Chapter 4 Electrical Installation
Shenzhen Hpmont Technology Co., Ltd.
- 22 -
HD3N Series User Manual V1.1
Frame 10 -
Frame 11
(including -C)
Frame 12
(including -C)
4.4
Control Board
•
The control circuit and power circuit are basically insulated. Do not touch HD3N after it is powered.
•
If the control circuit is connected to the external devices with live touchable port, it should increase an additional
isolating barrier to ensure that classification of external devices not be changed.
•
If connect the communication terminal of the control circuit to the PC, choose RS485/232 isolating converter
which meets the safety requirement.
•
Only connect the relay terminal to AC 220V voltage signal. Other control terminal are strictly forbiden for this
connection.
L1
L2
L3
(+)
(-)
PE
Braking
resistor
Supply
ground
P1
DC
reactor
U
V
W
PE
Braking unit
BR1
BR2
(+) (-)
Supply
ground
EMI filter
AC reactor
Mains supply
MCCB
Contactor
L1
L2
L3
(+)
(-)
PE
Braking
resistor
Supply
ground
Supply
ground
U
V
W
PE
Braking unit
Note: The DC reactor is built-in
BR1
BR2
(+) (-)
EMI filter
AC reactor
Mains supply
MCCB
Contactor
Danger
Warning