SECTION THREE – ELECTROMAGNETIC COMPATIBILITY (EMC)
DS2000 USER’S MANUAL (rev.C)
3.4
3.4 WIRING AND GROUNDING
All the following cables must be shielded, with 85% minimum shielding coverage:
Power - Power motor cable
- External recovery resistor cable
- DC-BUS cable
Signal - Encoder cable (see Fig. 3.1)
- Resolver cable (see Fig. 3.1)
- RS485 / CAN BUS cable
- J2A, J2B, J2C cable
- 24V power supply cable
- Restart Interlock cable
- 24V fans cable (only size E)
Fig. 3.1 – Grounding of shield to connectors at motor side
NOTES:
If a power terminal board is used at motor side, the shield must be RF connected to a
metallic PG gland.
The shields of the cables must be connected at both ends to the proper housing via full
circumferential bond to metallic connectors or hose clamps.
In case of Sub-D connector, cable shield must be grounded to the metallic hood.
When there is not metallic connector at drive side, a kit with stand-off, screws and
metallic hose clamps is provided. The shield of the cable must be uncovered from
insulation coating and RF connected to the stand-off through the metallic hose clamp,
as in Fig.3.2.
Fig. 3.2 – Grounding of shield without metallic connector