ESAB ESP-50 Troubleshooting guide

section 5
maintenance
5.1 warning
Be sure that the wall disconnect
switch or wall circuit breaker
is open before attempting any
inspection or work inside of the
ESP-50.
CAUTION
Water or oil occasionally accumulates in compressed air lines.
Be sure to direct the first blast of
air away from the equipment to
avoid damage to the ESP-50.
If this equipment does not operate properly, stop work immediately and investigate
the cause of the malfunction. Maintenance work must be performed by an experienced person, and electrical work by a trained electrician. Do not permit untrained
persons to inspect, clean, or repair this equipment. Use only recommended replacement parts.
5.2 Make sure power switch on
ESP-50 is in OFF position before
working on the torch.
warning
Always replace torch with the
proper torch manufactured by
ESAB since it alone contains ESAB's patented safety interlock.
Inspection and Cleaning
Frequent inspection and cleaning of the ESP-50 is recommended for safety and proper
operation. Some suggestions for inspecting and cleaning are as follows:
A.
B.
C.
D.
E.
F.
G.
warning
General
H.
Check work cable for secured connection to workpiece.
Check safety earth ground at workpiece and at power source chassis.
Check heat shield on torch. It should be replaced if damaged.
Check the torch electrode and cutting nozzle for wear on a daily basis. Remove
spatter or replace if necessary.
Make sure cable and hoses are not damaged or kinked.
Make sure all plugs, fittings, and ground connections are tight.
With all input power disconnected, and wearing proper eye and face protection,
blow out the inside of the ESP-50 using low-pressure dry compressed air.
Occasionally, bleed all water from the filter beneath the air filter-regulator.
5.3 PT-35 Torch Consumable Parts
To assemble the consumable parts, refer to Figure 4-1.
A. Thread electrode into torch body, hand tighten.
B. Insert insulator into torch as shown.
C. Place nozzle into the shield.
D. Thread assembly to the torch body and hand tighten. Always make sure the
shield is tight before cutting.
ELECTRODE
SHIELD
NOZZLE
TORCH BODY
INSULATOR
IMPORTANT!
MAKE SURE SHIELD IS TIGHT!
Figure 5-1. Assembly of PT-35 Torch Front End Parts
227
section 5
maintenance
5.4
IGBT Handling & Replacement
Since IGBT gates are insulated from any other conducting region, care should
be taken to prevent static build up, which could possibly damage gate oxides.
All IGBT modules are shipped from the factory with conductive foam contacting the gate and emmiter sense pins.
Always ground parts touching gate pins during installation. In general, standard ESD precautlions application to FETs should be followed.
Other handling precautions that should also be observed are as follows:
•
•
•
•
Use grounded work station with grounded floors and grounded wrist
straps when handling devices.
Use a 100Ω resistor in series with the gate when performing curve tracer
tests.
Never install devices into systems with power connected to the system.
Use soldering irons with grounded tips when soldering to gate terminals.
When mounting IGBT modules on a heatsink, certain precautions should be taken
to prevent any damage against a sudden torque. If a sudden torque (“one-sided
tightening”) is applied at only one mounting terminal the ceramic insulation plate
or silicon chip inside the module may get damaged.
The mounting screws are to be fastened in the order shown in Figure 4-3. Also,
care must be taken to achieve maximum contact (i.e. minimum contact thermal
resistance) for the best heat dissipation.
Application of a thermal pad on the contact surface improves it thermal conductivity. See Replacement Parts section for the required pad.
A torque wrench should be used. Tighten mounting screws to 28 in-lbs
(3.2 m-n); wire connecting screws to 19 in-lbs (2.1 m-n). If torque is too heavy, the
device can damage like the above “one-sided tightening”.
Two-Point Mounting Type
Temporary tightening-
Final tightening-
Four-Point Mounting Type
Temporary tightening - 
Final tightening- 






Figure 5-2. Screw Fastening Order
228
section 6TROUBLESHOOTING
6.1Troubleshooting
warning
ELECTRIC SHOCK CAN KILL! Be
sure that all primary power to
the machine has been externally disconnected. Open the
line (wall) disconnect switch or
circuit breaker before attempting inspection or work inside of
the power source.
Check the problem against the symptoms in the following troubleshooting guide.
The remedy may be quite simple. If the cause cannot be quickly located, shut off
the input power, open up the unit, and perform a simple visual inspection of all the
components and wiring. Check for secure terminal connections, loose or burned
wiring or components, bulged or leaking capacitors, or any other sign of damage
or discoloration.
