Innotech Genesis V4 System - Manual (Page 28)

Installation Instructions for Innotech Genesis Systems
Edition 011100 3-2
NOTE
If any data presented in this manual disagrees with information in the
applicable instruction manual, information in the manufacturer’s
instruction manual takes precedence. Customers are encouraged to
contact Innotech Control Systems Australia for further information or
clarification of information presented herein. Use the address or
phone/fax number shown on the cover of this instruction manual.
Cabling plays an important role in the installation of the Genesis Systems. The following general
cabling guidelines should be observed:
•
In all cases, use electromagnetic-shielded cable for sensor wiring.
•
When necessary to protect cabling from physical damage, both shielding and physical
protection may be provided by running the cable in a metal conduit. Alternatively, use steel
wire armoured (SWA) cable, which also contains an electromagnetic shield.
•
Avoid running cables in the vicinity of high voltage power cables or cables carrying switching
voltages/currents. This especially applies to sensor signal cables.
•
Interconnecting cables must have multi-strand conductors with a cross-sectional area of 1mm
2
for each conductor.
•
The earth cable to Genesis II enclosures must be 2.5mm
2
.
•
For analogue inputs to the controller, a 16-conductor (0.5mm
2
) shielded cable is required.
Table 3-1 provides assistance in determining the cabling requirements for various installation
configurations. It shows the dimensions, wire gauge designations and resistance values per unit
length for common wire sizes. Use Table 3-1 to determine specific cabling requirements for your
installation.
Table 3-1. Nominal Resistance for Wire Sizes at 20
°
C.
CONDUCTOR
AREA (mm
2
)
DIAMETER
(mm)
NEAREST
SWG OR
BWG
NEAREST
AWG
OHMS
PER 100
METRES
0.5 0.80 21 20 3.44
1.0 1.13 18 17 1.72
1.5 1.38 17 15 1.15
2.0 1.60 16 14 0.86
2.5 1.78 15 13 0.69
Notes:
1. SWG = Standard Wire Gauge, BWG = British Wire Gauge, AWG = American Wire Gauge.
2. All SWG, BWG & AWG numbers are for the next largest wire if a direct equivalent to the mm
2
wire size is not available.
3-3. CONTROLLER WIRING.
The following paragraphs contain input/output connection information for the Genesis II Digital
Controller, the Genesis II Mid Points Controller and the Genesis I Digital Controller. The
Genesis II Configuration Software, which is used to configure and program the controller,