Electrical installation – Lenze E82xVxxxKxxxxx User Manual
Page 116
Electrical installation
Basics for wiring according to EMC
Shielding
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116
EDS82EV903 EN 3.0
Control cables
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The cables of the analog and digital inputs and outputs must be shielded. Short (up
to 200 mm), unshielded cables must always be twisted.
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Analog cables: Place one side of the shield on the inverter.
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To achieve an optimum shielding effect in unfavourable situations (in case of very
long cables, with high interference) one shield end can be connected to PE potential
via a capacitor (e.g. 10 nF/250 V) (see sketch).
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Digital cables: Place both sides of the shield on the inverter.
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The shield connections of the control cables must have a distance of at least 50 mm
to the shield connections of the motor and DC cables.
9300vec043
Fig. 6−4
Shielding of long, analog control cables