
Chapter 4 Electrical Installation
Shenzhen Hpmont Technology Co., Ltd.
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HD5L Series Controller User Manual V1.4
4.4.5
Control Terminal Wiring
To reduce the interference and attenuation of control signal, length of control cable should limit within
50m. There should be more than 0.3m between the control cable and the motor cable.
The control cable must be shielded cable. The analogue signal cable must be shielded twisted pair.
Figure 4-6 HD5L control board connection
Digital Input Connection
Dry contact
Using the internal 24V power supply (SEL and P24 are short-connected at factory) or external power
supply (remove the connector between SEL and P24), their connections are shown in Figure 4-7.
Figure 4-7 Dry contact connection
Controller enabled
UP
DN
Unused
Multi-speed 1
Multi-speed 2
Multi-speed 3
Controller is running
Controller is at
zero-speed running
Controller fault
Control Board
I/O Board
DO1
DI1
DI2
DI3
DI4
DI5
DI6
COM
+10
AI1/AI2/AI3
GND
DI7 - DI12
COM
AI4+
AI4-
GND
CME
DO2
COM
AO1/AO2
GND
R1C
R1B
R1A
Relay 3
R3C
R3B
R3A
Relay 4
R4C
R4B
R4A
Relay 2
R2C
R2B
R2A
+24V
COM
P24
SEL
K
DI1...DI12
+24V
COM
P24
SEL
K
DI1...DI12
+
-
12 - 30V
DC
Dry contact
Using internal
power supply
Dry contact
Using external
power supply
Current
Current