Specifications

SECTION 6 Troubleshooting
ESP 400C and 600C Plasma Power Sources
6-17
32
1
3
1
2
2
1
3
Snubber Capacitor
(ex.C18)
Freewheeling Diode
(ex. D6)
Snubber Resistor
(ex. R9)
Red Wire
4. Remove bus bars between capacitor banks,
IGBTs and freewheeling diodes.
View of freewheeling diodes and capacitor banks
with bus bars removed. (PCB2 and PCB3 are
shown still in place)
CAUTION
Failure To Route Leads Properly Can Lead To
Failure Of Freewheeling Diodes.
Dressing Of Freewheeling Diode Snubber
Leads.
Red wire of snubber resistor must be routed under
capacitor self lead. Red wire terminal must have a
minimum 1/8" clearance from the bus bar on diode
terminal #2.
Note: Bus bar connecting terminal no. 3 is not
shown for terminal clarity.
The red snubber leads are numbered as viewed
from the rear of the power source:
D1 - Left D4 - Right
D2 - Right D5 - Left
D3 - Left D6 - Right
Cover snubber capacitor self leads with sleeving
P/N 95193486
PCB3
PCB2