Multi Station
Vicat Test Apparatus
58
Figure 71: message time out of a motor
In the message, the addition “Tpr” indicates the timeout occurred while running to the target position.
The addition “Cop” indicates the timeout occurred during position correction.
The addition “Ref” will appear if the timeout occurred during the reference search.
These timeouts are handled dynamically as described in case of motor overruns a reference or limit switch
due to an unusual fault condition. All motors will be automatically stopped and the display shows temporar-
ily a corresponding message.
Thereafter a reference search is initiated and the tests will be continued.
A message also appears on the PC status bar as long as the machine status remains unchanged.
After this so called dynamic disturbances, the software attempts to maintain the functionality of the apparatus
and to continue the measurements.
If the same error occurs several times in succession, the machine stops.
So called
“Error Recursion!” will be reported.
In this category also falls the rod magnet error and timeout of UART1.
During the tests the display of the handset unit is updated continuously.
Figure 72: view of a measurement window
The first row of the handset display shows the last measured test point (TP: 12) of a sample (sample 3).
Row two displays the test time (TT: 14798 sec) of the penetrated test point of a sample. The test time is
defined as the time elapsed between zero time (time of initial contact of water and cement) and the time
the penetration depth is measured.
Row three of the handset
display shows the sample’s penetration depth for the measured point (PD: 37.1
mm) and the flow rate in percent (F: 100%).
Row four displays various messages dependent on the status of the apparatus (see enumeration below):
NT: 1:23 sample 4
Next test for the sample four begins in one minute and twenty three seconds.
NT: not available
No farther tests available
Rod lost on XY run
The drop rod comes loose from its holder while running.
Penetration sample 4
Waiting until the penetration time (e.g. 10 seconds) for the penetrated sample expire.
Measurement sample 4
Measuring of the penetration depth is in progress.
Time out Motor Y Tpr
Time out occurred while running to the target position.
The motor Y did not reache target position within expected time.
TP: 12 sample 3
TT: 14708 sec
PD: 37.1 mm F:100%
Timeout Motor Y Tpr
TP: 12 sample 3
TT: 14708 sec
PD: 37.1 mm F:100%
NT: 1:23 sample 4
