beautypg.com

Powermax1250 – Hypertherm Powermax1250 Service Manual User Manual

Page 7

background image

TABLE OF CONTENTS

4

iv

powermax1250

Service Manual

Peligro…Advertencia…Precaución ........................................................................................................................1b-2
Los cortes pueden provocar incendios o explosiones ............................................................................................1b-2

Prevención ante el fuego, Prevención ante explosiones ...............................................................................1b-2
Peligro de explosión argón-hidrógeno y metano............................................................................................1b-2
Detonación de hidrógeno con el corte de aluminio ........................................................................................1b-2

El choque eléctrico puede provocar la muerte .......................................................................................................1b-3

Prevención ante el electrochoque..................................................................................................................1b-3

Los cortes pueden producir humos tóxicos ............................................................................................................1b-3
El arco de plasma puede causar lesiones y quemaduras ......................................................................................1b-4

Antorchas de encendido instantáneo.............................................................................................................1b-4

Los rayos del arco pueden producir quemaduras en los ojos y en la piel ..............................................................1b-4

Protección para los ojos, Protección para la piel, Área de corte....................................................................1b-4

Seguridad de toma a tierra .....................................................................................................................................1b-4

Cable de trabajo, Mesa de trabajo, Potencia primaria de entrada.................................................................1b-4

Seguridad de los equipos de gas comprimido ........................................................................................................1b-5
Los cilindros de gas pueden explotar si están dañados .........................................................................................1b-5
El ruido puede deteriorar la audición ......................................................................................................................1b-5
Operación de marcapasos y de audífonos .............................................................................................................1b-5
Un arco plasma puede dañar tubos congelados ....................................................................................................1b-5
Etiqueta de advertencia ..........................................................................................................................................1b-6

Section 2

SPECIFICATIONS

Power supply ............................................................................................................................................................2-2

Dimensions and weight ....................................................................................................................................2-3

T80 torches ...............................................................................................................................................................2-4

Dimensions ......................................................................................................................................................2-5

Symbols and markings .............................................................................................................................................2-6

S Mark .............................................................................................................................................................2-6
IEC symbols .....................................................................................................................................................2-6

Section 3

MAINTENANCE

Controls and indicators .............................................................................................................................................3-3

Indicator LEDs..................................................................................................................................................3-3

Theory of operation...................................................................................................................................................3-4

General ............................................................................................................................................................3-4
Functional description ......................................................................................................................................3-4
Sequence of operation .....................................................................................................................................3-5

Troubleshooting preparation .....................................................................................................................................3-6

Test equipment.................................................................................................................................................3-6
Troubleshooting procedures and sequence .....................................................................................................3-6
External inspection...........................................................................................................................................3-6
Internal inspection ............................................................................................................................................3-7

Initial resistance check..............................................................................................................................................3-7

Check power switch .........................................................................................................................................3-8
Hypertherm IGBT tester ...................................................................................................................................3-9
Indicator LEDS and device tests ......................................................................................................................3-9
IGBT test preparation .....................................................................................................................................3-10
IGBT device test using the Hypertherm tester ...............................................................................................3-10
Troubleshoot the Hypertherm IGBT tester .....................................................................................................3-11
Schematic for building an IGBT tester............................................................................................................3-11
IGBT device test using non-Hypertherm tester ..............................................................................................3-12

Troubleshooting guide ............................................................................................................................................3-14