SUPREMA
278
SUPREMA Sensor Data Sheets
MSA
US
Simulation of normal operation / Alarm / RESET / Open or short-circuit fault indication:
Simulation Effect
Normal operation
External power supply 23 ... 32 V
connected according to circuit diagram
END OF LINE resistor 2K2
connected according to circuit diagram
Connect resistor 10 K 0.5 W
between terminal 1 and 2
Normal operation
Voltage of terminal 1–2 shall be <0.1 V
Alarm
External power supply 23 ... 32 V
connected according to circuit diagram
END OF LINE resistor 2K2
connected according to circuit diagram
Connect resistor 1.0 K 1 % 0.5 W
between terminal 3 and 4
Alarm message
RESET
Connect wire jumper between terminals 3 and 4
Normal operation
After max. 45 s failure message appears.
Open-circuit of line
External power supply 23 ... 32 V
connected according to circuit diagram
END OF LINE resistor 2K2 not connected
Failure message
Line short-circuit
External power supply 23 ... 32 V
connected according to circuit diagram
END OF LINE resistor short-circuited
Failure message
Interruption of the supply voltage
External power supply 23 ... 32 V
not connected
END OF LINE resistor 2K2
connected according to circuit diagram
Failure message after max. 45 s
Leakage current
External power supply 23 ... 32 V
connected according to circuit diagram
END OF LINE resistor 2K2
connected according to circuit diagram
Connect resistor 10 K 0.5 W
between terminal 1 and 2
Connect resistor 18 K between terminals 4 and
5, or connect resistor 330R between terminals
3 and 5.
Failure message
Voltage terminals 1-2 must be 23 ... 32 V
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