Fig. 2-14 Wiring Guidelines To Minimize The Effects Of Emi - Siemens MICROMASTER 440 Operating Instructions Manual

Issue 10/03
Screening without a Gland Plate
Should a Gland Plate not be available, then the inverter can be screened using the
methodology shown in Fig. 2-14.
1 Mains power input
2 Control cable
3 Motor cable
4 Footprint filter
5 Metal back plate
6 Use suitable clips to fix motor and control cable screens securely to metal back plate
7 Screening cables
Fig. 2-14 Wiring Guidelines to Minimize the Effects of EMI
Frame Sizes D, E and F
The Gland Plate is factory fitted. The installation of the screening is accomplished
using the same methodology as in frame sizes A, B and C.
Frame Sizes FX and GX
Connect the wire shields to the shield connection points shown in the connection
drawing (see Fig. 2-9 and Fig. 2-10) .
For this purpose twist the motor leads and screw all of them together to the shield
connection point for the motor lead.
When using an EMI filter, a power commutating choke is required. The wire shields
should be fastened to the metallic mounting surface as close as possible to the
components.
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0
2 Installation
43