Selecting The Control Cables; Relay Cable; Control Panel Cable; Routing The Cables - ABB ACSM1 Hardware Manual

Selecting the control cables

It is recommended that all control cables be shielded.
Double-shielded twisted pair cable is recommended for analogue signals. Use one
individually-shielded pair for each signal. Do not use a common return for different
analogue signals.
Double-shielded cable is the best alternative for low-voltage digital signals but
single-shielded twisted multipair cable (Figure b) is also usable.
Run analogue 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 be run as twisted pairs.
Never mix 24 VDC and 115/230 VAC signals in the same cable.

Relay cable

The cable type with braided metallic screen (e.g. ÖLFLEX by Lapp Kabel, Germany)
has been tested and approved by ABB.

Control panel cable

The cable connecting the control panel to the regen supply module must not exceed
3 metres in length. The cable type tested and approved by ABB is used in control
panel option kits.

Routing the cables

Route the DC cabling away from other cable routes.
Where control cables must cross power cables make sure they are arranged at an
angle as near to 90 degrees as possible. Do not run extra cables through the regen
supply module.
The cable trays must have good electrical bonding to each other and to the
grounding electrodes. Aluminium tray systems can be used to improve local
equalizing of potential.
a
Double-shielded twisted
pair cable
b
Single-shielded twisted
multipair cable
Planning the electrical installation
45