GE RSTi-EP Functional Safety Manual page 44

Chapter 7. Installation
Installation
Explosion risk - During assembly work, sparks can form and surfaces may
become excessively hot.
• Before assembly, make sure that there is not a potentially explosive
atmosphere.
• For applications in potentially explosive atmospheres, observe the
installation and construction requirements of EN 60079- 15 and/or country-
specific regulations.
Dangerous contact voltage:
• Carry out assembly and wiring work on the RSTi-EP station only when the
power supply is disconnected.
• Make sure that the place of installation (switch cabinet etc.) has been
disconnected from the power supply.
The product can be destroyed by electrostatic discharge.
The components in the RSTi-EP series can be destroyed by electrostatic
discharge.
• Ensure that personnel and work equipment are adequately grounded.
Carry out all work during the installation/removal and replacement of components as described in
the RSTi-EP User Manual (GFK-2958) manual.
When using EP-19xx modules, observe the following additional notes:
•
EP-19xx modules may only be installed in switch cabinets which meet protection class IP 54.
•
Use wire-end ferrules in combination with flexible/multi-conductor cables.
•
Ensure that external short circuits due to the cabling cannot occur for safety inputs in the
configuration without test pulses (refer to DIN EN ISO 13849-2 Table D.4).
Note: Once an electronic unit is removed from a power-feed module, the inputs and outputs of the
following modules are no longer supplied with power. With EP-19xx modules, this is
equivalent to triggering the connected safety equipment.
40
Warning
Warning
Caution
RSTi-EP Functional Safety Manual GFK-2956A