Rockwell Automation T8442 Trusted TMR Speed Monitor - Manual (Page 53)

Trusted
TM
Module T8442
Issue 8 Apr 10 PD-T8442 53
4.1. Module Status Indicators
There are six module status indicators on the module front panel; three Healthy, one Active, one
Standby, and one Educated. The Healthy indicators are controlled directly by each module slice. The
Active, Standby, and Educated status from each of the three module slices is 2-oo-3 voted by the FPU,
and the indicators are set accordingly.
The module status indicator states are described in Table 18.
Indicator Indicator State Description
Healthy Off No power applied to the module.
Amber Slice is in the start-up state (momentary after installation or power-
up).
Green Slice is healthy.
Red – flashing Fault present on the associated slice but the slice is still operational
or one 24v feed to the chassis has failed
Red
(momentary) On installation – power applied to the associated slice.
Red The slice is offline. A critical fault has been detected and the slice
disabled.
Active Off Module is not in the Active state.
Green Module is in the Active (or Maintain) state.
Red – flashing Module is in the shutdown state if the Standby LED is off.
Red – flashing Module is in the offline state if the Standby LED is also flashing.
Standby Off Module is not in the Standby state.
Green Module is in the Standby state.
Red – flashing Module is in the offline state. The Active LED will also be flashing
red.
Educated Off Module is not educated.
Green Module is educated.
Green – flashing
Amber - flashing Module is recognised by the Processor but education is incomplete.
Active/standby changeover in progress
Table 18 Module Status Indicators