Protection
Measurement Types
2 - 18
SKF Multilog On-Line System IMx-M
User Manual
For both
Average mode
and
Triggered mode
this input is needed to give the reference
point (zero degree angle) at which ongoing measurements are finalized and new ones
initiated. There may be only one pulse per revolution.
In
Triggered mode
the Speed measurement is also needed to derive where in the
revolution to perform the configured measurement, i.e. where the measuring window
starts and ends (see
).
The measurements will be triggered by the falling edge, transition from higher to lower
voltage, in the signal on the digital input.
The following displays a linear time depiction of the trigger signal received on the digital
input and the measuring windows location relative the trigger pulse.
Figure 2 - 12.
Trigger Signal Received on Digital Input.