J18
U3
U4
18T
RT1
R12
RT2
COMT
COMT
+5
+5
R8
R6
RT4
15
14
13
16
/SSR
/PA
/GAS
11
10
.1UF
50V
C8
9
+24
/SPARE
009994
12
U1
1B
2B
3B
4B
2
3
4
1
5B
6B
7B
6
7
-V
8
5
1C
2C
3C
4C
5C
6C
7C
+V
042188
ULN2003A
TP1
+5
008924
1
2
3
+12
4
5
6
7
J1
108071
8
9
10
11
12
13
14
15
OUTA
OUTB
/CAPON
/START
SPAREIN
HSTEMPOK
GASOK
16
17
18
19
R55
20
21
22
23
TFRI
24
25
26
TP2
IFB
IOCA
/VOK
008924
ELEC SCHEM: PMX600 208-240/480V
013-3-337 REV. B
CONT. PA
J18
OR WHT
6
8
7
2
ORG
5
WHT
4
1
WHT
RED
208/240V (086021)
S1
W5
W7
W1
W4
1É”
208/240
PE
GRN
BLK
W2
WHT
CIRCUIT
BREAKER
+
INPUT
BRIDGE
D18
VDC
-
S1
CIRCUIT
BREAKER
W6
W5
W2
W1
WHT
BLK
W4
GRN
W3
W7
RED
480
3É”
PE
480V (086022)
~
~
~
W8
W14
W13
W12
RED
BLK
R59
R58
R56
R57
(FRONT)
J17
POWER TRANSFORMER
SENSOR IN
TS2
2
1
PS1
TS1
V1
M1
+24
L2
TB1
20 OHM
20 OHM
20 OHM
D2
TRANSFORMER
T2
POWER
7
6
5
4
3
2
Q2
T1
RT3
VDC
D18
ON
ON
TORCH STUCK OPEN
(VISIBLE FOR 15 SEC. AFTER EVENT)
ON
OFF
INVERTER SAFETY INTERLOCK
(VISIBLE FOR 15 SEC. AFTER EVENT)
(BLINKING @ 1 SEC. RATE)
OFF
ON
SELF DIAGNOSTICS FAILURE
OFF
OFF
SYSTEM OKAY
STATUS
LED6
LED7
FAULT CODES
CONTROL BOARD
PCB3
VDC
330
660
+
+
J4
1
C50
C51
CURRENT
013333
013333
TIMING DIAGRAM
109079
109183
IGBT MODULE (Q2)
109179/2
109187/2
BULK CAPS
014252
014251
POWER XFR (T2)
041652
041650
POWER BOARD (PCB2)
109175
109174
INPUT BRIDGE (D18)
003193
003202
CIRCUIT BREAKER (S1)
023519
129530
CORD
480vac, 3É”
208/240vac, 1É”
086022
086021
INPUT VOLTAGE
POWER SUPPLY PART #
J9
+5
POWER BOARD PCB2
VIO
ORG
BLU
J5
LED8
LED7
LED6
START
041654
OVER TEMP
CAP OFF
LOW PRESSURE
LOW VOLTAGE
O.K.
POWER
CAP SWITCH
START
ELECTRODE
NOZZLE
WORK LEAD
014232
OUTPUT CHOKE
109088
OUTPUT BRIDGE
~
~
-
+
BRN
BRN
W18
009849/2
W19
W17
W16
5 TURNS
TRANSFER SENSOR
E
C
IGBT
ARC
PILOT
Q3
LEM
009849
MOV
RC
J8
J3
J13
P1
YEL
YEL
GND
CONTROL
PE
MODULE
IGBT
SOFT START
K1,K2
J2
RED
BLK
RED
BLK
FAN
SOLENOID
GAS
SWITCH
THERMAL
HEATSINK
SWITCH
GAS
J16
J15
TRIP
VOLTAGE
OVER
J14
26 POSITION RIBBON CABLE
-
+
BRIDGE
INPUT
~
~
~
208/240V UNIT ONLY
1
2
3
1
3
2
1
3
4
2
1
2
3
4
18REG
COMT
18T
COMINV
18INV
COMPA
18PA
+12
+24
SUPPLY
POWER
SYSTEM
FLYBACK