2
Interlocks with power to lock principle may only be used in special cases after a thorough evaluation of
the accident risk, since the safety guard can be opened immediately on failure of the power supply or
upon activation of the main switch.
Series-wiring
Series-wiring can be set up. In the case of a series connection, the risk time remains unchanged and the reaction
time increases by the sum of the reaction time of the inputs per additional unit specified in the technical data. The
quantity of devices is only limited by the cable drops and the external cable fuse protection, according to the
technical data. Up to 31 device variants with serial diagnostics can be wired in series.
2
The user must evaluate and design the safety chain in accordance with the relevant standards and the
required safety level. If multiple safety sensors are involved in the same safety function, the PFH
values of the individual components must be added.
2
The entire concept of the control system, in which the safety component is integrated, must be
validated to the relevant standards.
2.4 Warning about misuse
2
In case of improper use or manipulation of the safety switchgear, personal hazards or damages to
machinery or plant components cannot be excluded. There are no residual risks, provided that the
safety instructions as well as the instructions regarding mounting, commissioning, operation and
maintenance are observed.
2.5 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from defective mounting or failure to comply
with the operating instructions manual. The manufacturer shall accept no liability for damages resulting from the
use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary repairs, conversions and modifications to the
device are strictly forbidden, the manufacturer shall accept no liability for damages resulting from such invasive
work, arbitrary repairs, conversions and/or modifications to the device.
2.6 Technical Data
Approvals - Standards
Certificates
TÜV
cULus
ECOLAB
EAC
FCC
IC
General data
