Commissioning
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230230 / 947160310010
2019-03-08·BA00·III·en·01
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Digital Input Output Module NAMUR
for Ex n Zone 2
Series 9471/35
9
Commissioning
Before commissioning, ensure the following:
• Installation of the device according to regulations.
• Correct connection of the cables.
• No damage at the device and connection cables.
• Tight seat of the screws at the terminals.
Correct tightening torque: 0.5 to 0.6 Nm.
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
For troubleshooting, refer to the following troubleshooting guide:
LED
Colour Meaning
"RUN" LED
green
Operation indication
"ERR" LED
red
Module error indication
"M/S" LED
blue
Maintenance required or ambient temperature too high
16 x LEDs
red
Short circuit or line disconnection in field circuit
16 x LEDs
yellow Indication of signal state for field circuits
Error
Cause of error
Troubleshooting
"RUN" LED is flashing
The module is in proper condition
but is not ready for cyclic data
exchange yet (there is no
parameter set available yet).
The outputs are inactive.
• Activate the cyclic data transfer with
the master
• Check master, bus connection and
CPM
"RUN" LED is off
• No supply voltage present
at the I/O module
• I/O module defective
• Check the system supply
• Check the CPM or CPU & PM
• Check the BusRail
• Snap the I/O module correctly into
place on the BusRail
• Replace the I/O module