Background
Your machine axes require power and control signals to work. If either of those are disrupted you can lose any or all of your axes motion. If only one motor is not working go to, https://tormach.atlassian.net/wiki/spaces/Tech770MX/pages/3632398784/INTERNAL+One + Axis + Won+'t + Move +(or + Only + Moves + in + One + Direction+), and + Other + Axes + Move .
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Tools
Digital multimeter
Metric Allen Keys
Small Flat Blade Screw Driver
Reseat the connectors on the machine control board and motors
Reason: Control signals aren't reaching the electronic driver modules/servo motors.
Inspect the motor lights.
Power off the machine.
Examine the data cables at the machine control board and the servos removing then re-connecting them to ensure they are seated.
Machine control board: Degson style
424 (J13) (X-axis)
425 (J14) (Y-axis)
426 (J15) (Z-axis)
Servos: Molex style
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Inspect the DC-BUS board or DC power supply
Reason: The DC-BUS or DC power supply is malfunctioning.
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Inspect the XMF1 transformer
Reason: The fuse(s) have blown.
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Check the K1/C1 contactor
Reason: The K1/C1 is defective.
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