Tormach 1100MX - DC-BUS Power Distribution Reference; Axis Movement Is Noisy

12: TROUBLESHOOTING
©Tormach® 2020
Specifications subject to change without notice.
Page 211 Tormach 1100MX Operator's Manual (Version 0720A)
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Cause: The servo motor is overheating.
Probability How-To Steps
Low
1. Examine the LEDs on the servo motors.
If there's a green 3 blink or a yellow 5 blink, the servo motor is overheating.
2. Power the machine on and off, and the trip should reset.
5. If the problem continues, evaluate supplemental cooling or environmental controls for your application.
DC-BUS Power Distribution Reference
The DC-BUS board contains four fuses which are used to individually fuse power to the axes drivers. A fifth fuse is provided on the supply
boards for the Z-axis brake. Fuses are noted on the circuit board. Note that the control power circuit must be on.
Fuse Number on DC-BUS
Board
Function
Wire Numbers to Monitor (Common Lead (0V)
Listed First)
Voltage When DC-BUS is OK and When
Fuse is Good
F1 X X-axis 210 211 55-75 Vdc
F2 Y Y-axis 220 221 55-75 Vdc
F3 Z Z-axis 230 231 55-75 Vdc
F4 A A-axis 240 241 55-75 Vdc
12.8.3 Axis Movement is Noisy
Before You Begin
WARNING! Electrocution Hazard: When servicing the machine from inside the electrical cabinet, always use caution. Points in the
electrical cabinet have high voltages that can electrocute or shock you. Even after you've powered off the machine, electronic
devices in the electrical cabinet may retain dangerous electrical voltages. Only qualified electrical machinery technicians should
perform maintenance or troubleshooting procedures inside the electrical cabinet while power is still on.
Some procedures in this section require servicing the machine from inside the electrical cabinet. Before you begin, you must identify a
qualified electrical machinery technician to perform the procedures.
Cause: There's a loose wire connection or failed connector.
Probability How-To Steps Need More?
High / Low
Power off the machine (see "Power Off the Machine" (page52)). Then,
tighten all screw connections.
Examine the green power connector
for signs of overheating.
Cause: There's a defective servo motor.
Probability How-To Steps Need More?
Medium
See "One Axis Won't Move (or Only Moves in One Direction), and Other
Axes Move" (page208).
There have been cases of a noisy axis
relating to a defective servo motor.
This may be temperature-dependent.