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11. FAQ, causes and measures UNIDRIVE 500
The machine switches on automatically after the blowers have been switched on:
• If the air temperature is more than 100°C when the device is switched on, the device switches automatically
to cool down mode. The cool-down process is finished when the air temperature is less than 100 °C for two
minutes.
Deficient welding result quality:
• Check drive speed, welding temperature and air volume. Check the material manufacturer's installation
instructions
• Clean
welding nozzle (8)
with wire brush.
•
Welding nozzle (8)
incorrectly adjusted (see Adjust welding nozzles).
• Incorrect drive direction
• Pressure not sufficient and incorrectly applied
After five minutes at the most, the set welding temperature has still not been reached:
• Inspect supply voltage.
• Reduce air volume.
