Operation Troubleshooting; Common Problems; Communication Troubleshooting - Siemens SITRANS LR500 Series Operating Instructions Manual

ID Symbols
SC
(red)
Sd
St
11.6

Operation troubleshooting

11.6.1

Common problems

11.6.1.1

Communication troubleshooting

1. Check the following:
– There is power at the instrument.
– The local display shows the relevant data.
– If any fault codes are being displayed see Fault codes and corrective actions (Page 159) for
2. Verify that the wiring connections are correct.
Symptom
You try to set a SITRANS LR500 parameter
via remote communications but the param‐
eter remains unchanged.
If you continue to experience problems, go to our Product page (www.siemens.com/LR500)
and check the FAQs for SITRANS LR500, or contact your Siemens representative.
SITRANS LR500 series with mA/HART
Operating Instructions, 03/2024, A5E51099898-AA
Message Cause/action
Invalid device One or more of parameters are set to invalid values.
configuration
Review configuration values and adjust as necessary.
Configuration
error
Sensor fail-safe Sensor is in fail-safe mode and timer has expired, based on value set in pa‐
timer expired rameter "Fail-safe LOE timer".
Maintenance re‐ Check for changes in process conditions or obstructions in vessel.
quired
Safety valida‐ Device is in safety validation mode.
tion mode
Complete the function test and confirm that the function test has passed in
Configuration the wizard Functional Safety.
warning
a detailed list.
Diagnostics and troubleshooting
11.6 Operation troubleshooting
Corrective action
• Ensure Write Protect (6.1.) is set to the unlock value,
then try setting the parameter via the handheld pro‐
grammer.
165