Inovance MD880 Series - AC Drive Wiring and Terminals

3 Electrical Installation
- 56 -
PCB with relay
contact output
Power supply
+-
COM
DI1
K1
Excessive area
K1
PCB with relay
contact output
COM
DI1
Power supply
+-
Figure 3-7 Routing for preventing too large loop area
6) Lay multiple types of cables along the metal block with equipotential connection
and separate them to improve internal EMC. If cables in the same metal (zinc-iron
or stainless steel) duct are separated with metal plate, the e󶍽ect will be better.
Relay cable
Poor EMC
Acceptable
Recommended
Power or interference cable
Measuring or sensitive cable
Figure 3-8 Routing of multiple types of cables
7) The unshielded part of the shielded cable must be as short as possible, and the
shield braid is connected to the nearest PE end. If the stripped part is long, the
cable is prone to interference, especially for encoder signals.