62 Planning the electrical installation
Selecting the control cables
Shielding
Use only shielded control cables.
Use a double-shielded twisted pair cable (figure a below) for analog signals. Use one
individually shielded pair for each signal. Do not use common return for different
analog signals.
A double-shielded cable (figure a) is the best alternative for low-voltage digital
signals, but a single-shielded twisted pair cable (figure b) is also acceptable.
Signals in separate cables
Run analog and digital signals in separate, shielded cables.
Do not mix 24 V AC/DC and 115/230 V AC signals in the same cable.
Signals run in the same cable
If their voltage does not exceed 48 V, relay-controlled signals can be run in the same
cables as digital input signals. The relay-controlled signals should be run as twisted
pairs.
Relay cable
The cable type with braided metallic screen (for example ÖLFLEX by LAPPKABEL,
Germany) was tested and approved by ABB.
Control panel cable
In remote use, the cable connecting the control panel to the drive must not exceed
100 m (330 ft). If multiple panels or drives are connected, the total length of the panel
bus must not exceed 100 m (330 ft).
The cable type tested and approved by ABB is used in control panel option kits.
Suitable cables are CAT 5e unshielded or shielded twisted pair cables.
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