Innotech Genesis V4 System - Manual (Page 57)

Installation Instructions for Innotech Genesis Systems
Edition 011100 4-2
Make sure all units are located to provide safe access for operation and maintenance.
Make sure all units are located where they are not subject to temperature extremes
beyond the 0-40 C range.
Make sure all units are located as far as practical from high current or high voltage
cables or sources of RF emissions.
4-1.1.2. Electrical Inspection. Inspect for the following:
Make sure all sources of electrical power, including power to ancillary items are off.
Check all input and output connections against the computer-generated wiring diagram
supplied for your installation. Ensure all connections are in accordance with the wiring
diagram and that connections are solidly made.
Ensure all enclosures are solidly earthed.
Check all input and output cabling; ensure cabling requirements of Section 3 are met.
Make sure all LEM and RMI ribbon cables are run outside of the enclosure cable ducts.
Make sure all cables, especially analogue input cables, are routed clear of high current,
high voltage or high speed switching current cables and other sources of interference.
If using Remote Expansion Modules (REMs) make sure the cable run between the
Remote Module Interface (RMI) and REMs does not exceed 500 metres in length.
Inspect all cables running external to the enclosure. Ensure they are free from potential
mechanical damage, such as impacts and chafing.
4-1.2. CHECK INPUT AND OUTPUT WIRING. The purpose of checking the
input and output wiring is two-fold. The wiring is checked to verify that it is connected
properly, thus ensuring proper operation of the system. The wiring is also checked to ensure
the absence of any external voltages that could damage a Genesis unit. The following
paragraphs contain instructions for checking inputs and outputs.
4-1.2.1. Checking Power Inputs. Power inputs must be checked to ensure that the
applied voltage is of the proper level and, in the case of DC power inputs, of the correct
polarity. Table 4-1 shows the input voltage specifications for the various types of units.
Most units operate on 24Vac 10%, 50/60Hz. Controllers can be provided with an optional
24Vdc 10% power capability. Procedures for checking the 24Vac and 24Vdc units are
similar, except that: for 24Vac units, AC Neutral must be at earth potential and connected
to Terminal 2. For 24Vdc units, Terminal 1 must be positive and Terminal 2 negative.
Two units: the GENII RPTR Repeater Module and the GENII MP REM Multipoint Module
use 240Vac input power. Since these units are powered directly from standard power
points, it is not necessary to check their power inputs unless a fault in the power mains is
suspected. Suspected power mains problems should be referred to a qualified electrician.
Some Local Expansion Modules and Remote Expansion Modules receive their operating
power from the associated controller through the LEM/RMI ribbon cable (See Table 4-1).
It is not necessary to check voltage for these units. However, the LEM/RMI Cable should
be inspected to ensure it is undamaged and the connectors are firmly seated.