Duplex VARIOspeed 3R Manual Del Usario página 8

Parameter Setup List
Alternation Time
The Alternation Time is the total accumulated run time of the current lead VFD, before the lead operation is passed to
the other VFD. Alternation Time is intended to even out the wear of the VFD's by transferring the lead operation after a
set period of run time.
Pump 1/Pump 2 OL Amps
The VFD's electronic overload will signal an overload fault and protect the motor from damage in the event of an
overload condition. Set the Pump1/Pump 2 Motor OL Amps setting to the motor nameplate Full Load Amps for non-
submersible pumps and to the Motor Max Amps for submersible pumps.
Pump 1/Pump 2 Voltage
Set the Pump 1/Pump 2 Motor Voltage setting to the voltage rating found on the motor nameplate. This value must not
exceed the voltage of the incoming power.
Sleep Frequency
Set the Sleep Frequency to the frequency at which the lead pump no longer builds pressure when operating at or near
the Set Pressure. The lead VFD will enter the "sleep" mode when the output frequency of the lead VFD drops below the
Sleep Frequency for a period of time (Sleep Time). The sleep function is temporarily suspended while the lag VFD is in
operation.
Sleep Time
Set the Sleep Time to the amount of time that the lead VFD will wait before entering "Sleep" mode after the output
frequency drops below the Sleep Frequency. Note: If the system cycles on and off too frequently, try the following:
increase the Sleep Time, lower the Sleep Frequency, or increase the Start Pressure. A combination of changes of all
three settings may be necessary. If the lead VFD does not enter "Sleep" mode when there is no flow of water in the
system, the Sleep Frequency must be increased.
Sec.
Sleep Function
Xducer Max Range
If using a different transducer other than supplied, set the Xducer Max Range to the full span rating of the pressure
transducer. The Set Pressure and Start Diff. Pressure values must also be updated after changing the Xducer Max
Range, as these values are automatically scaled based on the Xducer Max Range.
Min Frequency
The Min Frequency should be set to the minimum output frequency that the pumps should be allowed to run. Contact
your pump manufacturer to obtain the pump safe operation ranges.
8 VARIOspeed 3R Duplex User Manual
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