Parameter Setup List
Pressure Transducer Fail Shutdown
In the event that the pressure transducer signal should be lost, the system will shut the pump(s) off. During the
transducer fail error, the display will flash “SENSOR FAILURE” on the main display and the fault indicator will illuminate.
If the transducer failure is corrected, the display will return to its normal condition and normal pressure control will
resume.
SETTING DESCRIPTION
RANGE
DEFAULT
Set Pressure
0 to “Xducer Max Range” -0.1
60.0 PSI
Start Diff Pressure
0 to “Set Pressure” -1
5 PSI
Lag Start Diff Pressure
0 to “Set Pressure” -1
7.0 PSI
Lag Stop Diff Pressure
0 to “Xducer Max Rng” - “Set Pressure”
5.0 PSI
Lag Stop Delay Time
0 to 999 seconds
2.0 seconds
Alternation Time
1 to 168 hours
24 hours
Pump 1 OL Amps
0 to VFD Amp Rating
Model Specific
Pump 1 Voltage
0 to 1000 Volts
Model Specific (240/480)
Pump 2 OL Amps
0 to VFD Amp Rating
Model Specific
Pump 2 Voltage
0 to 1000 Volts
Model Specific (240/480)
Sleep Frequency
0 to “Max Frequency”
35.0 Hz
Sleep Time
0 to 3600 seconds
10 seconds
Xducer Max Range
0 to 1000 PSI
200 PSI
Min Frequency
0 to “Max Frequency”
30.0 Hz
Max Frequency
“Min Frequency” to 120 Hz
60.0 HZ
PID Proportional Term
0.1 to 1000%
100.0%
PID Integral Term
0.1 to 3600 seconds
1.0 seconds
1st Accel Time
0 to 3600 seconds
2 seconds
1st Decel Time
0 to 3600 seconds
2 seconds
Accel 2 Switchover Freq
0 to “Max Frequency”
30 Hz
Accel/Decel Time
0 to 3600 seconds
3 seconds
High Pressure Alarm
0 to “Xducer Max Range” - 0.1
90.0 PSI
Run Dry Pressure
0 to “Set Pressure” -1
15 PSI
Run Dry Delay Time
0 to 6.0 minutes
0.5 minutes
Run Dry Restart Time
0 to 999.9 minutes
0.0 minutes (manual restart)
Set Pressure
Set Pressure is the target pressure to be maintained at the pump discharge. It cannot exceed the maximum range of
the pressure transducer.
Start Diff Pressure
The Start Diff. Pressure is the amount of pressure drop from the Set Pressure, at which the lead VFD will wake from
sleep and run to maintain the system pressure. The lead pump will start if the pressure drops below the Set Pressure
less the Start Diff. Pressure. Example: If the Set Pressure is 40 PSI and the Start Diff. Pressure is 5 PSI, the lead
pump will start when the pressure drops below 35 PSI.
Lag Start Diff Pressure
The Lag Start Diff. Pressure is the amount of pressure drop from Set Pressure, while the lead VFD is running full
speed and five seconds has passed, before the lag VFD is started. The lag VFD is run at full speed while in operation.
The lead VFD will not be allowed to enter sleep mode while the lag VFD is running.
Lag Stop Diff Pressure
The Lag Stop Diff. Pressure is the amount of pressure over the Set Pressure, after the Lag Stop Time has passed,
before the lag VFD is stopped.
VARIO
speed
®
3R Duplex User Manual
7
