4–10
OPERATION
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MAGPOWR DTR-65
MI 850A349 1 D
Tension calibration
Weightless calibration
continued
Display now shows C2.6. Press [
] and enter the web wrap
angle in degrees. This is the angle over which the web touches
the idler roller. Press and hold [
] for two seconds (until the
display starts flashing) to store the parameter. Refer to Figure
8 for the wrap angle 'X'. Range {0, 180.0}.
Display now shows C2.7. Press [
] and enter the angle from
the force direction arrow or center line in degrees. This is the
angle between the resultant force from the web tension and the
force direction arrow of the load cell or centerline of the load
cell. The maximum value is 45 degrees. Press and hold [
] for
two seconds (until the display starts flashing) to store the
parameter. Refer to Figure 8 for the angle from force direction
'Y'. Range {00.0, 45.0}.
Display now shows C2.8. Press [
] to start the weightless
calibration. The display will show a wait screen, and then
display PASS for a successful calibration or an error code to
indicate an issue with the calibration.
From either the passing or error screen press [
] to return to
displaying tension.
See the calibration errors in Table 4 on page 4-11.
If the displayed tension reads negative when force is applied to
the load cell, change parameter P.20 (Tension Polarity), to -1.
The displayed tension will now read positive when force is
applied.
