Note:
Shut off the power supply before changing the pump head.
Remote Control
DB15 plug
Communication Control - RS485
4 - 20 mA speed control
0 - 5 V speed control
0 - 10 V speed control
The pump can connect to control computer (computer, PLC, SCM)
through RS485 serial communication
(shown as below).
Please contact Longer Company for communication protocol.
module
C O M
B
A
1 5
1 6
BT300-1F OPERATING MANUAL
BT300-1F OPERATING MANUAL
Pump Head Mounting
The pump head is mounted on drive before the pump leaves the
factory. Follow below procedure for changing another pump head.
1. Loose the two M4 screws which connect the pump head and the
drive. Dismantle the pump head slightly.
2. Insert the flat end of the pump head's shaft to the slot of drive's
coupling. Make the location hole of the pump head match the
location pin of the drive.
3. Insert the two mounting screws into the mounting holes of the
pump head. Then tighten the mounting screws to connecting
hole of drive.
Remote Control
Communication Control
Analog Signal Input Function
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.
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 - 12 V), the pump
stops.
External cw/ccw control input. When connected to COM, the
pump rotates cw, when connected to high level (5
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#
-
1
4
3
5
2
0 - 5V, 0 - 10V, 4 - 20mA External Control Module Wiring Diagram
0-5,0-10V,4-20mA
Speed control input
cw/ccw
control input
Start/Stop
control input
0-5V
5
4
3
2
1
External Control Module
Analog Signal Input
Analog Signal Output
0 - 5 V
Analog Output
