Operation
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2020-12-04·BA00·III·en·14
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Ex-i power supply
Series 9143
9.3
Commissioning
After completing installation and parameterization, put the device into operation:
• Connect the auxiliary power supply of the device.
10
Operation
10.1 Indications
The corresponding LEDs on the device indicate the operating state of the device
(see also the chapter "Function and device design").
10.2 Troubleshooting
Refer to the following troubleshooting chart during troubleshooting:
If the error cannot be eliminated using the mentioned procedures:
• Contact R. STAHL Schaltgeräte GmbH.
For fast processing, have the following information ready:
• Type and serial number of the device
• Purchase information
• Error description
• Intended use (in particular input / output wiring)
LED
Colour LED "ON"
LED "OFF"
"PWR" LED
green
Device is supplied with auxiliary power Device is not in operation,
voltage supply not available
Error
Cause of error
Troubleshooting
"PWR" LED is off
• Auxiliary power failure
• Defective miniature fuse
• Polarity reversal of the
auxiliary power supply
• 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.
No output voltage,
"PWR" LED lights up
• Input resistance of the
consumer too low
• Current limiting of the
voltage supply activated
• Observe the value for the maximum
nominal current.
• Select consumer corresponding to the
nominal values.