66 Rockwell Automation Publication ICSTT-RM448M-EN-P - February 2021
Chapter 4 Before You Begin
The controller input and output modules incorporate galvanic isolation.
Nevertheless, it is possible that a particular application will require the
provision of barrier strips with galvanic isolation, for example to provide
consistency with an existing installation. In these cases, there may be a
separate intrinsic safety ground as well.
Specify software
requirements
For information about supported operating systems and other software
product version support, refer to product release notes from the Product
Compatibility and Download Center (PCDC): rok.auto/pcdc
.
Design Considerations for
Maintenance Activities
Maintenance Activities
The design of the installation must allow preventive and corrective
maintenance activities to take place. Corrective maintenance tasks will
embrace the identification and renewal of defective modules and other
assemblies and, when exhausted, renewal of the back-up battery within the
T9110 processor module.
Fuses on the termination assemblies can be replaced so access to the fuses is
required. There are no user-serviceable parts inside modules therefore repair
is by replacement; defective modules should be returned to Rockwell
Automation for investigation and repair.
Design Provisions
The design of the controller installation should make the following provisions:
• Clear access to remove and install modules, termination assemblies, base
units and security dongle (Program Enable key). Repair of controller
modules will be by module replacement.
WARNING: EXPLOSION HAZARD
Do not connect or disconnect equipment, while the circuit is live or
unless the area is known to be free of ignitable concentrations or
equivalent.
AVERTISSEMENT: RISQUE D’EXPLOSION
Ne pas connecter ou déconnecter l’équipement alors qu’il est sous
tension, sauf si l’environnement est exempt de concentrations
inflammables ou équivalente.
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