Lenze 8200 vector series

Recognising and eliminating EMC interferences
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EDBEMV82EV EN 3.0
4 Recognising and eliminating EMC interferences
Interference Cause Remedy
Unshielded motor cable Useasuitablecable:
• Use a shielded motor cable
EMC shield sheet with shield clamps has
not been used
Optimise shielding of the motor c able:
• Optimise shielding according to Instructions
Interferences of analog setpoints of the own
or other devices and measuring systems
Motor cable shield is interrupted by
terminals, s witches etc.
Optimise the arrangement:
• Spatially separate the components from other parts with a distance of
at least 100 mm
• Insert motor interference suppression module
Additional, unshielded cabl e s are
installed within the motor cable (e.g.
temperature monitoring)
Optimise wiring:
• Separate and shield additional cables
• Use EMC kit E82ZPEx
Unshielded connection ends of the motor
cablearetoolong
Optimise wiring:
• Shorten unshi elded cabl e ends to maximall y 40 mm
Filter measures on the mains side are
not sufficient
Optimise interference suppression:
• Use additional RFI filters acc. to table (E 15 ff)
Motor cable capacitance is too high Optimise motor cable:
• Use low-ca pacitance motor cables!
Conducted interference level is exceeded on
the mains side
Motor cable terminals are directly
mounted beside the supply terminals
Optimise wiring:
• Spatially separate motor cable terminals from the supply terminals and
other control terminals with a distance of at least 100 mm
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Mounting plate in the control cabi net is
varnished
Optimise PE connection:
• Carefully remove the varnish
• Use zinc-coated mounting plate
HF short circuit Check installation:
• Cable routing