Operation
22
161936 / 941160310020
2015-09-15·BA00·III·en·08
Zone 1 Ex e field device coupler
Series 9411/11
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10
Operation
10.1 Operation
If there is voltage on the trunk, the "PWR" LED lights up. If a spur is in operation,
this is indicated by the corresponding "S" LED.
10.2 Indications
The corresponding LEDs on the device indicate the operating conditions of the device
and the line fault states (also refer to chapter "Function and Device Design").
10.3 Troubleshooting
Refer to the following troubleshooting plan for 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 Meaning
"PWR" LED
green
Voltage on the trunk
LED "S1" ...
"S8"
red
Operation indication LEDs for spurs 1 ... 8
Error
Cause of error
Troubleshooting
"PWR" LED is off
• No bus power supply at the
trunk
• Coupler defective
• Bus power supply too low
(min. 16 V)
• Check the bus power supply line and
connect correctly if necessary.
• Replace the coupler.
• Check the power supply on the
coupler.
LED "S1" ... "S8" is lit
Short-circuit on the
corresponding spur
40 mA
(
I
(
50 mA
Eliminate the short circuit on the spur
displayed and check the lines and the field
device.
LED "S1" ... "S8" is off
• Wire breakage at
corresponding spur
• Spur not connected
• Corresponding spur
connected to field device,
0 mA
(
I
(
40 mA
• Eliminate the short circuit on the spur
displayed and check the lines and the
field device.
• Connect the field device to the
corresponding spur.
• No action required.
