Roland R1000 Series Manual page 30

System description
The preset values (TU=120% resp. TL=80%) should only be changed under the following aspects:
1. the 1-sheet range is permanently restricted, since the measuring values are very stable. Thus
the process security increases. The restriction can be done by decreasing the TU value, by
increasing the TL value, or both.
2. the 1-sheet range is temporarily extended. Thus the process security decreases. Such an action
should only be performed in exceptional cases, the user has to decide about that. Extending the
1-sheet range is commonly considered due to mechanical problems (fluttering sheets). This
measure prevents the machine from stoppages, until the mechanical problem is solved.
"Nom./curr. settling time"
Defines the time which the system requires to reach stable measurement results.
See also chapter 3.7.2.
"Teach-In 1-sheet"
Teach-In calibration must be executed with the material to be processed.
The calibration applies only to the selected program.
"Teach-In 2-sheet"
Because of the linearization of the sensor it is possible to measure with factory calibration in many
applications, as long as thickness, conductivity and material type are known
For a more precise indication, the system can additionally be calibrated to a 2-sheet condition.
The calibration applies only to the selected program.
3.5.3.2 Program parameters for the Monitoring Parts for Hardened / Tempered Properties and
Materials Mix up
This menu structure is valid for the system types g (for details refer to chapter 3.2)
For measuring an eddy current method is used – called "Transmission" measurement.
Compensation curves are being used for linearization.
In order to avoid frequent Teach-In procedures for different materials and thicknesses, the unit
provides for 255 program memories. Every such memory consists of a data set with the relevant
parameters.
"Program number"
Selects the number of the data set (1...255) which is to be applied for measurement.
"Sensor number"
Input of the selected sensor (/sensor sequence) for multi-channel systems (e.g. I20-4-...).
"Frequency"
Adjustment of the measurement frequency for this measurement program.
"Lower limit TL" and "upper limit TU"
Changes the limit values for the lower and upper switching threshold. The values can be entered
in %. On these thresholds depend the status signals.
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
30
Manual
Double Sheet Detector R1000-series I20
with integrated fieldbus interface
B0060191 / Rev. 1.7