Hypertherm XPR300 User Manual

Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 261
Initial inspection steps
Some conditions do not give a diagnostic code. For example, there are no diagnostic codes (and
the cutting system does not work) if electric power is removed from the cutting system.
Before you attempt to find or resolve a performance issue that does not result in a diagnostic code,
make sure to first look for obvious problems or damage. Always start with the following inspection
steps:
 Make sure that the cutting system is connected to electric power. Refer to Connect electric
power to the cutting system on page 136.
 Make sure that the line-disconnect switch is set to ON. Refer to Line-disconnect switch
requirements on page 43.
 Examine the PCBs. Refer to page 263.
 Use a licensed electrician to measure the line voltage between the terminals that are inside
of the plasma power supply. Refer to page 265.
Remove the power from the cutting system
WARNING
ELECTRIC SHOCK CAN KILL
Disconnect electrical power before doing troubleshooting or diagnostic work.
All work requiring removal of the plasma power supply outer cover or panels
must be done by a qualified technician.
See the Safety and Compliance Manual (80669C) for more safety
information.
WARNING
ELECTRIC SHOCK CAN KILL
The line-disconnect switch must be in the OFF position before you connect the power
cord to the cutting system. It must REMAIN in the OFF position until all installation steps
are complete.
If the line-disconnect switch is not in the OFF position you can get a serious electric
shock. Electric shock can seriously injure or kill you.
In the United States, use a “lock out/tag out” procedure until installation is complete. In
other countries, follow the appropriate national and local safety procedures.

Hypertherm XPR300 Specifications

General

Brand	Hypertherm
Model	XPR300
Category	Welding System
Language	English