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VIPA HMI
4.5 Checklist for the EMC-compliant installation of controllers
EMV-measures
Connection of the inactive parts
You should take special care to check the connections of:
n
Module racks
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Frames
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Screen and protected earth conductor
Are all the inactive metal parts interconnected by means of large-sur-
face and low-impedance connections?
Has a proper connection been installed with respect to the ground/pro-
tected earth conductor system?
Has the isolation been removed from varnished and anodized surfaces
or have these connections been fitted with special contact washer?
Have the connection been protected from corrosion, e.g. by means of
grease?
Have doors been grounded by means of grounding straps connected
to the body of the cubicle?
Cable routing
Cabling divided into groups?
Power cables (230 ... 400V) and signal lines installed in separate
channels or bunches?
Potential compensating
When installing the equipment at separate locations, check the instal-
lation of the potential compensating line.
Cable screen
All covers of plugs are metallic?
All analog and data lines installed screened?
Line screens attached to the screening or the protected earth con-
ductor?
Have the screens been connected by means of large-surface and low-
impedance cable clamps?
Cable screens grounded both-sided where possible?
Inductors
Have the coils of contactors controlled by means of contacts been
connected to snubber networks?
HB160 | TP | 62I-JID0 | GB | 15-36
Checklist for the EMC-compliant installation of controllers
Installation Guidelines
Space for Notes
53
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