PNOZ s3
Operating Manual PNOZ s3
21395-EN-10
6
} Calculation of the max. cable length l
max
in the input circuit:
R
lmax
= max. overall cable resistance (see technical details)
R
l
/ km = cable resistance/km
} Use copper wire that can withstand 60/75 °C.
} Sufficient fuse protection must be provided on all output contacts with capacitive and in-
ductive loads.
} When connecting magnetically operated, reed proximity switches, ensure that the max.
peak inrush current (on the input circuit) does not overload the proximity switch.
Preparing for operation
Operating modes
The operating mode is set via the rotary switch on the unit. You can do this by opening the
cover on the front of the unit.
CAUTION!
Do not adjust the rotary switch during operation, otherwise an error mes-
sage will appear, the safety contacts will open and the unit will not be ready
for operation until the supply voltage has been switched off and then on
again.
Set operating modes
} Switch off supply voltage.
} Select operating mode via the operating mode selector switch "mode".
} If the operating mode selector switch "mode" is in its start position (vertical position), an
error message will appear.
Operating mode
selector switch
"mode"
Automatic/man-
ual start
Monitored start
rising edge
Monitored start
falling edge
Automatic start
with start-up test
Without detec-
tion of shorts
across contacts
With detection of
shorts across
contacts
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