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The Variable Frequency Drive (VFD) isn’t Getting Power
Examine the
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Spindle Door and its
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Switch
Reason: The door is open or the switch is malfunctioning.
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Reset the thermal switch (TS1) as follows:
Power off the machine.
Allow the brake resistor to cool.
Press the reset button (between the thermal switch’s two terminals) to reset the thermal switch.
Verify that the
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Spindle Run/
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Start is
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Working
Reason: The spindle start signal from the control board isn’t working.
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