Hypertherm Powermax1250 Service Manual - Manual (Page 95)

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