powermax
65/85
Service Manual
5-1
Section 5
TROUBLESHOOTING AND SYSTEM TESTS
In this section:
Controls and indicators .........................................................................................................................................................................5-3
Theory of operation .................................................................................................................................................................................5-4
General ...........................................................................................................................................................................................5-4
200 – 600 V CSA 1- or 3-phase power supply functional description ..........................................................................5-4
380/400 V CE 3-phase power supply functional description ...........................................................................................5-5
Sequence of operation ................................................................................................................................................................5-6
Test equipment .............................................................................................................................................................................5-7
Troubleshooting procedures and sequence ..........................................................................................................................5-7
External inspection .......................................................................................................................................................................5-9
Internal inspection ........................................................................................................................................................................5-9
Check the power switch .............................................................................................................................................................5-9
Hypertherm IGBT tester .......................................................................................................................................................... 5-12
Indicator LEDs and device tests ............................................................................................................................................ 5-12
IGBT test preparation ............................................................................................................................................................... 5-13
IGBT device test using the Hypertherm tester ................................................................................................................... 5-14
Troubleshoot the Hypertherm IGBT tester .......................................................................................................................... 5-14
Schematic for building an IGBT tester ................................................................................................................................. 5-15
IGBT device test using a non-Hypertherm tester .............................................................................................................. 5-16
200 – 600 V CSA power supply overview .................................................................................................................................... 5-17
380/400 V CE power supply overview .......................................................................................................................................... 5-18
200 – 600 V CSA power supply overview (power board removed) ....................................................................................... 5-19
380/400 V CE power supply overview (power board removed) .............................................................................................. 5-20
Summary of Contents for Powermax 65
Page 1: ...Service Manual 807120 Revision 1 Plasma arc cutting systems ...
Page 10: ...vi powermax65 85 Service Manual ...
Page 16: ...Table of Contents xii powermax65 85 Service Manual ...
Page 32: ...Specifications 1 16 powermax65 85 Service Manual ...
Page 182: ...Troubleshooting and System Tests 5 56 powermax65 85 Service Manual ...
Page 216: ...Component Replacement 6 34 powermax65 85 Service Manual ...
Page 244: ...Wiring Diagrams 8 2 powermax65 85 Service Manual ...