Pilz PNOZ m EF 8DI4DO - Manual (Page 13)

Commissioning
Operating Manual PNOZ m EF 8DI4DO
1002661­EN­02 13
Input circuit Single­channel Dual­channel
Example:
E­STOP
without detection of shorts across
contacts
S1
I0 L+
Example:
E­STOP
with detection of shorts across
contacts
I0
T0
S1 S1
T1
I1
T0
I0
Connection examples for the input circuit
Redundant output
K2
L-
O0 (O2)
O1 (O3)
K1
L-
Single output
K3
L-
K4
O0 (O2)
O1 ( O3)
K1
L-
K2
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.