SCHUNK EMH Series, Assembly And Operating Manual

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Troubleshooting
02.00 | EMH | Assembly and Operating Manual | en | 1393220
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7.4 Workpiece is detached from the product
Possible cause Corrective action
Product is not performing the
magnetization process at all or not
correctly. Check the product, lines and connections for
damage.
Check the activation time and correct if necessary.
Before activation, the magnetic surface must lie
completely against the workpiece.
Check the type (ramp) and duration commands and
correct if necessary,
Signal sequence "Product
magnetization" [
}
24]
The holding force is not sufficient. Check the magnetic surface and contact surface of
the workpiece for air gaps and clean if necessary. If
required, change product positioning on the
workpiece.
Select a higher holding force level and repeat the
magnetization process if necessary,
Logic connection
pin allocation [
}
21].
Check that the workpiece complies with the
technical data,
Technical data [
}
14].
Check workpiece suitability, Factors influencing the
holding force [ } 18].
7.5 Demagnetization was not performed correctly.
Possible cause Corrective action
Workpiece has excessive residual
magnetism and does not detach
properly. Perform the demagnetization process once again.
Check the lines and connections for errors and
damage. Ensure that the voltage supply is correct.