The cause of control malfunctions can be found by referring to the sequence of
operations and electrical schematic diagram (Figure 5-1) and checking the various
components. A volt-ohmmeter will be necessary for some of these checks.
NOTE: Before checking voltages in the circuit, disconnect the power from the high
frequency generator to avoid damaging your voltmeter.
warning
Voltages in plasma cutting
equipment are high enough to
cause serious injury or possibly
death. Be particularly careful
around equipment when the
covers are removed.
6.2Troubleshooting GUIDE
A.Power Light (PL1) does not come on.
1. Visually inspect the machine for any damage.
2.Check if the cooling fan is running. If not, then check the following :
a.Check if the machine power cord is plugged to the input power
receptacle.
b.Measure the input power at the receptacle. If not present, then
check the wall disconnect switch and it’s fuses.
c.Check Fuse (F1). If fuse is ok, then check the input switch (S1) for
proper operation. Replace if defective.
3. If above items check OK , the problem is internal. Send unit to an Authorized Repair Station for repair.
a. If the cooling fan is running, then measure voltage between
pins P2-11 and P2-14 of the control board (should be 115 VAC).
If there is no voltage, then replace transformer T2.
b. If the voltage is present, then the pilot light may be burnt
out.
B. Fault light remains on at power-up.
1. Verify start signal is not present. If so, clear start signal, fault should reset.
2. Switch power to off, verify consumables are installed correctly.
C. No Air Flow
1.Check air inlet supply. Unit requires 250 CFH (118 l/m) at 60 psig 4.1 bars).
2.Check air hose and connections. Tighten if leaking.
229
section 6TROUBLESHOOTING
3. Does air flow when “air test” switch is in test position?
a. If not, check torch consumables, replace if necessary.
b. If above items check OK , the problem is internal. Take unit to an Authorized Repair Station for repair.
D.The Power light is on, but nothing happens when the torch switch is depressed. Fault light does not activate.
1.Check the following:
a. With the machine power on, depress the torch switch. On the control
board the LED 1 should be lit as long as the switch is depressed. If not
then check:
i.Turn power off to the machine. Unplug control board. Put an ohmmeter across P5-1 and P5-2 to take resistance reading. Depress
torch switch. Meter should read a short. If not, then one of the
following is not working properly:
ii.Torch switch or the leads. Unplug the torch switch leads at the
machine. Put a meter across the two plug pins. Should read a short
when the torch switch is depressed. If not, then either broken
switch leads or malfunctioning switch.
b.Check T2 transformer secondary voltages at the plugs P1 and P2. Refer
to system schematic. Replace the transformer if the correct secondary
voltages are not present.
c. If everything above checks out all right, then the PCB1 Control Board
should be replaced.
E. Fault light activates when torch switch is closed.
The Fault circuit is used to monitor conditions necessary for the safe operation of the ESP-50. The fault light will glow amber under the following
conditions and operations will come to a complete stop:
1.High/Low line voltage. The Fault Light will rapidly blink on and off
(5 times per second). This indicates that the input voltage is outside the “+” or
“-” 15% safe operating range rating.
2.Over Temperature. The fault light will be mostly off but will blink on for
1/10th of a second, every second. This generally indicates that the duty
cycle has been exceeded. Allow the power source to cool before returning
to operate.
a.Thermal switch may be open. It will open if the temperature at the IGBT
base reaches 94°C. With the machine power off, check the continuity
between P1-1 and P1-2 of the control board. If the switch is OK, then
the ohmmeter should read a direct short. If not then it should read
open.
b. If the switch is malfunctioning, replace it. Clean the surface of the heat
sink before installing the switch. 230
section 6TROUBLESHOOTING
3. Over Current. The fault light will be on continuously. This indicates that the
input current to the main transformer has exceeded preset limits.
a. To check if the output is shorted, remove the heat shield and nozzle from
the torch and measure the resistance by putting the ohmmeter lead ”+” of
the meter to “+” output terminal and Work, “-” lead of the meter to the “-”
output torch terminal. Reading should be about 2 K Ohms. Reverse the
voltmeter leads, the resistance reading should be less than 1.5 K Ohms.
b. If the resistance reading is different than above, check the torch and output
bridge.
F.Air is On but nothing happens when torch switch is operated.
1.Check the torch. Make sure that the heat shield is very tight.
