Wire color codes for North America
Wire color codes for Europe, Asia, and
most locations outside of North America
1 TB1 terminal – –
2 U Black Black
3 V White Blue
4 W Red Brown
5 GND (PE) (earth
ground)
Green/yellow Green/yellow
Measure the line voltage between the terminals inside the
plasma power supply
1. Measure the line voltage between the terminals in the following order:
□
U to V
□
U to W
□
V to W
Do a check of each line to ground.
2. Find if the voltage between any two of the three lines is equal to the supply voltage.
3. If any one line is equal to or 10% greater than the other two lines, examine the incoming electric supply
lines.
If the incoming electric supply lines are good, speak to a licensed electrician or the electric company
that supplies electricity for more information.
4. If the voltage between any two of the three lines is less than the supply voltage:
a. Remove the power from the cutting system.
b. Examine the power cord for damage.
c. Examine the fuses at the line-disconnect switch for continuity.
d. Repair or replace any parts that are defective or have damage, if found.
5. Continue to do these steps until the line voltage between any two of the three lines is equal to the
supply voltage.
Diagnostics and Troubleshooting
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811530 Instruction Manual XPR460
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