IMO HD2-3.7A-43 - 5.3.3 Displaying fault information; 5.4 Operating the inverter through the keypad; 5.4.1 Enter;exit menu

HD2 Series Inverter Installation Guidelines
-28-
4.4.2 Wiring diagram of control circuit for parallel inverters
Master
Master–
Slave 1
Master–
Slave 2
Master–
Slave 3
Master–
Slave 4
Master–
Slave 5
15-core serial port
cable length
About
1000mm
About
2500mm
About
2500mm
About
3500mm
About
4500mm
About
5500mm
Optical fiber cable
length
About
1000mm
About
1500mm
About
2600mm
About
3700mm
About
4800mm
About
5900mm
Master
Drive board Drive board Drive board Drive board Drive board
CN5 CN2 CN6 CN3 CN7 CN4
Board for parallel connection
Slave 1 Slave 2 Slave 3 Slave 4 Slave 5
（
+
） （
-
）
（
+
） （
-
） （
+
） （
-
） （
+
） （
-
） （
+
） （
-
） （
+
） （
-
）
U+
U-
V+
V-
W+
W-
15-pin serial
port
Optical receiver
15-pin serial
port
Optical receiver
15-pin
serial port
Optical receiver
15-pin
serial port
Optical receiver
15-pin serial
port
Optical receiver
15-pin serial
port
Optical receiver
Optical receiver
15-pin serial
port
15-pin serial
port
Optical receiver
15-pin
serial port
Optical receiver
15-pin serial
port
Optical receiver
15-pin serial
port
Optical receiver
U+
U-
V+
V-
W+
W-
U+
U-
V+
V-
W+
W-
U+
U-
V+
V-
W+
W-
U+
U-
V+
V-
W+
W-
U+
U-
V+
V-
W+
W-
U+
U-
V+
V-
W+
W-
U+
U-
V+
V-
W+
W-
U+
U-
V+
V-
W+
W-
U+
U-
V+
V-
W+
W-
U+
U-
V+
V-
W+
W-
Drive board
Optical receiver
15-pin serial
port
U+
U-
V+
V-
W+
W-