Table of Contents
Advertisement
DOK-CONTRL-ILPSDO8****-AW04-EN-P
Rexroth Inline Module with Safe Digital Outputs R-IB IL 24 PSDO 8-PAC
2.2
Electrical Safety
Direct/indirect contact
Power supply units for
24 V supply
Insulation rating
Installation and configuration
WARNING
Disregarding instructions for electrical safety may result in hazardous body cur-
rents and the loss of functional safety.
In order to ensure electrical safety, please observe the following points.
Protection against direct and indirect contact according to VDE 0100 Part 410
must be ensured for all components connected to the system. In the event of an
error, parasitic voltages must not occur (single-fault tolerance).
This can be achieved by:
•
Using power supply units with safe isolation (PELV).
•
Decoupling circuits, which are not PELV systems, using optocouplers,
relays, and other components, which meet the requirements of safe isolation.
Only use power supply units with safe isolation and PELV according to EN
50178/VDE 0160 (PELV). This prevents short circuits between primary and
secondary sides.
Make sure that the output voltage of the power supply does not exceed 32 V even
in the event of an error.
When selecting the operating equipment, please take into consideration the
contamination and surge voltages, which may occur during operation.
The R-IB IL 24 PSDO 8-PAC module is designed for surge voltage category II
(according to DIN EN 60664-1). If you expect surge voltages in the system, which
exceed the values defined in surge voltage category II, take into consideration
additional measures for voltage limitation.
Please observe the instructions for installing and configuring the system
(see
Chapter "Documentation" on page
WARNING
The user is obliged to design the devices used and their installation in the system
according to these requirements. This also means that existing plants and systems
retrofitted with PROFIsafe must be checked and tested again in this respect.
Bosch Rexroth AG
Hazardous body currents and the loss of func-
tional safety
12).
Depending on the application, incorrect
installation and upgrades can pose serious
risks for the user
9/94
For Your Safety
Advertisement
Table of Contents
