SCHUNK EGM B-L-30-1x2, Assembly And Operating Manual

Page: 41 / 48

Trouble shooting
01.00 | EGM | Assembly and Operating Manual | en | 389539
41
7 Trouble shooting
NOTE
When consulting with SCHUNK, always specify the serial and ID
numbers of the magnetic gripper.
7.1 Product remains inoperable even after the power supply is
turned on
Possible cause Corrective action
Cable connected incorrectly. Check connection. Check control cabinet and ECG.
Fault circuit interrupter trips. Check the product connection to ground connection.
Product and ECG are not
compatible. Check compatibility, max. permitted number of
magnetic grippers and max. permitted cable
length (20 m) to the magnetic gripper (see catalog
datasheet EGM).
7.2 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, cables and connections for
damage.
Check the activation time and correct if necessary.
Before activation, the magnetic surface must lie
completely against the workpiece.
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 the product positioning on the
workpiece.
Check that the workpiece complies with the
technical data,
Technical data [
}
15].
Check workpiece suitability, Factors influencing the
holding force [
}
26].
If necessary, remove the pole extension or stop.
Test the shift process again for safe holding.
Only ECG-R: Select a higher holding force level and
repeat the magnetization process.
7.3 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.