Elektron MULTISPOT M80 Manual de usuario
Operating instructions
MULTISPOT M80
Resistance Welder
Item no. 322921
Revision: 3.0 - Translation
Version: 09th, March 2010
Be sure you have read and understood
this operating manual before you carry
out any works on and/or with this
equipment.
Contents page
1.0 Warning notes – explanation of symbols 1
2.0 Description of equipment and overview 3
3.0 Start-up 5
3.1 Assembly of power supply unit and trolley 5
3.2 Compressed air connection 5
3.3 Mains power supply connection 6
3.4 Checking the mains voltage drop during welding 6
3.5 Malfunction indicator 7
4.0 Applications 8
5.0 Technical data 9
6.0 Working with spot-welding tongs 11
6.1 Preparation of welding area 11
6.2 Spot-welding with the tongs 13
6.3 Pulse welding 15
7.0 Operating the welding gun 17
7.1 Push spot welding 19
7.2 Pulling-out dents with washer 21
7.3 Pulling-out dents with high-speed planishing hammer “SAH" 23
7.4 Pushing-in dents 25
7.5 Shrinking sheet metal 25
7.6 Welding-on threaded studs 27
7.7 Welding-on T-pins 29
7.8 Positioning/fixing sheet metal (tacking) 31
8.0 Operating QUICKSPOT 31
9.0 Connection of AIRPULLER 32
10.0 Practical hints 32
11.0 Appendix/self-test and troubleshooting 33
11.1 Self-test 33
11.2 Checking LED displays and the solenoid valves 33
11.3 Mains-supply test and troubleshooting 33
11.4 Manual tool selection 35
11.5 Operating panel malfunction 35
- 1 -
1.0 Warning notes – explanation of symbols
Caution!
Please note the following when using resistance welding units:
The power supply unit and leads of the welding gun and the spot
welding tongs generate a powerful electromagnetic field when in use.
Electromagnetic fields can cause irritations of sense organs, nerve
and muscle cells as well as malfunctions in physical aids (hearing aid,
pacemaker etc.), electronic devices and data storage units.
To prevent these effects, avoid a direct body contact with the welding
cable. A safe distance of 15 cm between cable and body is
recommended.
Caution! Danger!
Ignoring this warning may result in injury!
Observe the notes!
This is the only way to achieve satisfactory welding results.
Work on the power supply unit may ONLY be performed by qualified
electricians.
Wear protective goggles and gloves!
- 2 -
AB Tool selecting keys (manual) see Appendix
CD Gun functions selecting keys
EF Sheet thickness selecting keys
GH Fine adjustment keys time +/–
Tools
1 Tongs, pulse welding
2 Tongs, spot welding
3 Gun
4 QUICKSPOT
5 AIRPULLER
Working with gun
6 Push spot welding
7 Stud welding
8 Beat-out with washers, T-pins, riveting dies
9 High-speed planishing hammer
10 Anneal/shrink
11 Sheet thickness selector
12 Fine adjustment +/–
13 Mains plug symbos with LED “control mains voltage drop” (15, 16, 17)
14 LED malfunction
- 3 -
2.0 Description of equipment and overview
The MULTISPOT M80 resistance welding unit is designed for the
special requirements of motor vehicle body repair.
The power source is controlled by a micro-processor. After selecting the operating
mode and the sheet steel thickness, the current and weld time will be assigned
automatically and – where necessary and advisable – corrected accordingly. An
audible alarm is performed, if the welding current is too low.
