ABB Advant Controller 450 User Manual

Advant
®
Controller 450 User’s Guide
Section 2.1.6 Cables
3BSE 002 415R701 Rev A 2-9
hinders the use of connection units for voltage distribution. In such cases, you can use a bar with
the terminal block and fuse equipment required by the application.
If the transducer has galvanic isolation of the supply from the electronics otherwise, you can
ground its signal zero freely and where it is most suitable for measurement accuracy without
special voltage supply requirements such as group division, fusing and grounding.
2.1.6 Cables
When you are planning for the cable routing in the plant and selecting suitable cables to use,
there are some restrictions and rules to follow. These touch upon, among other things:
• The distance between Advant OCS cables and non-Advant OCS cables.
• The routing of communication cables.
• Mixing of signals and signal types within cables.
• The need for shielded cables.
For further information, please refer to the general document, Interference-free Electronics
Design and Applications, which also gives examples for choosing cables.
All cables are normally guided into a cabinet from below.
2.1.7 Power Supply and Fusing
General
Normally, supply voltage to Advant OCS supply units and for field equipment can be obtained
from the plant a.c. or d.c. supply.
A summary of the main requirements of the supply from a planning viewpoint follows.
Primarily an A, B and C network should be available as applicable.
Supply A and B refer to redundant networks.
Supply C is feeding the battery backup unit and modems which use a.c. power supply. In the
tropical cabinet version the heating element is also included.
Supply C is always an a.c. supply, regardless of whether a.c. or d.c. is utilized otherwise.
Preferably supply C should be an uninterruptable power supply. In situations where redundant
network A/B is used you can order a power distribution unit, SV542/543, which includes a
selector relay and an isolation transformer. The relay selects between, for example network A
and B and the transformer makes a secondary grounding of the network possible (adaption
class III/class II).
Class II, class III states the network quality with respect to for example, level of disturbances,
voltage variations, and so on. (according to IEC standards). Class II denotes higher quality than
class III.
You can use power supply units made by other vendors for, for example sensor supply, and
locate those units in an I/O cabinet. Such units must satisfy interference requirements in
accordance with the relevant standards in the same test classes as the Advant OCS equipment
and they must be CE-marked if equipment is going to be used within the EU and EFTA area.

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English