Soyer BMH-22i Operating Instructions Manual page 29

BMH-22i
• Insert a stud into the gun or welding head.
• Check the immersion depth of the stud and/or set it according to the operating instructions of the
welding gun or welding head.
CAUTION
Ensure once again that the operation mode is set to "LIFT" and comply with the
safety instructions.
• Position gun or welding head on workpiece. The LED "Stud on workpiece" lights up.
• Actuate the trigger of the gun or the welding head or give a triggering signal via the CNC
interface. The stud is lifted off the workpiece as long as the triggering signal is there. After a
maximum of 4 seconds, however, the lift test will be interrupted to protect the magnet. There is no
welding current during this period of time.
If necessary, check and correct the height of lift according to the prescribed standard values for the
welding gun or welding head (please refer to the table for welding parameters in chapter 6.1.2).
R
If the lift test is carried out on a workpiece which is connected to the earth connection of the stud
welder, the drop time will be shown in milliseconds on the display. If the workpiece is not connected to
the earth connection, "no ground" appears on the display.

Do not activate the release too often in short intervals, as this would cause the thermo
safety mechanism protecting the lifting magnet to react and the current supply for the
magnet to be interrupted. This condition is displayed as follows:
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