Indications; Troubleshooting - RECHNER SENSORS N-132 Bedienungsanleitung

10.2 Indications

The corresponding LEDs on the device indicate the operating state of the device
(see also the "Function and device design" section).
LED Colour LED "ON"
"PWR" LED Green
"LF1" LED *) Red
"LF2" LED *) Red
"OUT1" LED Yellow Output is connected
"OUT2" LED Yellow Output is connected
*) Activation of line fault detection for channel 1 or 2 using the DIP switch "LF1" or "LF2"

10.3 Troubleshooting

For troubleshooting, refer to the following troubleshooting guide:
Error
"PWR" LED is off
Line fault "LF" LED is lit
permanently
Still no change of the
switching state at the
output in spite of lighting
up of the yellow "OUT"
LED
High switching
frequencies are not
transmitted
If the error cannot be eliminated using the specified procedures:
• Contact RECHNER Industrie-Elektronik GmbH.
For rapid processing, have the following information ready:
• Type and serial number of the device
• Purchase information
• Error description
• Intended use (especially input / output wiring)
201202 / 9170613310
2018-11-20·BA00·III·en·09
Device is supplied with auxiliary power Device is not in operation,
Line fault in signal of channel 1
Line fault in signal of channel 2
Cause of error
• Auxiliary power failure
• Defective device fuse
• Polarity reversal of the
auxiliary power source
• Sensor not connected
correctly.
Swapping the pluggable
terminals
The version of the isolating
switching amplifier with an
electronic output has been
optimised for use with active
I/O cards. If passive inputs
are used, the potential for the
generation of High Level is
missing.
LED "OFF"
power supply not available
No line fault in signal of channel 1
No line fault in signal of channel 2
Output is disabled
Output is disabled
Troubleshooting
• Check the polarity of the auxiliary
power supply.
• Check the wiring of the auxiliary
power supply.
• If the fuse is defective, have the device
repaired.
• Ensure correct wiring of the sensor.
• Connect the de-energised contacts to
additional resistors according to the
chapter "Project Engineering".
Insert the pluggable terminals into the device
connection intended for this purpose.
The High Level is generated by means of an
external circuitry with a resistor for the supply
voltage (e.g. +5 V).
Isolating Switching Amplifier
N-132
Operation
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