Test 1 — voltage input, Powermax1000, Maintenance – Hypertherm Powermax1000 Service Manual User Manual
Page 52: Service manual 3-19 test 1 – voltage input
MAINTENANCE
1
powermax1000
Service Manual
3-19
Test 1 – voltage input
• Check the line voltage to the top of the power switch (S1).
• Check the input voltage to the input diode bridge.
• The AC voltage between any 2 input wires should equal the line voltage.
• If there is proper voltage to the power switch and low voltage to the input diode, replace the power switch.
• For CE systems, check the voltage at the CE filter. If there is proper voltage to the CE filter and low
voltage to the input diode, replace the CE filter.
• Check the output voltage of the input diode bridge.
• Output VDC = Line Voltage x 1.414 VDC.
Note:
All values can be ±15%.
= Line voltage*
= Line voltage
= Line voltage*
Input diode bridge
Power switch (S1)
* Single phase
Line voltage x 1.414
Ground (PE)
L1 (U)
L2 (V)
L3 (W)
Standard unit
CE unit
L1
Black
Black (U)
L2
White
Blue (V)
L3
Red
Brown (W)
PE
Green
Green/Yellow
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