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BM111 SERIES 3KW Auto-Focusing Laser Cutting Heads User Manual
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if the corresponding number is inverted, then the board is normal;
For low effective input signal, 0V can be directly connected to the corresponding input port, if
the corresponding number is inverted, then the board is normal.
After ensure the board is normal, access the input signal. If the number is jittering, the input
signal may be unstable. Please make sure that the 24V power of the input signal is in common
ground with the ETC-F100 power supply and then remove the interference and test again.
If the number is not inverted, please check the input signal is valid or not.