SKF Multilog On-Line System IMx-M User Manual page 36

Protection
Measurement Types
2 - 16
Figure 2 - 10.
Effect of speed changes on measurement angles.

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:

When measured speed is below 10 rpm, for example when:
–
The machine is being shut down or is at standstill
–
The machine is starting and the speed is still below 10 rpm
–
The speed sensor circuit fails

If the associated digital channel is NOT configured for the Speed
measurement
SKF Multilog On-Line System IMx-M
User Manual