Emotron EMX-B, Instruction Manual

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CG Drives & Automation 01-6048-01r3
Mounting and installation 21
2.4.3 Recommendations with respect to EMC
In order to fulfil the European EMC Directive regarding electromagnetic
compatibility, the following precautions must be taken:
The motor cable must be mounted as close to the heat exchanger housing as
possible. If the cable is too long, the excess should be collected together in the
form of, for example, a figure “8”. The area enclosed by the cable should be as
small as possible. Electrical tape or cable ties can be used to achieve this.
Fig. 9 Excess motor cable should be arranged such that the area enclosed is as
small as possible
Special EMC couplings/glands are not necessary. An EMC filter is built into the
EMX-B control unit.
For communication signals, the used RS485 cable type should preferably be
screened and of twisted pair type to avoid EMI. The cable should be placed at
least 20 cm away from any power cables. Drop cables shall be avoided the extent
possible.
It is recommended to connect the screen of the cable to chassis/mounting plate
near to the EMX-B gland.
Wrong
Correct