Rotating machine group - status indicators, Figure 8 rotating machine group status indicators, Trusted – Rockwell Automation T8442 Trusted TMR Speed Monitor User Manual
Page 54: Module t8442
Trusted
TM
Module T8442
Issue 8 Apr 10
PD-T8442
54
4.2. Rotating Machine Group - Status Indicators
Front panel status indication is provided for each rotating machine group.
Figure 8 shows the indicator arrangement for one rotating machine group.
1
2
3
4
5
Group n
Speed Input Channel 1
Speed Input Channel 2
Speed Input Channel 3
Over-speed
Trip Output
Over-acceleration
Trip Output
Figure 8 Rotating Machine Group Status Indicators
Speed input channels report their status as one of eight pre-defined Input states.
Table 19 shows the default relationship between the input operational state and its associated indicator
state.
Input State Description
Indicator State
0
State invalid
Off
1
DC low (gear valley)
Off
2
DC high (gear tooth)
Off
3
Sensor fault (channel discrepancy)
Green - flashing
4
Normal operating speed range
Green
5
Over-Acceleration trip threshold exceeded
Red
6
Over-Speed trip threshold exceeded
Red
7
State faulted or unknown
Red - flashing
Table 19 Default Speed input Channel Status Indication
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