ABB 07CR41, Operating Manual

Page: 49 / 124

Advant Controller AC 31 / Issued: 08.99
4 – 1 Installation
3
4 Installation
This chapter contains detailed information on the cabling of the individual products and the
main implementation and addressing rules.
4.1 Implementation of an AC31 system
The AC31 product range has been developed for operation in extreme industrial environments.
The correct operation of these products can only be ensured if certain rules are observed.
These rules relate to the assembly conditions, the input/output cabling, earthing, the
connection of the CS31 system bus and the different types of power supply.
4.1.1 Assembly conditions
The products in the AC31 range can be mounted in two different ways. They may be installed
either vertically or horizontally (vertical assembly is only possible with certain restrictions, e.g.
reduction of the load, see also page 3–1):
-
either on a DIN rail 35 mm
-
or by means of two screws M4 directly onto the cabinet mounting plate.
Assembly in a cabinet:
Operating temperature from 0 to 55 °C. Make sure that there is sufficient free space around
the cabinet to allow the heat to dissipate properly. We recommend that the cabinet be fitted
with a ventilation system where necessary.
Warning: Avoid placing any devices which generate heat directly next to these products (e.g.
transformers, mains supply, power contactors ...).
All electrical connections are made via removable terminal blocks with a maximum wire cross
section up to 2.5 mm
2
.
The reference value for the torque is 0.8 Nm.
4.1.2 Input/output cabling
Certain precautions should be taken to reduce installation disturbances. The cables carrying
low voltage signals should not be placed in the same cable duct as the power cables.
You must distinguish between two types of signals:
- 230 V a.c. power supply
- analog signals (use shielded cables) and low voltage (24 V d.c.).