Selecting The Control Cables; Shielding; Signals In Separate Cables; Signals Allowed To Be Run In The Same Cable - ABB ACS580-07 Hardware Manual

64 Guidelines for planning the electrical installation

Selecting the control cables

￭

Shielding

All control cables must be shielded.
Use a double-shielded twisted pair cable for analog signals. This type of cable is
recommended for the pulse encoder signals also. Employ one individually shielded pair for
each signal. Do not use common return for different analog signals.
A double-shielded cable (figure a below) is the best alternative for low-voltage digital signals
but single-shielded (b) twisted pair cable is also acceptable.
a
￭

Signals in separate cables

Run analog and digital signals in separate, shielded cables. Never mix 24 V DC and 115/230
V AC signals in the same cable.
￭

Signals allowed to be run in the same cable

Relay-controlled signals, providing their voltage does not exceed 48 V, can be run in the
same cables as digital input signals. The relay-controlled signals should be run as twisted
pairs.
￭

Relay cable type

The cable type with braided metallic screen (for example ÖLFLEX by LAPPKABEL, Germany)
has been tested and approved by ABB.
￭

Control panel cable length and type

In remote use, the cable connecting the control panel to the drive must not be longer than
three meters (10 ft). Cable type: shielded CAT 5e or better Ethernet patch cable with RJ-45
ends.

Routing the cables

Route the motor cable away from other cable routes. Cables of several motors can be run
in parallel installed next to each other. The motor cable, input power cable and control cables
should be installed on separate trays. Avoid long parallel runs of motor cables with other
cables in order to decrease electromagnetic interference caused by the rapid changes in
the drive output voltage.
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 drive.
The cable trays must have good electrical bonding to each other and to the grounding
electrodes. Aluminum tray systems can be used to improve local equalizing of potential.
A diagram of the cable routing is shown below.
b