Watson-Marlow qdos 20, Инструкция по эксплуатации

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13.2.1.3.2 Remote control speed: analog input
Increase/decrease pump speed via rising/falling analog current control signal:
Range M12 input connector
4-20 mA Pin 3
The Un model can be calibrated by the user to control speed proportionally or inversely proportional to
input mA signal.
4-20 mA circuit impedance: 250 Ω.
Do not invert the polarity of the terminals. If the polarity is inverted the motor will not run.
13.2.1.4 Output connection
13.2.1.4.1 Output connection pin assignments
1
2
3
4
5
Pin
No. Function
Specification
Referenced
to
Output
lead
colour
1
Run status
output
(Output 2)
Open collector output uncommitted (Function is configurable on
Un model.)
Brown
2
Alarm output
(Output 1)
Open collector output uncommitted (Function is configurable on
Un model.)
White
3 Analog out 4-20 mA into 250 Ω Pin 4 Blue
4 GND Ground (0 V) Black
5 Supply
Pin 5 supply voltage is 5 V with impedance of 2.2 k, this can be
connected via a NO switch to input pin 1 or 2 to power the
inputs.
Grey
13 INSTALLATION: PART 4 (CONTROL CONNECTIONS AND WIRING) 89