MGC300 Genset Controller User Manual
MGC300 Genset Controller Version 1.1 2020-01-04 Page 15 of 27
Table 6 Terminal Connection Description
No.
Function
Cable Size
Note
1
B-
1.5mm
2
Connected with negative of starter battery.
2
B+
1.5mm
2
Connected with positive of starter battery.
3
Fuel Relay Output
1.0mm
2
B+ power is supplied by terminal 2, rated 7A.
4
Crank Relay Output
1.0mm
2
B+ power is supplied by terminal 2, rated 7A.
5
Digital Input
1.0mm2
Digital input; GND connected is active (B-);
Level sensor; connected with level low signal or level
resistance sensor;
6
Remote Start Input
1.0mm
2
GND connected is active (B-);
7
Oil Pressure Input
1.0mm
2
Connected with digital signals of oil pressure low;
8
Fuel Level Sensor Input
1.0mm
2
Level sensor input;
9
Temp. Sensor Input
1.0mm
2
Connected with water/cylinder digital signals or temp.
resistance sensor;
10
RS485-
1.0mm
2
11
RS485+
1.0mm
2
12
Digital Output 1
1.0mm
2
Relay N/O connector, volt free output, rated 7A;
13
14
Digital Output 2
1.0mm
2
N/C output, rated 7A;
15
Relay COM
16
N/O output, rated 7A;
17
Mains R Voltage
1.0mm
2
Connected to Mains R Phase;
18
Mains S Voltage
1.0mm
2
Connected to Mains S Phase;
19
Mains T Voltage
1.0mm
2
Connected to Mains T Phase;
20
Mains N1 Input
1.0mm
2
Connected to Mains N wire;
21
Gens U Voltage
1.0mm
2
Connected to genset output U Phase;
22
Gens V Voltage
1.0mm
2
Connected to genset output V Phase;
23
Gens W Voltage
1.0mm
2
Connected to genset output W Phase;
24
Gens N2 Input
1.0mm
2
Connected to genset output N wire;
25
CT COM
1.0mm
2
26
CT IC
1.0mm
2
Outside connected with CT secondary coil (rated 62.5mA);
27
AT IB
1.0mm
2
Outside connected with CT secondary coil (rated 62.5mA);
28
CT IA
1.0mm
2
Outside connected with CT secondary coil (rated 62.5mA);
