SKF Multilog On-Line System IMx-M, User Manual

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Protection
Measurement Types
2 - 20 SKF Multilog On-Line System IMx-M
User Manual
Using Digital Input as Measurement Trigger
One digital channel input is directly connected to a defined pair of analog channels.

Digital channel input 1 to Analog Channel 1 and 2

Digital channel input 2 to Analog Channel 3 and 4

Digital channel input 3 to Analog Channel 5 and 6
 …

Digital channel input 7 to Analog Channel 13 and 14

Digital channel input 8 to Analog Channel 15 and 16
If a digital channel input needs to be used as the trigger for an analog channel that is
not directly connected as stated above, then that digital channel signal must be routed
to the correct digital channel input via an external cable from a digital channel buffered
output to the digital channel input in question. The digital channel buffered outputs (Buf
D) are located on the rear of each CMM + PRM slot as described in
Buffered Outputs .
For an example, to use digital channel 3 input as the trigger for the measurement at
analog channel 14 requires the cabling from the digital channel 3 buffered output to the
digital channel 7 input.
Figure 2 - 14.
Using Digital CH 3 Input as the Measurement Trigger.
Position
Position measures a position of an object (e.g. axial position) by use of displacement
sensor in order to detect thrust bearing failure.