Innotech Genesis V4 System - Manual (Page 41)

Installation Instructions for Innotech Genesis Systems
Edition 011100 3-15
Each type of LEM provides four additional signal channels for the controller. The Genesis II
Digital Controller can use up to eight LEMs, in any combination, thus achieving 32 extra
signal channels.
There are critical requirements for the physical placement of the LEMs; refer to Section 2.
When installing the LEM cable between the controller and the LEMs, observe the following
precautions:
•
The LEM cable should be run external of cable ducts.
•
A maximum of 300mm of LEM cable is allowed between LEMs. The overall cable
length must not exceed 1.5 metres.
•
Ensure the LEM cable plug is inserted into the keyed sockets on the controller and LEMs
in the correct orientation.
3-4.1.1. AIM Analogue Input Modules. Each AIM (Figure 3-6) occupies one of
the controller’s analogue input channels; however, each AIM has five analogue input
channels, thus providing the controller with an overall increase of four channels per AIM.
The AIM does not require power terminals since operating power is supplied from the
controller by way of the LEM cable.
The AIM requires an AISC for each input channel to determine the signal type for each
input. An AISC (Part Number GENII AIM AISC) at the AIM’s input to the controller is
also required. AISCs are not provided with the AIM and must be ordered separately. The
computer-generated materials list shows the number of AISCs, of each type required for the
controller and the AIM. The computer-generated wiring diagram shows the locations of the
AISCs. Installation of the AISCs is part of the commissioning process and instructions are
provided in Section 4.
Figure 3-6. Analogue Input Module.
Three terminals on the upper left side of the AIM are for the analogue cable to the
controller. Terminal 1 is not internally connected to the AIM and may be used as a tie point
ANALOGUE SIGNAL
TO CONTROLLER
LEM CABLE
CONNECTOR
ANALOGUE
INPUTS
GENESIS II
ANALOGUE INPUT MODULE