Remote Control
Remote Control
DB15 plug
Communication Control - RS485
Analog Control
4 - 20 mA speed control
0 - 5 V speed control
0 - 10 V speed control
COM
B
A
Analog Control
Set the “Remote Control” in “on” state. External Control Module is
shown as below.
Note:
Four kinds of standard external control module need to order
separately according to special requirements.
5
4
3
2
1
External Control Module
Drawing 14
13
14
LEAD - 2 OPERATING MANUAL
LEAD - 2 OPERATING MANUAL
Communication Control
The pump can connect to control computer (computer, PLC, SCM)
through RS485 serial communication module (shown as below).
Please contact Longer Company for communication protocol.
Terminal Definition of Standard External Control Module
Analog speed control input, for external speed control in external
control modules of 4 to 20 mA, 0 to 5V and 0 to 10 V.
External start/stop control input. When connected to COM, the
pump runs, when connected to high level (5 to 12 V), the pump
stops.
External cw/ccw control input. When connected to COM, the pump
rotates cw, when connected to high level (5 to 12 V), the pump
rotates ccw.
Reference potential for 4 to 20 mA, 0 to 5V/10V speed control
input.
Reference potential for external cw/ccw, external start/stop input.
1#
2#
3#
4#
5#
0 - 5V, 0 - 10V, 4 - 20mA External
Control Module Wiring Diagram
1
4
3
5
2
0-5,0-10V,4-20mA
Speed control input
cw/ccw
control input
Start/Stop
control input
