9: TROUBLESHOOTING
©Tormach® 2020
Specifications subject to change without notice.
Page 68
UM10720: 1300PL Operator's Manual (Version 0820B)
For the most recent version, see tormach.com/support
9.3 VOLTAGE FEEDBACK
9.3.1 No Voltage Reading in PathPilot
Cause: Bad control connection to plasma source
Probability
How-To Steps
Need More?
High
Measure voltage input to THCT board in electrical cabinet:
1. Using a multimeter set to DC volts, probe wires
442
and
495
on the THCT
board with the torch off.
You should read close to 0 VDC.
2. Have a helper press the
TEST TORCH
button in PathPilot and check the
voltage. You should read your plasma source's open circuit voltage divided
by 50 or around 2.5 VDC.
3. If you do not read a voltage, you may need to replace your plasma source
control cable. If you do read a voltage, proceed to checking THCT
communication with the Machine Control Board.
Your plasma source is required to have
an internal voltage divider. By default,
PathPilot is configured for a 50:1
divider.
Summary of Contents for 1300PL
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