ESP MP-600 Especificaciones descargar pdf (Pagina 54)

SECTION 6 Troubleshooting

ESP 400C and 600C Plasma Power Sources

6-16

CAUTION

6.4.2 Troubleshooting Freewheeling Diode and IGBTs

Freewheeling Diodes and IGBTs

1. Remove top cover.

2. Remove “incoming” bus bars.

3. Remove PCB2 and PCB3 from IGBTs. (PC

boards are held in place by four screws each.)

After PCB2 and/or PCB3 have been

removed, protect against electrostatic

damage. The emitter and the gate of each

affected IGBT must be jumpered together

to prevent electrostatic damage.

Electrostatic Discharge Hazard

Electrostatic discharge may damage these

components.

• Damage is accumulative and may only

appear as shortened component life

and not as a catastrophic failure.

• Wear a protective ground strap when

handling to prevent damage to PCB

components.

• Always place a pc board in a static-free

bag when not installed.

Emitter

Gate

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ESP MP-600 Especificaciones Pagina 54