Antech AN-350 User manual

OPERATION MANUAL FOR THE SCD SERIES-CAPACITOR
DISCHARGE STUD WELDING MACHINE
▓SERIES :SCD —
▓MODEL#:AN—350
▓SERIAL#:AE0
▓DATE :
ANTECH ELECTRONICS LTD.
030-056-01-001
Please read this manual carefully before
using this welding machine

OPERATION MANUAL FOR SCD( AN-350) SERIES CAPACITOR DISCHARGE STUD WELDING MACHINES
10/2000 ANTECH ELECT.LTD.
1
Thank you for choosing Antech welding equipments.
Please read this manual carefully before the installation and operation of
the SCD series stud welding machine. Do not hesitate to contact us if you have
queries.
The SCD series of stud welding machines is another high quality product
developed by Antech Electronics Ltd. It is built with a dedicated AN-350
controller that provides stable outputs regardless of any input voltage and
temperature changes. The internal memory supports three (3, or up) set of program
parameters. The SCD series stud welding machines are equipped with either quality
German or Japanese stud welding guns to provide superb performance and
reliability. It is thus a perfect alternative to the expensive import stud
welding machines.
Please advise if any errors are found concerning the contents and printing
of this manual.
CAUTION
DANGER, HIGH VOLTAGE

OPERATION MANUAL FOR SCD( AN-350) SERIES CAPACITOR DISCHARGE STUD WELDING MACHINES
10/2000 ANTECH ELECT.LTD.
2
CAUTIONS
1. Ensure that the welding machine is properly grounded before operations, to
avoid electric shock.
2. Be aware of high voltage
The power thyristors, transformers, capacitors and some components might
carry high voltages. It is advised that the supply to the welding machine
be disconnected before opening the chassis for service and maintenance.
3. Ensure that the start switch or welding gun trigger is in the off position
before turning on the power to the welding machine.
4. Do not operate the welding machine if the chassis is open.
5. Any service, repairing and maintenance should only be performed by qualified
technicians. ( Be cautious when dealing with high voltage components, such
as the thyristers, transformers and capacitors )
6. The working environment should be free of corrosive gas, vapor and excessive
dust. Keep the control unit from contacts of water and grease.
7. Do not place heavy loads on top of the control unit.
8. Keep working condition clean, free of dust and dry. Check cable connections
and screw joints in a regular basis.
9. No smoking and fire hazardous material is near by the welding machine.
10. Sparks might be produced in the welding process. It is strongly recommended
that protection materials, especially safety glasses, be worn to prevent
bodily injuries.

OPERATION MANUAL FOR SCD( AN-350) SERIES CAPACITOR DISCHARGE STUD WELDING MACHINES
10/2000 ANTECH ELECT.LTD.
3
INDEX
1: Introduction ………………………………………………………………………… 4
2: Specifications ……………………………………………………………………… 4
3: Installations ………………………………………………………………………… 4
4: The Control Unit …………………………………………………………………… 7
5: The Stud Welding Gun ………………………………………………………………… 1 4
6: Stud Welding Procedure ………………………………………………………………23
7: Welding Tips …………………………………………………………………………… 24
8: Maintenance …………………………………………………………………………… 25
9: Diagnostics …………………………………………………………………………… 26
10: Parameter List ……………………………………………………………………… 27
Diagram 1: Connection diagram SCD capacitor stud welding machine
Diagram 2: SCD series stud welding

OPERATION MANUAL FOR SCD( AN-350) SERIES CAPACITOR DISCHARGE STUD WELDING MACHINES
10/2000 ANTECH ELECT.LTD.
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1. INTRODUCTION:
The SCD series Stud Welding Machines are designed for tip ignition stud
welding of stud/nails. The stud weld is completed in a very short period of time.
This helps to prevent thin workpieces from damage and distortion due to the heat
generated during the welding process. As a result, the SCD series stud welding
is suitable for a wide range of applications.
It is easy to perform maintenance and repairing as all the major parts are
housed in a single chassis, except the welding gun and cables. Based on a lot
of expertise, experience and continuous improvements, the SCD series of stud
welding machines have been developed to meet the requirements of the welding
industry. It is suitable for the stud welding of stainless steel, mild steel,
aluminum, copper … etc.
It is our endeavor to maintain a high quality control policy so that our
products will satisfy all our users in the welding industry.
2.SPECIFICATIONS:
Model: SCD-60 SCD-80 SCD-100
Input voltage 220V± 15%, single phase, 50/60Hz
Weld stud range Φ2~Φ6
M3~M6( ※Al. M5)
Φ2~Φ8
M3~M8( ※Al. M6)
Φ2~Φ10
M3~M10( ※Al. M8)
Capacitance( µF) 66,000 99,000 132,000
Output voltage,
(capacitor voltage)
30~175V
Ambient temperature -10℃~55℃
Relative humidity 20%~ 90%
Dimensions 455 (D) X 350 (W) X 450 (H)
Stud weld gun type ESP-9 / ESP-6 / H100/ TSK310
※For aluminum (Al.), recommend to use CD-Stud gun type ESP-9
3. INSTALLATIONS:
3.1 Setup:
Follow the following steps for proper setup:

