Tormach 8L - 7.14.4 Cant Reference All Axes

7: TROUBLESHOOTING
©Tormach® 2021
Specifications subject to change without notice.
Page 68 UM10753: 8L Operator's Manual (Version 0321B)
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Cause: There's a defective axis driver module.
Probability How-To Steps Need More?
Medium
See "One Axis Won't Move (or Only Moves in One Direction), and Other
Axes Move" (page64).
There have been cases of a noisy axis
relating to a defective axis driver. This
may be temperature-dependent.
Cause: There's loose sheet metal.
Probability How-To Steps Need More?
High
Feel for vibrating sheet metal.
Loose sheet metal is mistakenly
diagnosed as a noisy axis motor. On
some systems, certain axis motor
speeds can cause audible vibration.
Cause: The C1 (DC-BUS) capacitor is defective.
Probability How-To Steps
Low
1. Power off the machine (see "Power Off the Machine" (page35)). Then, unplug the green power connectors on all of
the axis drivers (X, Y, Z, and A).
2. With the electrical cabinet door open, power on the machine (see "Power On the Machine" (page33)).
3. Examine the green LED on the DC-BUS board, and then twist out the Emergency Stop button and press the Reset
button. The green LED should come on.
4. Push in the Emergency Stop button.
If the LED goes out in two seconds or less, the capacitor is defective and must be replaced. If the LED takes five
seconds or more to go out, the capacitor is OK.
5. If the results are not conclusive, power off the machine (see "Power Off the Machine" (page35)). Then, unplug the
green power connectors from the axis drivers (if they're not already unplugged).
6. Power on the machine (see "Power On the Machine" (page33)). Then, carefully measure DC voltage on wires 202
(common) and 203 on the DC-BUS board.
If there's a DC voltage of a nominal 65 Vdc (55-75), this indicates the capacitor is OK.
If there's a DC voltage of a nominal 40 Vdc (35-45), this indicates the capacitor is defective.
7.14.4 Can't Reference All Axes
Cause: The machine must be reset.
Probability How-To Steps Need More?
High
From the PathPilot interface, select Reset.
For information, see"Bring the
Machine Out of Reset" (page44) and
"About Reset Mode" (page44).