Troubleshooting For Pcbs; A001 Power Source; A001 Wire Feeder - Kemppi 3200 Technical & Service Manual

TECHNICAL SERVICE MANUAL FOR KEMPOWELD
APPENDIX 1. TROUBLESHOOTING FOR PCBs

A001 POWER SOURCE

1. + 24 V over the capacitor C9
2.
+ 24 V over the capacitor C7 (
3. + 15 V over the over the diode V2
4.
+ 12 V over the capacitor C10 (MSD
5.
S => pin X2/11 to GND, 0V = start active
TART
6. S => V4 to GND, 0V = start active
TART
7.
TP 4 = 15 V,
8. F voltage over C3 under 5 V = stop, over 10 V = on
AN TIMER

A001 WIRE FEEDER

1. 30 VAC between the thyristros anodes
2. + 40 V over the capacitor C3
3. + 15 V over the diode V17
4.
S
YNCRONIZATION
5. R
AMP WAVE
or wire feeding is on)
6.
S 13; 0V ON, 15 V STOP
TART TP
7. B
REAK CONTROL
8.
B
URN BACK
9. C
ONTACTOR CONTROL
10.
I F
AN CONTROL
II F
AN CONTROL
11. S
ET VALUE FOR WIRE FEEDING SPEED
0 V - 15 V depending on potentiometer setting
ON
FAN CONTROL
TP 19 (rectified sine wave)
over the capacitor C11 (the wave is only active when start
TP24 ; OV active 15 V stop
/ TP33; 15 V stop, under 2V on
POST GAS TIMER
TP 32; under 1 V off, over 5 V on
TP 34; under 1 V off, over 10 V on
, voltage over the capacitor C17 < 2 V fan off
FAN POWER SUPPLY
POWER SUPPLY
pin X2/1 and GND; voltage between
)
)
< 6V fan on