2.Any one of the following may not be working properly:
a.Check the operation of the Thermal Switch. See D.3.a. above.
b.Check Air Check switch operation. It might be stuck in On position. Pilot
arc will not initiate if this switch is in the ON position.
c.Measure voltage across C1 or C2 capacitor. It should be as follows:
approx. 325 VDC for the 208/230 volt unit.
approx. 280 VDC to 325 VDC for the 400 or 460 volt unit
If not, one of following could be malfunctioning:
1).Check the capacitors C1 and C2 for any damage.
2.)Check input bridge/SCR Module (IBR) This can be checked
without taking it out of the circuit using an volt/ohmeter.
Replace it if found malfunctioning. Follow bridge installation
instructions.
3.)Check Inrush current resistor, R10, located on the input bridge
heat sink. Replace it if malfunctioning.
d. IGBTs (2 on 230 V, and 1 on the 400 V & 460 V units) may be blown. See
IGBT installation procedure. Before replacing IGBTs, make sure to check
the zener diodes and pico fuses on the IGBT driver boards.
G.Pilot Arc is on but Main Arc does not transfer.
1.Make sure work clamp is connected to work material.
2.Check the torch. Replace consumables if necessary.
231
section 6TROUBLESHOOTING
H.Poor Cutting Performance.
1. Check air supply regulator . It should be adjusted to 65 - 75 psig (4.5 - 5.2
bars).
2. The air supplied to the torch should be free of oil and water.
3. Make sure the consumables in the torch are acceptable.
4. Check the output. Use a calibrated current probe capable of measuring 100
amps.
I. Air does not shut off.
1.Check air test, the gas solenoid valve is energized when the switch is in
the “on” position.
a.Check voltage to solenoid coil, if present when torch switch is un-
plugged, replace PCB1.
b. Turn off primary power to the power source. If gas continues to flow,
replace the gas solenoid.
c. Turn on primary power and check the status of the Fault light. If the Fault light is on continuously and gas is on continuously, turn off primary power and inspect the torch for proper assembly of the electrode and nozzle. Press firmly on the electrode and verify that it retracts when pressed, and returns forward when released.
d. Reassemble the electrode and nozzle and turn on primary power. After approximately two seconds the gas should come on briefly then go off. If the Fault light comes on continuously and gas remains off, check for defective torch trigger or shorted torch trigger leads. I. Main arc is difficult to start.
J. Main arc is difficult to start.
1.The most common reason is worn or missing consumables. Check and
replace if necessary.
2. Input air must be clean and dry.
3. Input air pressure must be between 65 - 75 psig (4.5 - 5.2 bars).
4.Torch connections must be tight.
5. Work cable and clamp must be in good condition and must make a good
electrical connection to the material to be cut.
6. If above items check OK , the problem may be internal. a.Missing or weak pilot arc. Check pilot arc resistors and pilot arc wiring.
Send unit to an Authorized Repair Station for repair.
232
section5 6TROUBLESHOOTING
SECTION
TROUBLESHOOTING
5.36.3Reference
REFERENCE VOLTAGE
CHECKS
Voltage Checks
A. A.Control
Control Board
(PCB1)
BoardAssembly
Assembly (PCB1)
1. 1.LED’s
LED’s
LED-1
- -Torch
Torch Switch
LED-1
Switch
LED-3
- - Gas
Solenoid
Valve
LED-3
Gas
Solenoid
Valve
Test
2. 2.Voltage
Voltage
TestPoints
Points
are
no arc.
arc.
Tests
Tests
aremade
madewith
withpower
power on
on -- no
TP-0
TP-0 TP-1
TP-1 TP-2
TP-2 TP-3
TP-3 TP-4
TP-4 TP-9
TP-9 TP-10 - TP-10
Ground
-
Ground
+15
vdc
-
+15
vdc
+12
vdc
-
+12
vdc
-12-12
vdc
-
vdc
+5+5
vdc
-
vdc
IGBT’s
KHz
-
IGBT’sdriving
drivingsignal
signal- -switching
switchingfrequency
frequency =
= 20
20 KHz
- switching
frequency
IGBT’sIGBT’s
driving driving
signal - signal
switching
frequency
= 20 KHz= 20 KHz
50 µsec
40 usec - LPG50
50 usec - LPG80
13 vdc
0
6 usec - LPG50
9 usec - LPG80
-13 vdc
For 208/230
VACVAC
input,
the the
IGBT
offoff
time
is is
3µsec.
For 208/230
input,
IGBT
time
3µsec.
