KA (SS)
- 5 -
(2)
In the stop state, press the digital knob, the lower right corner of the OLED flashes and the value is RS485 communication address
(1~32). At this time, you can turn the digital knob to change the value. After setting, press the digital knob to save the data and the
screen no longer flashes.
(3)
Press the digital knob and in same time turn on the pump to check the program version number and the SN code of the pump.
4.
External Control Instruction
①
.
RS232 Communication Port
Serial 232 communication interface, this interface is directly connected to the computer’s serial interface, the protocol is Modbus
protocol.
②
.
Analog Signal Input Port
: Control the motor speed from 0 rpm to maximum speed through analog signal.
0-5V/0-10V
: 0V to 5V/10V voltage signal input port.
First, short-circuited the external control identification port (IN3) and GD2, the default is 0-5V speed control. Connect the 0-5V pin of the
green terminal to the positive pole of the analog signal, and connect the GND pin to the negative pole of the analog signal. At this time,
adjusting the analog signal speed will change accordingly.
4-20mA
: 4 to 20mA current signal input port
First, short-circuited the external control identification port (IN3) and the 0-5V/4-20mA speed control conversion interface (IN4) with GD2,
at this time it is 4-20mA speed control. Connect the 4-20mA pin of the green terminal to the positive pole of the analog signal, and connect
the GND pin to the negative pole of the analog signal. At this time, adjusting the analog signal speed will change accordingly.
GND
: Analog signal negative terminal.
Note
:
Ø
The factory default of voltage analog speed control is 0-5V. If customers need 0-10V speed control, please contact us for technical
support.
Ø
It is forbidden to connect the 0-5V signal to the 4-20mA input terminal, the wrong connection may cause damage to the equipment.
The external control port plug must be plugged and unplugged when the power is off to prevent the external control port from being
burned.
③
.
RS485 Communication Port
B-
: Connect to RS485 B-
GND
TXD
RXD
VDD2
0 - 5 V
4 - 20
mA
GD1
启停
B -
A +
RS232
接口
RS485
接口
对
GD2
启停
状态输出
外控识别端口
0-5V/4-20mA
调速转换接口
POWER_VDD
POWER_COM
GD2
+24V
GND
IN1
IN2
IN3
IN4
RL1
1
2
3
4
5
换向——对GD2换向
Status
Output
0-5V/4-20mA Speed Conversion Interface
External Control Identification Port
Change Direction
—
Change Direction for GD2
Start/Stop
—
For GD2
RS485 Interface
RS232 Interface