ABB ACS150 series, User Manual

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33
Planning the electrical installation
Selecting the control cables
General rules
The analog control cable (if analog input AI is used) and the cable used for the
frequency input must be shielded.
Use a double-shielded twisted pair cable (Figure a, for example, JAMAK by Draka
NK Cables) for the analog signal.
A double-shielded cable is the best alternative for low-voltage digital signals, but a
single-shielded or unshielded twisted multipair cable (Figure b) is also usable.
However, for frequency input, always use a shielded cable.
a
Double-shielded twisted
multipair cable
b
Single-shielded twisted
multipair cable
Run the analog signal and digital signals in separate cables.
Relay-controlled signals, providing their voltage does not exceed 48 V, can be run in
the same cables as digital input signals. It is recommended that the relay-controlled
signals are run as twisted pairs.
Never mix 24 V DC and 115/230 V AC signals in the same cable.
Relay cable
The cable type with braided metallic screen (for example, ÖLFLEX by LAPPKABEL)
has been tested and approved by ABB.