Inovance MD500-PLUS Series - Grounding the Cabinet System

Electrical Installation
‑153‑
No.
Wiring Description
③
Connect the grounding copper busbar of the control cabinet to the
metal housing through a protective grounding conductor.
④
Connect the motor output cable shield to the PE terminal on the
output side of the product.
7.5.4 Grounding the Cabinet System
The most cost‑effective method of suppressing interference in a cabinet is to isolate
the interference source from the equipment that may be interfered with. Divide a
cabinet into multiple EMC compartments or use multiple cabinets based on the
intensity interference sources, and install each device in accordance with the
following wiring principles.
Table 7–21 Wiring principles
No.
Wiring principles
1
Place the control unit and the drive unit in two separate
cabinets.
2
If multiple cabinets are used, connect the cabinets by using a PE
cable with a cross‑sectional area of at least 16 mm
2
for
equipotentiality between the cabinets.
3
If only one cabinet is used, place the devices in different
compartments of the cabinet based on signal intensity.
4
Perform equipotential bonding for devices in different
compartments of the cabinet.
5
Shield all communication (such as RS485) and signal cables
drawn from the electric cabinet.
6
Place the power input filter in a position near the input interface
of the cabinet.
7
Provide spray coating protection for all grounding points in the
cabinet.