Innotech Genesis V4 System User Manual

Page 45

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Installation Instructions for Innotech Genesis Systems

Edition 011100

3-19

3-4.2.

REMOTE EXPANSION MODULES.

The following paragraphs contain

wiring information for the following types of REMs used in the Genesis II System:

GENII RMI Remote Module Interface

GENII AI REM Analogue Input Module

GENII AO REM Analogue Output Module

GENII DI REM Opto Isolated Digital Input Module

GENII DI REM Dry Contact Digital Input Module

GENII DO REM Relay Output Module

GENII CS REM Control Station Module

GENII MZS REM Multi Zone Station Module

GENII MP REM Multipoint Module.

The RMI functions as a bridge between the controller and the other REMs. Communication
between the controller and the RMI is by way of a ribbon cable connected to the controller’s
LEM/REM Connector. Communication between the RMI and the other REMs is by way of a
standard RS485 Comms cable network.

The method for connecting the modules to electrical power and to the RS485 Comms cable
system is similar for most of the different types of modules, except where otherwise noted.
The following two paragraphs provide detailed instructions for connecting electrical power and
the RS485 system, respectively.

3-4.2.1.

REM Power Connections.

Electrical power requirements and connections

for all remote expansion modules, except the RMI and MP REMs, are the same. Power
requirements and connection information for the RMI and MP REMs are explained in
Paragraphs 3-4.2.3 and 3-4.2.11 respectively. Information in this paragraph is for all other
REMs.

Power requirements are 24Vac,

±

10% at 50/60Hz. Refer to the appropriate paragraph

below for the physical location of the power connection block within each type of REM. At
the power connection block, the 24Vac power terminals are:

Terminal 1 = 24Vac Supply

Terminal 2 = 0Vac Supply

Terminal 3 = Earth

Terminal 3 is for the protection of the RS485 Comms circuitry and must be connected to a
good, electrically bonded earth. This may be the earth bus bar of the switchboard or the
point that connects the chassis of the equipment the module is located in. This connection
is independent of and in addition to the earthed AC Neutral at Terminal 2.

CAUTION

DO NOT CONNECT TERMINAL 3 TO TERMINAL 2.

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