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No.
Function
16
RS485B
17
RS485A
18
AI3_RIU
19
AI4_R
20
DI5_HL
21
DI6_HL
22
DI7_HL
23
DI8_HL
24
CAN_L
25
CAN_H
26
AI5_R
27
AI6_R
28
GND
29
+5V OUT
30
GND
31
B-
32
D+
33
B+
34
DO_COM_H
NOTE1: The back USB port is for parameter programming, PC can be used to program controller;
NOTE2: HEM4300 controller can suit for DC (8~35)V battery voltage environment, battery negative must be reliably
connected to engine shell. The sectional area from power B+ and B- to positive and negative connection line is not less
than 1.0mm
2
. If floating charger is installed, please direct connect its output line to battery positive and negative, then
separately connect battery positive and negative to controller input port of positive and negative power, preventing
charger disturbing controller's normal running.
NOTE3: All outputs of controller are transistor active outputs. If need expand relay, please add freewheel diode (when
expand relay coil has DC) or RC circuit (when expand relay coil has AC) to coil two terminals of expand relay, preventing
it disturbing controller or other equipment.
HEM4300 Engine Controller User Manual
Cable Size
0.5mm
2
Shielded twisted-pair cable is recommended to use,
single end is grounded.
External 120Ω resistor is not required, whether using
0.5mm
2
internal 120Ω match resistor can be determined by
"Match Resistor Enable" item.
Analog
1.0mm
2
resistance/current/voltage
type can be configured.
Resistance
1.0mm
2
input port.
1.0mm
2
Aux. output port, high/low
1.0mm
2
electric level active can be
2
1.0mm
configured.
1.0mm
2
2
0.5mm
Shielded twisted-pair cable is recommended to use,
single end is grounded.
0.5mm
2
There is 120Ω match resistor between CAN_L and
CAN_H inside controller.
1.0mm
2
Resistance
2
input port.
1.0mm
1.0mm
2
Analog input port COM.
1.0mm
2
Output DC+5V.
1.0mm
2
Analog input port COM.
1.0mm
2
Connects starting battery negative.
Connects charger D+ (WL) terminal, it hangs in the air if
1.0mm
2
there is no this terminal on the charger.
Connects starting battery positive.
Warning! When DO_COM_H port active COM is connected to
1.0mm
2
external power supply, power reverse connection is prohibited,
otherwise controller will damage.
Output port active COM, connects starting battery
positive.
1.0mm
2
Warning! Power reverse connection is prohibited for
DO_COM_H port, otherwise controller will damage.
Remark
input
port,
Setting items see Table
10.
type
analog
Setting items see Table
10.
type
analog
Setting items see Table
10.
Page 23 of 55
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