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
909
Supply voltage for power circuits
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 power circuits (B1/B2) complies with the spe-
cified tolerance of +/-10 %. 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.
} The power supply must be able to bridge a power outage of 20 ms.
Supply voltage for power cir-
cuits
Please note: The supply
voltage must be protected
with a fuse.
Fuse F1:
Circuit breaker 24 V, 48
VDC, 10 A, characteristic B/
C
L3
L1
L2
PE
B1
B2
L+
L-
F1
Power circuit
Power circuit
Dual-pole outputs
O1+
O1-
O2+
O2-