Inovance SV660, Руководство для продвинутых пользователей

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3 Wiring
1) It is recommended to adopt D class (or higher) grounding (grounding resistance below 100 Ω).
2) Adopt single-point grounding.
■
Use a noise filter to prevent radio frequency interferences. In domestic applications or an
unfavorable environment with strong power noise interference, install a noise filter on the input side
of the power cable.
■
To prevent malfunction due to electromagnetic interference, take the following measures:
1) Install the host controller and the noise filter near the servo drive.
2) Install a surge protection device on the relay, solenoid and electromagnetic contactor coils.
3) Separate the electrical circuit from the electronic circuit during wiring and keep a distance of at least
30 cm between them. Do not put these cables in the same duct or bundle them together.
4) Do not share the same power supply with an electric welder or electrical discharge machine. When
the servo drive is placed near a high-frequency generator, install a noise filter on the input side of
the power cable.
3.8.1 Anti-interference Wiring Example and Grounding
The servo drive uses high-speed switch elements in the main circuit. The switch noise may affect the
normal operation of the system due to different peripheral wiring and grounding of the servo drive.
Therefore, the servo drive must be properly wired and grounded. A noise filter can be added if necessary.
1 Anti-interference wiring example
L1
L2
L3
U
V
W
M
CN2
Noise
filter
Servo drive
Grounded to earth Grounding plate
Above
3.5 mm
2
Above
2.0 mm 2
Above
3.5 mm
2
PG
Figure 3-21 Anti-interference wiring example
For the grounding cable connected to the enclosure, use a cable of at least 3.5 mm
2
(braided copper
cables recommended).
If a noise filter is used, abide by the precautions described in
" 3.8.2 Instructions for Use of the Noise Filter "
.
2 Grounding
To prevent potential electromagnetic interferences, ground properly according to following instructions.
1) Grounding the motor enclosure