10
Name Color
Description
PIN 1
Red
Digital Input 4
PIN 2
Black
Digital Input 3
PIN 3
White
Digital Input 2
PIN 4
Grey
Digital Input 1
PIN 5
Yellow
Digital Ground
PIN 6
Green
RS485 A
PIN 7
Brown
RS485 B
PIN 8
Blue
Analog Input 0 (0-10V or 0~20mA)
PIN 9
Orange
Analog Ground
a. Digital
input
:
Running capacity determined by the state of digital input,
When PIN4 connect with PIN5, the pump will be mandatory to stop; if disconnected, the digital
controller will be invalid;
When PIN3 connect with PIN5, the pump will be mandatory to run at 100%; if disconnected,
the control priority will be back on panel control;
When PIN2 connect with PIN5, the pump will be mandatory to run at 80%; if disconnected, the
control priority will be back on panel control;
When PIN1 connect with PIN5, the pump will be mandatory to run at 40%; if disconnected, the
control priority will be back on panel control;
The capacity of inputs (PIN1/PIN2/PIN3) could be modified according to the parameter setting.
b. Analog
Input:
To connect with PIN 8 and PIN 9, running capacity could be determined by 0~10V analog
voltage signal or 0~20 mA analog current signal.
The default control mode is by current signal, if you want to change to voltage signal,
please enter the parameter setting. (see 5.8)
c. RS485:
To connect with PIN6 and PIN7, the pump could be controlled via Modbus 485
communication protocol.
d.
Relay output (optional)
:
Connect terminal L & N to enable external control. An additional on-off Relay is
necessary while bearing power is greater than 500W (2.5A).