Recognising and eliminating EMC interferences
26
l
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
To Next Page
Need help?
General
