PNOZ s4
Operating Manual PNOZ s4
21396-EN-21
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Connection
Supply voltage Unit types with
U
B
24 VDC
Unit types with
U
B
48 - 240 VAC/DC
Input circuit Single-channel Dual-channel
Emergency stop
without detection of shorts
across contacts
Emergency stop
with detection of shorts
across contacts
Safety gate
without detection of shorts
across contacts
Safety gate
with detection of shorts
across contacts
Light beam device or safety
switch, detection of shorts
across contacts via ESPE,
operating mode selector
switch in the position
"without detection of shorts
across contacts"
(only for unit types with
U
B
= 24 VDC)
NOTICE
With single-channel wiring the safety level of your machine/plant may be
lower than the safety level of the unit (see Safety characteristic
data [ 35]).