IMAC2B009 V2
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Ampcontrol Pty Ltd
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iMAC System User Manual
iMAC2B009 V4
– 10/18
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Term
Definition
SIM-T
Serial Interface Module (Trolex
™) that connects to the iMAC L1 fieldbus. This
module provides an interface between a Trolex
™ TX94 Series Controller and the
iMAC L1 fieldbus.
SLB
Slave Line Barrier that connects to the iMAC L1 fieldbus. This barrier allows the
connection of non-intrinsically safe modules to an intrinsically safe iMAC L1
fieldbus.
SQM
Sequence Module that connects to the iMAC L1 fieldbus. This module allows
sequenced control of equipment using the iMAC2 Controller's sequencing bits.
SSW
Speed Switch Module that connects to the iMAC L1 fieldbus. This module provides
conveyer belt slip protection and speed indication.
Fieldbus System Configurations
The iMAC fieldbus can be configured as either a 2-wire or 3-wire system depending on the required
application. Each of these configurations can be used within hazardous areas, provided that the fieldbus is
correctly installed utilising an iMAC MLB intrinsically safe barrier.
1.4.1 2-Wire System
2-Wire systems are typically used for low cost emergency stop systems or for
monitoring systems that don’t
require an emergency stop function such as a mine wide gas monitoring system. If the iMAC2 Controller
emergency stop function is not required, the EOL module is not required, however an EOL module is still
recommended for providing fieldbus diagnostic functions.
Figure 1.1: 2-Wire iMAC Fieldbus System Configuration
CR
IMAC
CONTROLLER
Stop Switches
EOL
iMAC
Input Module
B
C
Stop Switches
iMAC
Input Module
1oo1 Safety Output
