Datasheet

Relays for functional safety
Safety relays PNOZsigma
PNOZ s50
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
908
Female connector X4 Terminal Description
B1 B2 O2+ O2- Y12 Y13 Y23 Y22
x
4
B1 Supply voltage of power circuits
B2 Reference potential of the supply voltage
to the power circuits
O2+ Failsafe output for power circuit 2, positive
O2- Failsafe output for power circuit 2, negat-
ive
Y12 Reference potential for failsafe inputs for
fast shutdown, power circuit 1
Y13 Reference potential for failsafe inputs for
fast shutdown, power circuit 1
Y23 Reference potential for failsafe inputs for
fast shutdown, power circuit 2
Y22 Reference potential for failsafe inputs for
fast shutdown, power circuit 2
Supply voltage for device
Supply voltage to the device
Please note: The supply
voltage must be protected
with a fuse.
Fuse F1:
Circuit breaker, 24 VDC, 4 A,
characteristic B/C
L3
L1
L2
PE
A1
A2
L+
L-
F1
Requirements:
} When selecting the power supply, please refer to the requirements stated under Tech-
nical details [ 934].
Make sure that the supply voltage for the device (A1/A2) complies with the specified tol-
erance of -15/+20 %. If the voltage is outside this tolerance, then
– the device will change to a fault condition, if the outputs are switched on.
– a message will be entered in the error stack if the outputs are switched off.