Pilz PNOZ m B0 - Manual (Page 21)

Commissioning
Operating Manual PNOZ m B0
1002660­EN­03 21
Single output with advanced fault
detection* K1
L+
L-
K2
O0 (O2)
i0
Connection examples for semiconductor outputs
*Two loads may be connected to each safety output with advanced fault detection, even on
applications in accordance with EN IEC 62061, SIL CL 3. Prerequisite: Feedback loop is
connected, shorts across contacts and external power sources are excluded (e.g. through
separate multicore cables). Please note that, in the event of an error in the feedback loop,
the safety system switches to a safe condition and shuts down all the outputs.
Feedback loop Redundant output
Contacts from external contactors K1
L+
L-
K2
O0 (O2)
O1 (O3)
IM0
L-
Connection examples for feedback loop
6.4 Function test during commissioning
CAUTION!
It is essential to check that the safety devices operate correctly
– after the chip card has been exchanged
– after a project has been downloaded
– when the project has been deleted from the base unit's memory ("Re­
set Project" menu)
6.5 Using the chip card
NOTICE
The chip card contact is only guaranteed if the contact surface is clean and
undamaged. For this reason please protect the chip card's contact surface
from
– Contamination
– Contact
– Mechanical impact, such as scratches.