Further functions:
– Automatic tool recognition
– Integrated mains monitor recognises undervoltage
– Automatic current rise, welding, current recognition and repressing
– Easy and distinct operation by means of foil keyboard
– Thermal probe controlled air-cooling for gun and tongs
– Central connection for welding current, compressed air, cooling and control
wiring
– Closed box for accessories in power supply unit
– Sturdy trolley with basin for tools and accessories and electrode arms
60 Tongs holder * * in connection with spot
61 Cable holder welding tongs
62 Trolley frame **special accessories (item no.
63 Central connection socket pls. see from accessories list)
64 Balancer **
65 Filter pressure reducer
66 Mains switch
67 Service box
68 Power supply unit
69 Screws 8 x 16
70 Screws 8 x 16
71 Trolley base
72 Roller
73 Guide wheel
74 Receptacle for pulling tool + SAH
75 Receptacle for electrode arms
76 Fastening screws
77 Electronics / operation panel
- 4 -
- 5 -
3.0 Start-up
3.1 Assembly of power supply unit and trolley
– Screw frame (62) to the trolley base with the screws provided (70)
– Put power supply unit (68) on the trolley and fasten with screws
provided (76).
– Screw tongs holder* (60), cable holder (61), balancer** (64)
to the frame.
– (*= in connection with spot welding tongs
**= special accessories)
item number please see from accessories list).
3.2 Compressed air connection
Connection to a compressed air supply is necessary for operation of the
MULTISPOT M80 in conjunction with the spot welding tongs! The connection with
adjustable filter/pressure reducer (65) is located on the back of the power supply
unit (68). The operating pressure is 8 bar!
Insufficient pressure reduces the electrode contact pressure and increases
electrode wear. Excessive pressure can cause poor welding quality and
damage to the tongs.
When installing another air
connection, ensure that the thread of
the plug connector is screwed into the
filter pressure reducer no deeper than
8 mm, as otherwise the air supply will
be interrupted.
Seal the thread with Loctite.
- 6 -
3.3 Mains power supply connection
400 V 50/60 Hz (automatic switch-over)
Connection to a 32 A Cekon socket
Fuse: 32/35 A slow fuse
or
32 A automatic circuit-breaker
230 V (190-240 V) 50/60 Hz (automatic switch-over)
Connection to a 63 A Cekon socket
Fuse: 63 A slow fuse
or
63 A automatic circuit-breaker
3.4 Checking the mains voltage drop during welding
If the full performance of the MULTISPOT M80 is to be obtained, the mains
voltage drop during welding must be kept as small as possible.
The full test is described on Page 35, Chapter 11.3:
Information about the mains drop during welding
Display with 3 LEDs (15, 16, 17) under the mains plug symbol:
Green = mains OK
Green/yellow = mains drop within tolerance range.
Only yellow = considerable mains drop – welding performance
impaired
If necessary, check mains cord, extension cables etc. or use thicker cables.
Red and = large mains drop with large drop in performance.
warning tone: Welding is not possible. Welding current too low.
If necessary, check mains cord, extension cables etc. or use thicker cables.
After 2 seconds, the display automatically reverts to green.
After each welding operation, any mains voltage drop is displayed
for 2 seconds.
- 7 -
3.5 Malfunction indicator
The red LED (14) indicates
thermal overloading of the
spot-welding tongs/spot-
welding gun. While the LED
(14) is glowing, it is not
possible to continue welding
with the tool connected. The
unit is ready for use again
after the LED (14) has
extinguished.
- 8 -
4.0 Applications
Welding capacity:
Compressed-air pressure 8 bar
Electrode arm 120 mm
Programme switch Material Sheet thickness
Function in mm
Pulse welding with pneu-
matic spot welding tongs sheet steel 3.0 + 3.0
Spot welding with sheet steel 2.0 + 2.0
spot welding tongs pneumatic galvanized steel 1.5 + 1.5
Spot welding with
QUICKSPOT sheet steel 1.0 + 1.0
Push spot welding sheet steel 1.25 + 1.25
Setting for the following functions:
e. g. for sheet thickness 0.8 mm – choose range 1.6 mm
= 2 x 0.8 mm
Straightening out
with washer sheet steel 1.2
Airpuller sheet steel 1.0
Straightening out with
high-speed
planishing hammer sheet steel 0.8
Shrinking sheet steel 0.6 – 1.0
Stud welding Steel bolts Æ 4 – 6 mm
on sheet steel 2.0 mm
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