For 400/460
VACVAC
input,
the the
IGBT
offoff
time
is is
3µsec.
For 400/460
input,
IGBT
time
3µsec.
Figure
5.1 6.1
IGBT
Gating
Signal
Figure
IGBT
Gating
Signal
233
33
section 6TROUBLESHOOTING
6.4
Sequence of Operation
ON
START SIGNAL
OFF
OPEN
GAS SOLENOID VALVE
.5 SEC.
CLOSE
10 SEC
POSTFLOW
PREFLOW
FAULT OVERLOAD LIGHT
INVERTER
CUTTING ARC (CURRENT)
NOTES:
1.
2.
When the start signal is turned "on" during postflow period, the postflow and preflow times are canceled.
When the amber fault light comes on, cutting operation should be stopped. The postflow time starts from the moment
the start signal is removed.
NOTE:
Schematics and Wiring Diagrams on 11” x 17”
paper are included
inside the back cover of this manual.
234
section 7
replacement parts
7.0Replacement Parts
7.1
General
Always provide the serial number of the unit on which the parts will be used. The serial number is stamped on
the unit nameplate.
7.2Ordering
To ensure proper operation, it is recommended that only genuine ESAB parts and products be used with this
equipment. The use of non-ESAB parts may void your warranty.
Replacement parts may be ordered from your ESAB Distributor.
Be sure to indicate any special shipping instructions when ordering replacement parts.
Refer to the Communications Guide located on the back page of this manual for a list of customer service phone
numbers.
Note
Bill of material items that have blank part numbers are provided for customer information only.
Hardware items should be available through local sources.
235
section 7
replacement parts
3, 4
5, 4
6
8, 9
7
1, 2
16
15
17
10, 11
14
13
12
Figure 7-1. ESP-50 Power Source, Front View
Item
No.
Qty.
Req.
Part
No.
Description
1
1
137630611
2
1
0558001176
3
1
897W65
4
2
951474
5
1
634518
6
1
951754
7
1
951814
8
2
0558003378
9
1
21711
10
1
23606172
11
1
680560
12
4
182W12
13
1
0558004314
14
1
36330YL
15
1
954008
16
2
13734588
17
1
993426
Circuit
Symbol
KNOB
POT. 10K 3W (NOMEX INSUL. - 676876)
SWITCH TOGGLE SPST 3 POS 15 A 125 V
SWITCH SEAL BLACK
SWITCH TOGGLE DPDT 2 POS 15 A 125 V
LAMP LED YEL 12 V
LAMP NEON WHITE
GAUGE HOUSING
GAUGE 1.50 160 PSI WHITE
STRAIN RELIEF
WORK CABLE 25 FT. (Not Shown)
FOOT RUBBER
CHASSIS ESP-50
DOOR ACCESS YEL (ESAB)
LABEL WARNING HI VOLTAGE
LABEL ESAB
GROMMET 1.5 X 1.75 X .06
236
R1
S3
S2
PL2
PL1
section 7
replacement parts
154, 155, 156, 164
153
151, 152
158, 159
160, 161
162
Figure 7-2. ESP-50 Power Source, Rear View
Item
No.
Qty.
Req.
Part
No.
Description
151
152
153
154
155
156
157
158
159
160
161
162
1
1
2
1
1
1
21710
10Z30
951575
36719YL
2091514
954290
1
1
1
1
1
1
952136
952559
97W63
37573
0558001181
36107
Circuit
Symbol
FILTER REGULATOR
ADAPTOR B/A-WM x 1/4 NPTM
HANDLE
TOP COVER YEL
LABEL WARNING
LABEL WARNING
FUSE HOLDER
FUSE 3 A FAST ACTING
STRAIN RELIEF
INPUT POWER CABLE, 6 FT (208/230 V)
INPUT POWER CABLE, 10 FT (400CE/460 V)
SWITCH POWER 600V 63A
237
F1
S1
section 7
replacement parts
29, 30
25, 26
36
39
27
35
27
25, 26
41
24
35
45
31
43
32, 33, 34
23
21
37
46, 47
38
44
40
Figure 7-3. ESP-50 Power Source, Left Side View (208/230)
238
section 7
Item
No.
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Qty.
Req.
replacement parts
Part
No.
