Bosch Rexroth 4WRPD - 2 Safety instructions; 2.1 About this chapter; 2.2 Intended use

8/48 Safety instructions
Bosch Rexroth AG, 4WRPD(H), 4WRPQ(H), 4WRPF(H), 4WRLD, 4WRLF, 4WRLQ, 5WRPF10, 5WRPQ10; RE 29391-B/05.2021
Abbreviation Meaning
PL Performance Level according to EN ISO 13849-1
SELV Separated extra-low voltage
PLC Programmable Logic Control
2 Safety instructions
2.1 About this chapter
The valves on Multi-Ethernet basis described below have been manufactured
according to good engineering practice. However, there is still a risk of personal
injury and/or damage to property if you do not observe this chapter and the safety
instructions in this documentation.
 Read this documentation completely and thoroughly before working with the
product.
 Keep this documentation in a location where it is accessible to all users at all
times.
 Always include the required documentation when you pass the valve on to third
parties.
2.2 Intended use
A valve on Multi-Ethernet basis is a valve with electrical control for use in two-
channel safety applications (cat. 3, PL d and cat. 4, PL e according to EN 13849-1)
as switch-off element for one channel.
Depending on the application and the requirements of work equipment-related
standards according to EN 13849-1, the user must provide appropriate monitoring/
plausibility checks which comply with the required diagnostic coverage DC
avg
using
a higher-level control.
The valve is exclusively intended for integration into a machine or system or to
be assembled with other components to form a machine or system. The product
may be commissioned only if it is integrated in the machine/system for which it is
designed.
The operating conditions and the performance limits specified in the technical data
sheet must be observed.
The valve on Multi-Ethernet basis may be used as follows:
• For open and closed-loop (alternating) control of position, pressure, force,
velocity, pressure differential and flow
For operation of the device, a higher-level control logic with appropriate I/O
components is additionally required, which, in conjunction with the valve on Multi-
Ethernet basis, holistically controls the motion sequence of the machine and also
monitors it in terms of safety.