Shenzhen Hpmont Technology Co., Ltd Chapter 4 Electrical Installation
HD20 Series Inverters User Manual ―19―
4.3.1 Power Terminal Description
Figure 4-1 Main circuit terminal layout of HD20 series inverters
Table 4-2 HD20 main circuit terminal function description
Terminal Function Description
L1、L2、L3/N Three-phase AC power input terminals
L1、L3/N Single-phase AC power input terminals
U、V、W Output terminals, connect to three-phase AC motor
（+）、（ -） DC supply input terminals
（+）、 BR Braking resistor connection terminals
PE Earth terminal, connect to the ground
4.3.2 Wiring Terminals
During trial operation, make sure the inverter runs forward when the forward command is enabled.
If not, switch any two of the output terminals (U/V/W) or modify the setting of parameter F00.17 to
change the inverter’s direction.
The power terminal wiring is shown as Figure 4-2.
Figure 4-2 HD20 power terminal connection
POWER
L3/N
L1 L2
BR
(+) (-)
MOTOR
WU
V
PE
L1 L2
L3/N
(+) (-)
BR U V W PE
Optional EMI filter
Optional AC reactor
Mains supply
Brakingresistor
Fuses
Supply ground
4
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