Description
Circuit
Symbol
1
1
1
1
2
2
2
952150
952002
952208
36731
952237
994674
0558001177
BRIDGE 60ADC 100NS 600 V (includes PAD - 951192)
CORE SATURABLE (Not shown - see wiring)
STANDOFF INSULATING NYLON
BUSBAR NEG
CAPACITOR 1800 µf 450VDC
GROMMET STRIP
PCB ASS'Y MOSFET IGBT DRIVER BOARD
1
1
1
1
1
3
2
1
1
1
1
4
1
2
1
1
1
1
2
1
36730
951028
950487
952235
2062282
951321
951205
17750010
32958
952255
950711
17721020
0558038258
951940
952558
0558004447
0558002436
17250010
99512068
0558003105
BUSBAR POS
CAPACITOR 1µf 630VDC (Not shown - see wiring)
TERM BLOCK 2 POS MODULE INPUT BRIDGE/SCR (includes PAD - 952280)
CAPACITOR .22µf 1KV (See wiring)
METAL OXIDE VARISTOR 275 V (See wiring)
IGBT 600 V 100 A (includes PAD - 951190) RESISTOR 50 W 10 OHM (PAD - 951194)
CURRENT TRANSFORMER ASS'Y
CAPACITOR 40 µf 400 VDC
THERMAL SWITCH 194°F
RESISTOR 24 W 20 OHMS (PAD 951193)
PILOT ARC CONTROL PCB
CAPACITOR 1µf 630W VDC
HEATSINK
SOLENOID VALVE 1/4NPT NC 24 VAC
DIODE SINGLE FAST RECOV
RESISTOR WW FIXED 50W 10 OHM
RESISTOR BRACKET
PRESSURE SWITCH
239
D1
L3
TB3
C1, 2
PCB2, 3
C3
TB5
IBR
C19
MOV1, 2, 3
Q1, 2
R7
T4
C4
TS1
R3, 4, 5, 6
PCB4
C15, 16
SOL1
D2
R10
PS1
section 7
replacement parts
56, 57, 58
61
71
67
59
56, 57, 58
60
73
48
55
62
76
53
63
64, 65, 66
51
54
77, 78
68
74
69
75
72
Figure 7-4. ESP-50 Power Source, Left Side View (400CE/460)
240
section 7
replacement parts
Item
Qty.
Part
No.
Req.
No.
Description
51
1
952150
BRIDGE 60 ADC 100NS 600 V (includes PAD - 951192)
52
1
952002
CORE SATURABLE (Not shown - see wiring)
53
1
951800
MODULE DUAL IGBT 150 A, 1200 V
(includes PAD - 951191)
54
1
952208
STANDOFF INSULATING NYLON
55
1
36732
BUSBAR POS
56
2
952237
CAPACITOR 1800µf 450 VDC (400CE/460 V)
2
952562
CAPACITOR 1800µf 500 VDC (575 V)
57
2
994674
GROMMET STRIP
58
2
951028
CAPACITOR 1µf 630 VDC (See wiring)
59
1
0558001178
PCB ASS'Y IGBT DRIVER BOARD
60
1
951964
CAPACITOR 2µf 800 VDC (400CE/460V)
61
1
36822
HOSE ASS'Y B/A x 1/4 NPT RUB
62
1
36733
BUSBAR NEG
63
1
950487
TERM BLOCK 2 POS
64
1
952235
MODULE INPUT BRIDGE/SCR
(includes PAD - 952280)
65
1
2062282
CAPACITOR .22µf 1KV
66
3
950591
METAL OXIDE VARISTOR 510 V (400CE/460 V)
67
2
17750010
RESISTOR 50W 10 OHM (PAD - 951194) 68
1
32958
CURRENT TRANSFORMER ASS'Y
69
1
952255
CAPACITOR 40µf 400 VDC (400CE/460 V)
70
1
058004394
INDUCTOR, PILOT ARC 71
1
950711
THERMAL SWITCH 194°F
72
4
17721020
RESISTOR 25W 20 OHMS (PAD - 951193) 73
1
0558038258
PILOT ARC CONTROL PCB
74
1
952558
HEATSINK
75
1
950249
SOLENOID VALVE 1/4 NPT 165 PSI 24 VAC
76
1
0558002436
DIODE SINGLE FAST RECOV
77
1
17250010
RESISTOR WW FIXED 50W 10 OHM
78
2
99512068
RESISTOR BRACKET
241
Circuit
Symbol
D1
L3
Q1
TB3
C1, 2
C1, 2
C3, 15
PCB2
C16
TB5
IBR
C19
MOV1, 2, 3
R7
T4
C4
L4
TS1
R3, 4, 5, 6
PCB4
SOL1
D2
R10
section 7
replacement parts
86
87
88
81
93
80
94
70
96
Figure 7-5. ESP-50 Power Source, Right Side View (208/230)
242
section 7
Item
No.
