Delem
V0802, 3.22
Parameter 22: Calibration 1/0
Range : 0-1
Default : 0
Units : -
Function
Pressure valve calibration.
Description
Program ‘1' if you want to calibrate proportional pressure valve control. Press the key to
select the required setting. The units at the force parameter in manual mode will be in points
from 0 to 255 max. in stead of tons. (0 = 0 mA, 255 = 800 mA)
Calibration procedure:
1. Set parameter to ‘1';
2. Leave the machine parameter menu;
3. Go to the manual mode;
4. Program e.g. 200 points at the tonnage parameter;
5. Select bottoming;
6. Mount pressure gauge on hydraulic block (pump pressure);
7. Programm Dwell time = 5 s;
8. Perform a working stroke with the press. The tools are now pressed together (punch in
die) (Note: Only use punch and die which may work on max. pressure)
9. When tools are pressed together read pressure gauge. In case the pressure is not sufficient
for max. tonnage, reprogram DA-output (max. 255) at tonnage parameter. Repeat until
your max. tonnage is reached. Remember output value. The value must be programmed
at machine parameter ‘output- max’.
10. Program a small value at tonnage parameter, e.g. 30 points. Now find min.value at which
the beam begins to move in the pressing mode. Make note of this minimum value. This
value must be programmed at machine parameter ‘output-min’.
11. Select again the machine parameters menu.
12. Now you must program at machine parameters ‘Force max.’ and ‘Force min.’ the
maximum and minimum tonnage of your press which corresponds with the force units
(0-255) at machineparameters ‘output -max’ and ‘output- min’.
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