For your safety
109241_en_03 PHOENIX CONTACT 13 / 232
Requirements Knowledge of the following topics and products is required:
– The safety modules and safe extension modules of the PSRmodular system that are
used
– The I/O devices used (extension devices, sensors, actuators)
– Operation of the PSRmodular Software configuration software
– Safety technology standards
– Safety regulations in the field of application
Error detection Depending on the wiring and the parameterization, the safety modules and safe extension
modules of the PSRmodular system detect errors within the safety equipment.
Do not open the housing It is prohibited to open the
module
housing. If the housing is opened, the function of the
PSRmodular modules can no longer be ensured.
Mismatching and polarity
reversal of connections
Take measures to prevent the incorrect connection, polarity reversal, and manipulation of
connections.
The device connection terminal blocks are not coded as standard. The optional coding ac-
cessories can provide you with increased safety against connection mismatching and re-
verse polarity. If you do not use the coding accessories, ensure that alternative validation
measures are taken.
1.4.2 Electrical safety
Direct/indirect contact Protection against direct and indirect contact in accordance with VDE 100 Part 410 must be
ensured for all components connected to the system. In the event of an error, parasitic volt-
ages must not occur (single-fault tolerance).
Measures required:
– Using power supply units with safe isolation (PELV)
– Decoupling circuits, which are not PELV systems, with the following components: op-
tocouplers, relays, and other components which meet the requirements of safe isola-
tion
Safe isolation Only use devices with safe isolation if dangerous contact voltages can occur at their con-
nections.
WARNING: Loss of safety function/hazardous shock currents
Incorrect installation can result in the loss of the safety function as well as hazardous
shock currents. Depending on the application, there may be serious risks for the user.
• Observe the notes on electrical safety.
• Observe the warning instructions provided elsewhere in this document.
• Plan the devices used and their installation in the system according to the specific re-
quirements.
• Recheck plants and systems that have been retrofitted with the safety relay module.
• Observe the information in the user documentation of other devices used (e.g., sen-
sors, actuators or extension devices).
To Next Page
Loading...