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
Qty.
Req.
replacement parts
Part
No.
Description
Circuit
Symbol
1
2
1
35940
17300008
0558004394
CONTROL TRANSFORMER ASS'Y
RESISTOR 300W 8 OHM
INDUCTOR, PILOT ARC
T2
R11,12
L4
1
1
1
1
2
23604891
952232
0558038261
0558004395
951469
LABEL WARNING HI VOLTAGE RED
INDUCTOR PFC
CONTROL BOARD ASS'Y
MAIN TRANSFORMER ASS'Y
CAPACITOR .022µf 250 VAC (See Wiring)
L2
PCB1
T1
C17, 18
2
951515
CAPACITOR .047µf 660 VAC
C21,C23
1
1
952233
36721
INDUCTOR OUTPUT
BUSBAR OUTPUT
1
36717
BRACKET OUTPUT
2
1
672348
952204
CAPACITOR .01µf 1KV (See wiring)
CAPACITOR .01µf 250 VAC (See wiring)
243
L1
C11, 12
C9
section 7
replacement parts
117
116
111
122
82
123, 135
125
121
110
133
Figure 7-6. ESP-50 Power Source, Right Side View (400CE/460)
244
section 7
Item
No.
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
Qty.
Req.
replacement parts
Part
No.
Description
1
1
32914
17300008
1
1
1
2
Circuit
Symbol
CONTROL TRANSFORMER ASS'Y
RESISTOR 300W 8 OHM
T2
R11,12
23604891
0558038261
0558004395
951469
LABEL WARNING HI VOLTAGE RED
CONTROL BOARD ASS'Y
MAIN TRANSFORMER ASS'Y (400CE/460 V)
CAPACITOR .022µf 250 VAC (See wiring)
PCB1
T1
C17, 18
1
1
1
1
951515
0455803881
952233
36721
CAPACITOR .047µf 660 VAC
EMF FILTER BOARD
INDUCTOR OUTPUT
BUSBAR OUTPUT
1
36717
BRACKET OUTPUT KYDEX
1
2
1
1
950487
672348
952204
952213
TERM BLOCK 2 POS 20 A
CAPACITOR .01µf 1KV (See wiring)
CAPACITOR .01µf 250 VAC (See wiring)
REACTOR 3PH LINE 12 A
1
951314
CAPACITOR .022µf 1KV (See wiring)
245
C23
PCB5
L1
TB1
C11, 12
C9
L2
C20
section 7
replacement parts
142
143
140
145
144
141
Figure 7-7. ESP-50 (208/230V) Power Source, Top View with PCB1 and Shelf Removed
Item
No.
Qty.
Req.
140
141
142
143
144
145
1
1
2
1
1
1
1
Part
No.
Description
954673
952026
17240310
951182
2091558
954700
954681
Circuit
Symbol
LABEL CNC INTERFACE
TERM BLOCK 7 POS 25 A
RESISTOR 10 K 25 W
FAN AC AXIAL
LABEL GROUND BLACK
LABEL INPUT (208/230 V)
LABEL INPUT (400CE/460 V)
246
TB4
R2, 15
M1
section 7
replacement parts
247
notes
248
revision history
1. Original release of this manual: 02/2004.
2. 04/2004 Revision - added Pierce Height to cut data charts.
3. 01/2005 Revision - Section 2 - Chgd electrode p/n from: 0558004355 to: 0558005200 in cut
data charts. Added p/n's 0558004973 & 0558004974 for ESP-50 208/230 V PT-35 packages without rack. |Updated torch specifications figure 2-1 & 2-2 drawing. Updated spare parts kits with
new p/n 0558005210, consumable value pack p/n 0558005203, consumable set p/n 0558005201
& consumable set p/n 0558005202. Section 4 - Updated figure 4-2 to show new electrode drawing. Created schematic pack (with new p/n's 0558004710 & 0558004711) for back cover insert.
4. Revision - 05/2005 - added Air Line Filter Regulator p/n 0558005394 note in Replacement Parts section
per CN #053013.
5. Revision - 01/2006 - Removed filter regulator, item 151, p/n 0558005394 note, in replacement parts
section per D. Smith.
6. Revision - 10/2007 - Updated info with 380/400 designations & updated disclaimer.
249
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0558005310
10 / 2007