16 Installation Guide
www.johnsoncontrols.com Issue Number: 2
Figure 4-5 External EMC filter wiring
Notes:
• The M3 nut is provided to connect the shield to ground (earth).
• Physically separate the input and output cables.
• All input and output cables should be fully shielded, with the shield directly fixed to ground i.e.
not using pigtail. The motor cable shield should be connected to the ground connection nut/tab.
• Do not run input cables alongside output cables. Do not bundle input and output cables
together.
• The input ground wire should be connected to the enclosure box. The ground connection
between the enclosure and the base plate is made via the mounting screws.
• Ideally, the motor cable shield should be clamped directly to the back plate.
• The EMC filter body needs to be fixed to the same grounded metal part (e.g. the back plate) as
the motor cable shield.
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