42
SETTING AND STARTING UP of a 2 PUMPS UNIT
WITHOUT FLOW SENSOR
Operation
Procedure
1
ADDRESS THE
INVERTER
SLAVE
Turn on the drive that works as SLAVE and set the parameter W in the
menu ADV as
W = S1 (slave 1)
2
PUMP ROTATION
CHECK
(surface pumps)
Start the pump ( key START/STOP ) and check the motor rotation; if it runs
backwards change the parameter
RO in menu BASIC
2a
PUMP ROTATION
CHECK
(submersible
pumps)
-
Go to TEST mode and start the pump (key START/STOP )
-
Read and record the pressure
-
Stop the pump (key START/STOP )
-
Reverse the rotation through the
parameter RO in menu BASIC
-
Go to TEST mode and start the pump (key START/STOP )
-
Read and record the pressure
-
Stop the pump (key START/STOP )
-
The right rotation is the one with the higher pressure.
3
DRY RUNNING
PROTECTION
THROUGH
PARAMETER
COSPHI
-
Go to TEST mode, start the pump ( key START/STOP ) and open a tap
-
Scroll the working parameters by pressing RIGHT ARROW, to parameter
F (frequency)
-
Increase the frequency up to 45 Hz by pressing the UP ARROW
-
Close all the taps
-
Scroll the working parameters by pressing RIGHT ARROW, to parameter
PF and record it (e.g. PF 0,44)
-
stop the pump (key START/STOP )
BASIC
TEST
P 1,5
OPEN
F 31
F 45
CLOSE
PF .44
OFF
SET /
TEST
START
/STOP
START
/STOP
-
go to parameter
PF in menu ADV
-
set the parameter PF
to the recorded value – 0,03 (e.g. 0,44 – 0,03 = 0,41)
BASIC
ADV
d 0,4
PF .10
PF
.10
PF .41
ADV
SET /
TEST
-
go back to menu ADV and go to parameter TPF
-
set TPF to 3 (3 = 3 sec = intervention time before DRY RUNNING alarm)
