Selecting The Control Cables - ABB ACS355 series User Manual

44 Planning the electrical installation

Selecting the control cables


General rules
All analog control cables 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 analog signals. Employ one individually shielded pair for each signal. Do
not use common return for different analog signals.
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
Run analog 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.

Control panel cable
In remote use, the cable connecting the control panel to the drive must not exceed
3 m (10 ft). The cable type tested and approved by ABB is used in control panel
option kits.
b
Single-shielded twisted
multipair cable