Thermal Dynamics CUTMASTER SL100SV, Руководство по эксплуатации

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SERVICE 5-34 Manual 0-4640
5
4. Gate Drive & DC Sensing
a. After checking all previous steps in Subsection 4.09-G, jumper TP1 to TP3 on the Logic PCB.
b. Disconnect wires from the Main PC Board as shown in the chart. When the unit is turned on, the DC light should remain ON.
208/230V Units E3, E13, E15
400, 460V Units E13, E15, E35
Main PC Board Wire Disconnection Points
c. Activate the torch (press torch switch on the handle, send START signal from CNC Control or press the torch switch on
the Remote Pendant). After two seconds INV ON indicator on the Logic PCB should come on and remain on.
• If INV ON indicator does not remain on, replace Logic PCB.
• If INV ON indicator does remain on, then check for approximately 6 vdc between J1-29 and J1-28 and between J1-27
and J1-26.
• If no voltage, replace Logic PC Board.
• If voltage is correct, measure for approximately 6 vdc between E32 to TP-14 on the IGBT PCB and E31 to TP13 on
IGBT PC Board.
• If 0 vdc, replace Main PC Board.
• If correct, reconnect wires to Main PC Board.
d. With jumper between TP1 to TP3 still in place, activate the torch and measure for 230 vdc to 300 vdc at Main PCB E18 to
E19.
• If 0 vdc, replace IGBT PC Board.
• If correct, replace Logic PC Board.