Gas Error Monitoring; Carbon Steel Pg-O - ESAB Precision Plasmarc Installation, Operation And Maintenance Manual For Residential Installation

SECTION 6
6.12.11

Gas Error Monitoring

Carbon Steel PG-O

Process Gas Pressure Switches Process Gas Pressure Switches Process Gas Pressure Switches Process Gas Pressure Switches
Plasma Gas 1 1 1 1 Pressure Switch
Plasma Gas 2 2 2 2 Pressure Switch
Shield Gas 1 1 1 1 Pressure Switch
Shield Gas 2 2 2 2 Pressure Switch
Vision Shift/Start
Section 6.7.7
for details
, SG-N /O
2 2 2
➊ ➋ ➌ ➍ ➎ ➏ ➐ ➑ ➒ ➓
1
Line vent
2
Flow control vent
13
Idle (Station off)
Station
no
on?
yes
Station on Flush/
Pressure cycle
3
Line Purge
no
Station on?
yes
4
Line fill
no
Station on?
yes
5
ready
no
Station on?
yes
New SDP file
yes
selected?
no
Plasma
yes
test?
no
Plasma
yes
start?
no
Analog
yes
disable
timing?
no
12
Idle (Station On)
no
Station on?
yes
New SDP file
yes
selected?
no
Plasma
yes
test?
no
Plasma
no
start?
yes
X = Monitored For Pressure Present, X = Monitored For Pressure Present, X = Monitored For Pressure Present, X = Monitored For Pressure Present,
O = Monitored For Absence Of Pressure O = Monitored For Absence Of Pressure O = Monitored For Absence Of Pressure O = Monitored For Absence Of Pressure
O O O O
O O O O
O O O O
O O O O
#
Numbers
correspond to columns on solenoid/
proportional valve requirement charts
and gas error monitoring charts
Test (start)
6
Process start.
no
Station on?
Plasma
yes
stop?
yes
SDP files
no
selected?
Error
yes
condition?
no
Plasma test?
no
no
Station on?
Plasma test
yes
Arc
no
established
?
yes
Plasma test
no
(start O
7
Process cut
10
Test (start O
yes
Plasma stop
no
no
Station on?
Error
yes
condition?
no
yes
SDP file
selected?
yes
Station on?
no
no
Plasma test?
Process
8
Postflow
Plasma test
yes
New SDP file
selected?
no
Plasma test
no (start O
Station on?
yes
6-31
TROUBLESHOOTING
X X X X X X X X
X X X X X X X X
X X X X X X X X
X X X X X X X X
9
11
Test (cut)
yes
New
no
Station on?
yes
no
New
yes
SDP file
selected?
no
yes
yes
Plasma test?
cut?
yes
no
yes Plasma
test cut?
)?
2
no
yes
)
2
yes
New
no
yes
yes
cut?
no
yes
)?
2
no
12 13
11
no