SKF Multilog On-Line System IMx-M
6 - 1
User Manual
6
Troubleshooting Guide
Troubleshooting Guide is intended as an aid when IMx-M system is not functioning
correctly.
It is designed for instrumentation engineers and others with sufficient knowledge of
electrical troubleshooting in electronic systems with a 230 V/110 V power supply and of
the risks that this can mean in case of incorrect procedure.
SKF Condition Monitoring Center Luleå strives to provide information that is as accurate
as possible. However, SKF Condition Monitoring Center Luleå cannot be held
responsible for any injury or damage to persons or material that can occur in the
interpretation of, or due to actions taken on the basis of information in this document.
Warning - The guarantee becomes void if IMx-M racks are damaged through
incorrect intervention in the hardware, or a patently incorrect connection in
contravention of directions given.
Problems and Symptoms
Protection Module and Condition Monitoring Module have matching filter but the
results are different
This is not a problem. The cause of this deviation is because there are differences in
both measurement algorithms and filter characteristics between machinery protection
and condition monitoring.
Refer to
Sensor signal disappears or is abnormally changed for single channels
Possible causes:
Broken sensor cable
Short circuit in sensor cable
Sensor fault
Hardware fault with IMx-M input stage
Grounding loop
Suggested solution:
Carry out sensor/cable test.
A sensor repeatedly generates a false alarm or varies abnormally
Possible causes:
Broken sensor cable/contact
Incorrectly mounted sensor
Hardware fault with IMx-M input stage
