
171019 v2.00-RiA Operating instructions SG-RST 153 Page 5/15
Safety
Without a test signal, the control unit corresponds only to category 1.
The control unit is designed only for safety edges with an 8k2 monitoring resistor.
Safety mats and safety bumpers may not be connected.
The performance level PL is dependent on the output of the connected load. PL d can
also be achieved in some cases. We will be glad to assist you.
Intended use
The control unit is designed for signal processing of a pressure-sensitive protective
device. It evaluates the output signals of sensors with monitoring resistor 8k2. The
integrated output signal switching device (OSSD) transmits the evaluated safety sig-
nals directly to the downstream control.
The product complies with ISO13849-1:2015 Category2 PLc. So that the safety
classification is retained, the downstream control must be of the same or a higher
category.
Safety
Safety instructions
ÄDo not use in ATEX zones
Do not use the Control Unit in potentially explosive environments (ATEX). The
control unit is not authorised for use in these zones.
ÄDisable in case of error
Disable the safety device in case of malfunctions or visible damage.
ÄPrevent restarting of the machine
As long as a hazard continues to exist, take measures to prevent the machine
from restarting, for example by means of a startup lockout.
ÄPrevent electric shock
When working on electrical systems, always disconnect them from the power
supply and secure them against being switched on again, to prevent injuries from
electric shock.
For your own safety the following safety instructions apply.
ÄEnsure careful configuration of interface
The quality and reliability of the interface between the safety device and the ma-
chine aects the overall safety. Take special care when setting up this interface.