Rockwell Automation MAI32AD 32-Analogue Input Module Differential Input - Manual (Page 13)

MAI32*AD October 2005 – Issue 4 13
Triguard SC300E MAI32*AD 32-Channel A/I Module Differential Input
SERVICING
SCOPE
System repair is by module replacement. Faulty modules are not repairable in the field, they
should be replaced by new modules and returned for repair.
CAUTION 1
Before fitting a new module ensure that the 321/320 link setting is the same as that on the old
module.
CAUTION 2
The module contains components that may be electrostatically sensitive, it should be
transported and stored in its original packaging material.
DIAGNOSIS
The TriBuild workstation is used for fault diagnosis. In the case of an Input/Output fault the
Health LED on the faulty module will be extinguished.
CAUTION 3
Do not use a mains-powered multimeter on the front panel test points.
CONFIGURATION
The only configuration necessary is the correct location of the 321/320 Link as shown in Figure
1-1 Ensure that the link configuration on the new module is identical to that on the old module.
REMOVAL AND REPLACEMENT
Preparation
Before removal /replacement ascertain if the module under consideration is used in the single
or dual hot repair configuration.
CAUTION 4
Failure to take the faulty module off-line before removing it from the chassis could trigger a fault
alarm or cause plant shutdown.