Protection
Measurement Types
2 - 14
SKF Multilog O
n-Line System IMx-M
User Manual
Figure 2 - 10.
Actual Translated Angles During Different Types of Speed.
•
Desired measurement angles shaded on the inside of the circle.
•
Actual angles shaded on the outside of the circle:
–
Green color is the part of the measurement falling inside the
configured angles.
–
Red shading is the part which falls outside the configured angles.
•
The speed change depicted is 10% up/down between two measurement
cycles.
Runout Mode
The Runout mode is a measurement mode which is based on a fixed time
(fixed number of samples) and thus independent of machine speed.
This measurement mode will be activated automatically at:
•
Machine standing still
•
Start up phase of machine – until speed is measured higher than 10 rpm
•
W
hen measured speed drops below 10 rpm, for example when:
–
Machine is being shut down or standing still
–
The speed sensor circuit fails
•
If the associated digital channel is NOT configured for the Speed
measurement
The measurement is the average of the samples collected during a fixed time
(0.8 seconds). At the completion of one measurement the next one will
immediately be initiated.