Section 6 Wiring
Cable routing
M&I – AC 900F Controller
85
Cable routing
•
Ensure proper cable routing during wiring.
•
Sort the cables in different cable groups (power current cables, power supply
cables, signal cables and data cables).
•
Make sure to lay signal and data cables separately from power current cables,
i.e. in separate conduits or cable bundles. The distance should be at least 20
cm.
•
Signal and data cables should be installed close to earthed surfaces.
Cable shields
•
Use only shielded data cables. The shield must be earthed on both sides. Make
sure that no compensating currents pass through the cable shield. A current-
carrying equipotential bonding line can be used for this purpose.
•
If a cable shield is earthed on one side, it only provides protection against
capacitive coupling and low-frequency interference (50/60 Hz ripple voltage).
•
Only use braided-shield cables. Foil shields exhibit low mechanical stability as
well as poor contact and HF properties.
•
Only metallic or metal-coated connectors must be used for shielded data
cables.
•
Use only shielded cables for analog signals. Earth the shield on one end only
for the transmission of small signals.
•
Earth the cable shield using a clamp directly at the entry into the switch
cabinet. Guide the shield up to the module without any interruption.
•
There must be a low-impedance connection between the PE bar and the shield
bar.
Содержание AC 900F
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Страница 3: ...Freelance 2016 Mounting and Installation Instructions AC 900F Controller ...
Страница 58: ...CP C MM messaging module Section 3 Modules 58 M I AC 900F Controller ...
Страница 70: ...TB 870F terminal block Section 4 Accessories 70 M I AC 900F Controller ...
Страница 98: ...Controller configuration via terminal program Section 7 Commissioning 98 M I AC 900F Controller ...
Страница 122: ...Update Restore Section 8 Service 122 M I AC 900F Controller ...
Страница 131: ...Section 9 Technical Data CI 773F M I AC 900F Controller 131 Approvals cULus UL Class 1 Div 2 Groups A B C D EAC ...
Страница 152: ...CP A CM Section 9 Technical Data 152 M I AC 900F Controller ...
Страница 154: ...Index 154 M I AC 900F Controller ...
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