Duplex VARIOspeed 3R Manual Del Usario página 6

HAND/OFF/AUTO Operation
HAND position
The pump will run at a fixed speed. The HAND mode frequency can be set in the VFD by entering a value in P.4.
NOTE: In HAND mode, the system pressure is not monitored so the system must be supervised at all times while being
used.
Changing the HAND Speed Reference (changes made on each VFD)
1. On the VFD, press MODE to choose the parameter setting mode.
2. Turn the SETTING DIAL until P.4 appears.
3. Press SET to read the current hand speed value. "60.00" (initial value)
appears.
4. Turn the SETTING DIAL to change it to the new hand speed value
"55.00".
5. Press SET to save. Flash --- Parameter setting complete!
• Press MODE twice to return the monitor to frequency monitor.
OFF position
The pump will not run.
AUTO position
The lead pump will not run if the pressure is above the Set Pressure. The lead pump will start automatically if the pres-
sure drops below the Set Pressure less the Start Diff. Press. 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 (see example below). The lag pump
will start when the lead pump is running at full speed and the pressure is below the Set Pressure less the Lag Start
Differential for five seconds. The lag pump will run at full speed while in operation. The lag pump will stop when the
pressure exceeds the Set Pressure plus the Lag Stop Differential for the Lag Stop Time.
6
P.000
(The parameter number
read previously appears.)
P.004
60.00
55.00
55.00
P.004
Sec.
VARIOspeed 3R Duplex User Manual
®