The resistor or relay needs to be sized correctly to ensure no damage
to the pump transistors. Damage incurred due to incorrect sizing or
installation will not be covered by warranty.
These solutions require external 24 V power. If connecting to a PLC 24 V is usually
available.
Alarm Output (Pin 2, Output 1)
Alarm conditions are generated by system errors or leak detection.
Run Status Output (Pin 1, Output 2)
This output changes state when the motor starts/stops.
Speed: analog output—Un and Remote models only
A current analog signal within the range 4-20 mA into 250 Ω impedance is available
between pin three and pin four of the output connector. The current is fixed and directly
proportional to the pumphead rotation speed. 4 mA = zero speed; 20 mA = maximum
speed.
On the Un version there is also an option to match the scale of the 4-20 mA input if
this has been reconfigured by the user. This option is available in the Control settings
menu.
Note:
If the mA output is to be used for reading from a multimeter, a 250 Ω resistor is
required in series.
13.4
Optional output lead
Output lead length: 3 m (10 ft)
Br
W
Bl
Bk
Gy
A
Figure 16 - Optional output lead
A
Br
W
Bl
Bk
Gy
Yellow insert
Brown
White
Blue
Black
Grey
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