connected directly to the controller and eliminates the need for a contactor. It also has
the added benefit of providing a ‘soft start’ to the pump motor by gently ramping up the voltage
over a pre-determined period. After triggering the pump will remain active for as long as the
trigger input remains active or the pre-set timer expires, whichever is the shorter.
Immediate Pump Soft Start Ramp Up Delay
Calibrator Menu Reference:
11.04
Minimum Maximum Step Size Typical Value
0.1S 1.0S 0.1S 0.1S
Immediate Pump Soft Start Timer
Calibrator Menu Reference:
11.05
Minimum Maximum Step Size Typical Value
0.5S 10.0S 0.1S 2.0S
WARNING: The pump soft start option, when fitted, is NOT current limited and
care should be taken not to exceed the maximum current specified by
the controller rating.
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