10
INM4500-2
Mar 2009
6
UNIT DESCRIPTIONS, SETTING-UP AND CONNECTIONS
This section describes the function (briefly), the setting-up procedure and the wiring connections for each
MTL4500 Series unit. For a fuller functional description and a detailed technical specification, refer to
the individual datasheets, which can be found on the MTL web site at
http://www.mtl-inst.com
or in the
current MTL IS catalogue. If a fault is suspected, first check that the power LED is lit (not applicable to
loop-powered devices). If necessary, check that all signal and power plugs are properly inserted, that
no wires are loose and that the unit is mounted correctly. If operation is still suspect, the unit should be
replaced with a servicable unit.
There are no replaceable parts insided MTL4500 Series units, so any that appear to be inoperative
should be returned to the manufacturer/supplier for repair or replacement.
WARNING
When disconnecting units for maintenance purposes,
take care to segregate hazardous and safe-area
cables.
Short circuit hazardous-area cable cores to an
IS earth or insulate and secure the ends.
Insulate and secure safe-area cables.
If testing a unit 'in situ' note that the test equipment
used MUST be intrinsically safe.
•
•
The rest of this section is divided into sub-sections based upon the type of module, as follows.
6.1 Digital Input modules
MTL4501-SR, MTL4510, MTL4510B, MTL4511, MTL4513, MTL4514, MTL4516, MTL4516C, MTL4517
6.2 Digital Output modules
MTL4521, MTL4523, MTL4523R, MTL4523L, MTL4524, MTL4524S, MTL4525, MTL4526
6.3 Analogue Input modules
MTL4541, MTL4541B, MTL4541P, MTL4544, MTL4544B
6.4 Analogue Output modules
MTL4546, MTL4546C, MTL4546Y, MTL4549, MTL4549C, MTL4549Y
6.5 Temperature Input modules
MTL4575
6.6 General
modules
MTL4599, MTL4599N
6.7 PCS45/PCL45USB configurator for MTL temperature converters
Note:
Any LED indicators provided on the modules will display in the following colours:
LED label
LED colour
PWR
(power)
Green
STS
(status)
Yellow
LFD
(line fault)
Red
FLT
(fault)
Red
OPx
(o/p status)
Yellow
