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How to use External Control for WT600-1F

Release Time:2016-12-23

External Control Input


Communication Control
The pump can connect to control computer (computer, PLC, SCM) through RS485 serial communication module (shown as below). 


Analog Single Input function
Set “External Control” in “on” state. External control module is shown as below.


Terminal Definition of Standard External Control Module
1# is analog input in 4 – 20 mA, 0 – 5 V, 0 – 10 V external control modules. Control the speed of the pump.

2# is external control start/stop input. When connected to COM, the pump runs; When connected to high level, the pump stops.

3# is external control cw/ccw input. When connected to COM, the pump rotates clockwise; When connected to high level, the pump rotates counter clockwise.

4# is analog ground (AGND) in 4 – 20 mA, 0 – 5 V, 0 – 10 V external control modules; 4# is pulse input in pulse input external control modules. Control the speed of the pump. 10 KHz is corresponding to the max.speed.

5# is the COM of external control direction and start/stop signal input; It’s also the COM of pulse signal input in pulse input external control modules.


External Control Output
Pump is equipped with output port in order to monitor the status of pump. Please see below “External Control Output Port Pins Diagram: DB9”. Output signal adopts optoelectronic isolation circuit. A pull-up resistor and power supply are needed when using. 

Terminals Definition
Terminal 1   Start/Stop output. Pump outputs low level when it runs; pump output high level when it stops.
Terminal 2  Direction output. Pump output low level when it runs clock wise; pump output high level when it runs count clock wise.
Terminal 8  Pulse output, 0 – 600 rpm corresponding to 0 – 10 kHz.
Terminal 4, 6, 7   COM
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