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English
Installation and operating instructions - WILO-HELIX VE 1~
Pressor sensor
- Pressure sensor 4-20mA
• 2 wires (4-20mA / +24V)
• 3 wires (0V / 4-20mA / +24V)
- Pressure sensor 0-10V
• 3 wires (0V / 0-10V / +24V)
Set value control
- Adjustment of set value by potentiometer
Wire colors:
- Adjustment of set value by external control
ATTENTION!
Take care to isolate the bare end of the wire to be
disconnected from terminal 2 and coming from the
potentiometer.
ON / OFF Pump
The converter is equipped with a relay contact to
indicate the drive OK (Closed when power applied
and drive OK, Open when out of power or drive
failure).
The remote control allows the switching On or Off of
the pump (free contact), this function has priority on
the others.
This remote control isn’t set at the state of delivery
(shunt present).
If you want use the remote control, remove the
shunt and replace it by a free contact
Example:
Float switch, pressure gauge for dry-running…
0V 4-20mA +24V
Sensor
or
0V 0-10V +24V
Sensor
1 2 3 4 5 6 7 8 9 10 11
0-20mA 0V
External control
or
0-10V 0V
External control
1 2 3 4 5 6 7
Potentiometer
yellow
gray
brown
green
white
1 2 3 4 5 6 7
Potentiometer
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6 7 8
9
10 11
Insulate the end of the
remaining wire
Remote control
Not used
Contact: 240V-2A AC
Failure contact
10V
0V
+24V
+24V
1 2 3 4 5 6 7 8 9 10 11
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