IMAC2B009 V2
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
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Ampcontrol Pty Ltd
– ABN 28 000 915 542
iMAC System User Manual
iMAC2B009 V4
– 10/18
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iMAC FIELDBUS MODULES
The iMAC System has a wide range of available I/O modules. This section provides an overview of each
module type currently available (at the time of publishing this document). For detailed iMAC module
information, refer to the
module’s individual datasheet.
CAUTION!
For information on correct installation practices for iMAC modules, refer
to the
IMACB094 iMAC Installation Requirements document
.
Module ordering part numbers can be found in the equipment list in Section 13.
Intrinsically Safe Barriers
There are two types of I.S. barriers available for the iMAC System: the Master Line Barrier (MLB) and the
Slave Line Barrier (SLB).
The MLB is designed to restrict the transfer of energy from non-intrinsically safe circuits to intrinsically safe
circuits by the limitation of voltage and current. The MLB allows approved modules to be connected to the
iMAC L1 fieldbus within hazardous areas. The MLB is DIN rail mounted and does not require a power
supply. The MLB
must
be located in the safe area, or in a suitable flameproof enclosure.
WARNING!
The MLB is only to be connected to L1.
Only one MLB is to be connected per L1 Fieldbus.
In order to connect non-approved modules to the Intrinsically Safe communication line they must be
connected through a SLB. The SLB is DIN rail mounted and requires an 110V or 240V power supply (model
dependent). The SLB
must
be located in the safe area, or in a suitable flameproof enclosure.
WARNING!
When installing intrinsically safe equipment,
the Conditions of
Certification must be adhered to
. Failure to comply with the
Conditions of Certification may
seriously compromise the integrity of
the system and/or its components
. The user must ensure that the
“Conditions of Safe Use” outlined in the certificate are met or the
certificate (and the I.S. rating)
will not be valid
.
For further information on the MLB and SLB modules, refer to their respective technical datasheets.