4
6-2
powermax1250
Service Manual
t=0
1
0
Start
t
Start
0
1
2ms
Debounced
Arc
0
Pilot
1
2ms
Digitized
XFR signal
Enable
Inverter
0
1
3ms
(
INV_EN
)
Icommand
0
25A
3ms
Setpoint
8
0
16
12ms
Ipilot
(Amps)
Gas
0
1
Postflow
60
Pcritical(15)
at Torch
(psi)
Gas Pressure
Time
x
Consumable
Re-Seat
0
225
Voltage
Arc
(volts)
~
~
10ms
typ
250
1.6
25
I Setpoint
0
(amps)
I Work Lead
10.0 sec
NORMAL MODE
1ms
25
150
210
0.4
16A
valid
3ms
tdelay
0
1
If > 5.0 sec
pilot arc time out
XFR signal
Digitized
in DSP and
Switch
Constant
T
o
rc
h
L
e
a
d
L
e
n
g
th
(fe
e
t)
5
0
5
0
td
e
la
y
(m
s
e
c
)
T
im
e
C
o
n
s
ta
n
t
(m
s
e
c
)
2
5
0
Machine Motion
12ms
1.75A/ms
1.75A/ms
1
.
2
0
0
m
s
D
E
L
A
Y
IS
F
O
R
T
O
R
C
H
L
E
A
D
P
R
E
S
S
U
R
IZ
A
T
IO
N
.
> 200 ms
1
.
2
.
C
U
R
R
E
N
T
(I)
V
A
L
U
E
S
S
H
O
W
N
F
O
R
8
0
A
U
N
IT
.
I
c
u
t
m
a
x
6
0
A
U
N
IT
8
0
A
U
N
IT
8
0
6
0
I
c
u
t
m
in
2
5
2
0
I
p
ilo
t
1
6
/2
5
1
4
/2
0
R
E
Q
U
IR
E
M
E
N
T
S
P
E
R
H
Y
P
E
R
T
H
E
R
M
P
/N
0
4
8
2
6
6
.
3
.
R
o
H
S
/W
E
E
E
C
O
M
P
L
IA
N
T
A
N
D
O
T
H
E
R
R
E
G
U
L
A
T
O
R
Y
D
1
5
3
6
5
6
-1
-0
6
6
-5
-0
6
A
P
P
R
O
V
E
D
D
A
T
E
D
R
A
W
N
D
A
T
E
E
C
N
R
E
V
R
E
V
IS
IO
N
S
D
E
S
C
R
IP
T
IO
N
IT
E
M
N
O
.
D
R
A
W
N
B
Y
P
U
R
P
O
S
E
S
W
IT
H
O
U
T
P
E
R
M
IS
S
IO
N
F
O
R
M
A
N
U
F
A
C
T
U
R
IN
G
O
R
F
A
B
R
IC
A
T
IO
N
F
R
O
M
H
Y
P
E
R
T
H
E
R
M
,
IN
C
.
T
H
IS
D
R
A
W
IN
G
A
N
D
A
L
L
IN
F
O
R
M
A
T
IO
N
P
R
O
P
R
IE
T
A
R
Y
A
N
D
M
A
Y
N
O
T
B
E
U
S
E
D
C
O
N
T
A
IN
E
D
T
H
E
R
E
O
N
IS
C
O
N
S
ID
E
R
E
D
M
A
T
E
R
IA
L
T
O
L
E
R
A
N
C
E
S
A
R
E
:
U
N
L
E
S
S
O
T
H
E
R
W
IS
E
S
P
E
C
IF
IE
D
:
2
P
L
D
E
C
IM
A
L
±
.0
1
F
R
A
C
T
IO
N
S
±
1
/6
4
A
N
G
U
L
A
R
±
2
∞
D
IM
E
N
S
IO
N
S
A
R
E
IN
IN
C
H
E
S
.
3
P
L
D
E
C
IM
A
L
±
.0
0
5
P
A
R
T
M
U
S
T
B
E
F
R
E
E
O
F
B
U
R
R
S
A
N
D
S
H
A
R
P
E
D
G
E
S
.
B
R
E
A
K
S
H
A
R
P
E
D
G
E
S
IF
N
E
C
E
S
S
A
R
Y
W
IT
H
C
H
A
M
F
E
R
O
R
R
A
D
IU
S
.0
1
5
M
A
X
.
0
1
3
3
4
1
0
1
3
3
4
1
B
1
E
L
E
C
S
C
H
E
M
:P
M
X
1
2
5
0
6
0
/8
0
A
T
M
G
N
T
S
1
O
F
2
3
-9
-0
1
B
o
x
-5
0
1
0
H
a
n
o
v
e
r,
N
H
0
3
7
5
5
-5
0
1
0
6
0
3
/6
4
3
-3
4
4
1
D
A
T
E
F
IL
E
N
A
M
E
D
A
T
E
A
P
P
R
O
V
E
D
B
Y
S
C
A
L
E
S
H
E
E
T
D
D
Содержание powermax1250
Страница 9: ...TABLE OF CONTENTS vi powermax1250 Service Manual ...
Страница 47: ...4 MAINTENANCE 3 14 powermax1250 Service Manual Troubleshooting Guide ...
Страница 48: ...4 MAINTENANCE powermax1250 Service Manual 3 15 ...
Страница 49: ...4 MAINTENANCE 3 16 powermax1250 Service Manual ...
Страница 50: ...4 MAINTENANCE powermax1250 Service Manual 3 17 ...
Страница 51: ...4 MAINTENANCE 3 18 powermax1250 Service Manual ...
Страница 52: ...4 MAINTENANCE powermax1250 Service Manual 3 19 ...
Страница 54: ...MAINTENANCE powermax1250 Service Manual 3 21 4 ...
Страница 77: ...MAINTENANCE 3 44 powermax1250 Service Manual ...
Страница 85: ...PARTS POWER SUPPLY 4 8 powermax1250 Service Manual ...
Страница 88: ...PARTS TORCH AND CONSUMABLES 2 powermax1250 Service Manual 5 3 14 11 12 13 15 1 2 3 4 6 8 9 10 7 5 ...
Страница 90: ...PARTS TORCH AND CONSUMABLES 2 powermax1250 Service Manual 5 5 1 2 3 4 6 8 9 15 10 11 12 13 14 7 5 ...
Страница 97: ...WIRING DIAGRAMS 3 6 4 powermax1250 Service Manual ...