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Configuration
3.5
Figure 3.2 - Position Trim – Upper Value
WARNING
It is recommendable that a convenient engineering unit be chosen by means of parameter XD_SCALE of the
Analog Input Block, considering that the range limits of the sensor must be respected, these being 100% and
0%.
It is also recommendable, for every new calibration, to save existing trim data in parameters
CAL_POINT_LO_BACKUP and CAL_POINT_HI_BACKUP, by means of parameter BACKUP_RESTORE, using
option LAST_TRIM_BACKUP.
Via Local Adjustment
In order to enter the local adjustment mode; place the magnetic tool in office “Z” until flag “MD” lights
up in the display. Remove the magnetic tool from “Z” and place it in orifice “S”. Remove and reinsert
the magnetic tool in “S” until the message “LOC ADJ” is displayed. The message will be displayed
during approximately 5 seconds after the user removes the magnetic tool from “S”. Let’s take the
upper value as an example:
Let’s take the upper value as an example:
Set to the input a position of 100.0%
Wait until the current of readout of parameter P_VAL (PRIMARY_VALUE) stabilizes and then
actuates parameter UPPER until it reads 100.0%.
Let’s take the lower value as an example:
Set to the input a position of 0.0%.
Wait until the current of readout of parameter P_VAL (PRIMARY_VALUE) stabilizes and then
actuates parameter LOWER until it reads 0.0%.
Limit Conditions for Calibration
Upper:
-10.0%<= CAL_POINT_HI <= 110.0%
CAL_POINT_HI

CAL_POINT_LO
CAL_MIN_SPAN = 1.0%.
Otherwise, Invalid calibration request.
Lower:
-10.0%<= CAL_POINT_HI <= 110.0%
CAL_POINT_HI

CAL_POINT_LO
CAL_MIN_SPAN = 1.0%.
Otherwise, Invalid calibration request.
If all limit conditions are according to these rules, we will get successful in the performed operation.