Owner manual
PNOZ s4.1
Operating Manual PNOZ s4.1 
21890-EN-05
8
}  Reset circuit/feedback loop
Reset circuit/feedback loop Reset circuit Feedback loop
Automatic reset
Manual/monitored reset
}  Semiconductor output
U
B
 24 VDC U
B
 48 - 240 VAC/DC
*Connect together the 0V connections on all 
the external power supplies
Information
If a base unit and a contact expansion module from the PNOZsigma range 
are connected via the connector, no additional wiring is necessary.
Legend
}  S1/S2: E-STOP/safety gate switch
}  S3: Reset button
} 
: Switch operated
} 
: Gate open
} 
: Gate closed










