Alemite Carbon Shield, Installation, Operation And Maintenance Manual

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ALEMITE CARbON SHIELD SERvICE SHEET | 29
Monitoring functions
The Carbon Shield unit is equipped with sensors
which monitor the different operating parameters
of the system. The signal from the various sensors
is fed into the conditioning circuit of the controller.
The conditioning signal is interpreted and scaled
by the PLC to produce the parameters displayed.
To access the operating status of each parameter
press the “Parameter values” button on the Main
Menu screen of the HMI (Fig.77).
Local Alarms
The PLC performs an ordered series of control
set point checks for the maximum and minimum
values of each function. The controller identifies,
captures, and time stamps the fault if the current
value exceeds the maximum setting (high alarm)
or is less than the minimum setting (low alarm).
To access press the “Alarms” button on the “Main
Menu” screen of the HMI. (Fig. 78)
important note: If the reported alarm (Fig. 79)
is due to intentional change such as adding or
removing lubrication points to the system, the
user can accept the change as new setting through
the adaptive mode function. (See Adaptive Mode
Section D)
Fig. 77
Fig. 78
Fig. 79