Shenzhen Hpmont Technology Co., Ltd.
Chapter 4 Electrical Installation
HD3N-L Series User Manual V1.0
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Chapter 4
Electrical Installation
4.1
Precautions
•
Only qualified electrical engineer can perform wiring job.
•
To facilitate the input side over-current protection and outage maintenance, connect HD3N-L with power supply
via the MCCB or fuse.
•
Make sure whether the action is reliable or effective after external power emergency stop terminal is connected.
•
There is more than 3mA leakage current in HD3N-L grounding, depending on the running conditions. To ensure
safety, HD3N-L and the motor must connect to two separate and independent grounding wires, so as to ground
reliably. It must use Type B mode when utilize ground leakage protection devices (ELCB/RCD).
•
Do not touch the wire terminals of HD3N-L when it is live. The main circuit terminals are neither allowed
connecting to the enclosure nor short-circuiting.
•
Do not do pressure test on HD3N-L.
•
For HD3N-L with more than 2 year’s storage, please use regulator to power it slowly.
•
Do wiring connection of the braking resistor according to the wiring figure.
•
Make sure the terminals are fixed tightly.
•
Do not connect the input supply cable to the output terminals U/V/W of HD3N-L.
•
Do not connect the phase-shifting capacitors to the output circuit.
•
The DC bus terminals of HD3N-L must not be short-circuited.
4.2
Peripheral Accessories Selection
4.2.1
Wiring Specifications of Input and Output
The AC supply to HD3N-L must be installed with suitable protection against overload and short-
circuits, i.e. MCCB (molded case circuit breaker) or equivalent device.
The recommended specification of MCCB, contactor & cables are shown as Table 4-1.
The size of ground cable should accord with the requirement in 4.3.5.4 of IEC61800-5-1.
Table 4-1 Input and output wiring specification
Model
MCCB
(A)
Contactor
(A)
Supply Cable
(mm
2
)
Motor Cable
(mm
2
)
Ground Cable
(mm
2
)
Size
HD3N-4T7P5-L
40
32
4
4
4
Frame3
HD3N-4T011-L
63
40
6
6
6
Frame3
HD3N-4T015-L
63
40
10
10
10
Frame4
HD3N-4T018-L
100
63
10
10
10
Frame4
HD3N-4T022-L
100
63
16
16
16
Frame5
16
Danger
Warning
4
