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, One Axis Won't Move (or Only Moves in One Direction), and Other Axes Move .

Tools

Inspect the motor lights.
1. Some motor lights are on: One Axis Won't Move (or Only Moves in One Direction), and Other Axes Move.
2. All the motor lights are off: Continue to the next step.
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.
1. Machine control board: Degson style
  1. 424 (J13) (X-axis)
  2. 425 (J14) (Y-axis)
  3. 426 (J15) (Z-axis)
2. Servos: Molex style
Examine the power cables at the DC-BUS and the servos removing then re-connecting them to ensure they are seated.
1. DC-Bus: Spade connector
  1. 210/211 (X-axis)
  2. 220/221 (Y-axis)
  3. 230/231 (Z-axis)
2. Servos: Molex style
Continue to the next troubleshooting topic.

Inspect the stepper driver controller lights.
1. Some controller lights are on: One Axis Won't Move (or Only Moves in One Direction), and Other Axes Move.
2. All the controller lights are off: Continue to the next step.
Power off the machine.
Examine the data cable at the machine control board and the axes drivers.
1. Machine control board: 26 pin IDC (ribbon cable); J6
2. Stepper driver controllers: 10 pin IDC (ribbon cable)
  1. 423.1 (X-axis)
  2. 423.2 (Y-axis)
  3. 423.3 (Z-axis)
Examine the power and control cables at the DC-BUS and the stepper driver controllers removing, inspecting, and re-connecting them to ensure they are seated.
1. DC-Bus: Spade connectors
  1. 210/211 (X-axis)
  2. 220/221 (Y-axis)
  3. 230/231 (Z-axis)
2. Stepper driver controllers: Degson style
  1. 211-214 (X-axis)
  2. 221-224 (Y-axis)
  3. 231-234 (Z-axis)
If there is any discoloration, replace the cable and driver.
Continue to the next troubleshooting topic.

PCNC 1100/770 only: Check connection of J2-5 and J2-6 jumper.

Inspect the stepper driver controller lights.
1. Some controller lights are on: One Axis Won't Move (or Only Moves in One Direction), and Other Axes Move.
2. All the controller lights are off: Continue to the next step.
Power off the machine.
Examine the data cable at the machine control board and the axes drivers.
1. Machine control board: 16 pin IDC (ribbon cable); J6
2. Stepper driver controllers: 10 pin IDC (ribbon cable)
Examine the power and control cables at the DC-BUS and the stepper driver controllers removing, inspecting, and re-connecting them to ensure they are seated.
1. DC-Bus: Spade connectors
  1. 302/303 (X-axis)
  2. 304/305 (Z-axis)
2. Stepper driver controllers: Degson style
  1. 302, 303, 308, 309, and 310 (X-axis)
  2. 304, 305, 311, 312, and 313 (Z-axis)
If there is any discoloration, replace the cable and driver.
Continue to the next troubleshooting topic.

Inspect the stepper driver controller lights.
1. Some controller lights are on: One Axis Won't Move (or Only Moves in One Direction), and Other Axes Move.
2. All the controller lights are off: Continue to the next step.
Power off the machine.
Examine the data cable at the machine control board and the axes drivers.
1. Machine control board: 26 pin IDC (ribbon cable)
  1. J6
2. Stepper driver controllers: 10 pin IDC (ribbon cable)
Examine the power and control cables at the DC-Bus and the stepper driver controllers removing, inspecting, and re-connecting them to ensure they are seated.
1. DC-Bus: Spade connectors
  1. 203/204 (X-axis)
  2. 207/208 (Y-axis)
  3. 209/210 (Z-axis)
2. Stepper driver controllers: Degson style
  1. 203, 204, 213, 214, and 215 (X-axis)
  2. 207, 208, 216, 217, and 218 (Y-axis)
  3. 209, 210, 219, 220, and 221 (Z-axis)
Continue to the next troubleshooting topic.

Inspect the motor lights and the stepper driver controller.
1. Some lights are on: One Axis Won't Move (or Only Moves in One Direction), and Other Axes Move.
2. All the lights are off: Continue to the next step.
Power off the machine.
Examine the data cables at the machine control board and the servos/motor removing then re-connecting them to ensure they are seated.
1. Machine control board: Degson style and 26 pin IDC (ribbon cable)*
  1. (J13) (X-axis)
  2. (J14) (Y-axis)
  3. (J6) (Z-axis)*
2. Servos: Molex style
3. Stepper driver controller: 10 pin IDC (ribbon cable)
Examine the power cables at the DC Power supply and the servos/motor removing then re-connecting them to ensure they are seated.
1. DC Power Supply:
  1. 225/226 (X-, Y-, and Z-axis)
2. Servos: Molex style
3. Stepper: Degson style
  1. 209, 210, 211, 212, 225, and 226 (Z-axis)
Continue to the next troubleshooting topic.

Reason: The DC-BUS or DC power supply is malfunctioning.

Reason: The fuse(s) have blown.

Reason: PathPilot isn’t commanding the move, there is a cable problem, or a controller problem.

Power on the machine and take it out of reset.
Verify that the selected machine configuration in the bottom right corner of PathPilot is correct.
Select the Main tab, then, on the keyboard, press the Esc key.
Jog the axes and, from the PathPilot interface, examine the value displayed in their DRO fields.
1. If the position doesn't change: There's a problem with the controller.
2. If the position changes: There is a communication or hardware issue.
Continue to the next troubleshooting topic.

Reason: The K1/C1 is defective.