OPERATION MANUAL FOR SCD( AN-350) SERIES CAPACITOR DISCHARGE STUD WELDING MACHINES
10/2000 ANTECH ELECT.LTD.
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3.1.1 Place the welding machine on a solid and stable platform.
3.1.2 If necessary, u se a250VD.C.isolation meter to check the isolation between
the input power lines and the chassis. The resistance should be greater
than 2 MO .( due to t he internal electronics, the control circuit wiring
should be disconnected for proper measurement of isolation) .
3.1.3 Connect the input power plug to a suitable and safe power socket. Proper
grounding is mamdatory.
3.1.4 For pneumatic welding gun systems:
(1)Connect the pedal/push button switch to the connector on the front of
the control unit;
(2)Clean the air hoses and assembly, and then connect the air outlet from
the air-compressor to the air inlet on the right hand side of the
welding machine;
3.1.5 Output Power Selection:(to be set according to customer requirements)
There are three selections of output power ranges, as shown in Figure 1.
The selections can be made with the position of the copper bars at the
back of the control unit:
???出小能量接法
短路?片 短路?片
???出中等能量接法
短路?片 短路?片
???出最大能量接法
短路?片
?一 外部接?柱?接示意?
Short circuit copper bar
Small power output
connection method
Short circuit copper bar
Short circuit copper bar
Short circuit copper bar
Short circuit copper bar
Middle power output
connection method
Largest power output
connection method
Figure 1: Output Power Selection Method

OPERATION MANUAL FOR SCD( AN-350) SERIES CAPACITOR DISCHARGE STUD WELDING MACHINES
10/2000 ANTECH ELECT.LTD.
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接地??
焊???
接地??
FUSE
焊???
ANTECH ELECT.LTD
SCD-80
電源線
S/P
POWER
S/P13
2VALVE
WELDREADY RUN VALVE
C
工件
焊槍
?二焊机外部?接?
3.2 Exterior Connections:(See Figure 2)
3.2.1 Connect the stud welding gun cable to the corresponding( -) fast-on socket
at the left of the front panel of the welding machine. Turn right and ensure
that they are tightened properly;
3.2.2 Connect the control wires of the welding gun to the 4-pin socket on the
front of the control panel, tighten the connection with the mounting ring
of the plug;
3.2.3 Connect the earth cables to the earth( +) fast-on connector on the front
panel. Turn clockwise to tighten the connection properly;
3.2.4 Connect the earth cables to the work piece by clamps respectively.
? NOTE: 1.As welding current may go up to8000A, it is essential to maintain tight
connections for all welding gun and earth cables;
2.To achieve satisfactory welding results, use both earth cables for the
connection of the work piece. They should placed in a diagonal
positions, as shown in Figure 3;
Welding torch
W
ork piece
W
elding
gun
cable
Welding gun
G
round cable
G
round cable
W
elding gun cable
Power
cable
Figure 2: Outer Cable Connection of Welding Machine

OPERATION MANUAL FOR SCD( AN-350) SERIES CAPACITOR DISCHARGE STUD WELDING MACHINES
10/2000 ANTECH ELECT.LTD.
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◎Correct positions ◎Incorrect positions
Figure 3: Connection of earth cables to the work piece
3. Make sure that the side, rear and bottom panels of the chassis are
free of obstacles that might block the airflow for cooling.
Check again to confirm correct wirings before switching on the power.
4.THE CONTROL UNIT:
4.1 Features:
The AN350 Capacitor Discharge Welding Controller is used as the control unit.
It is microcontroller based providing 3 series of program welding parameters,
Overheat indication, Discharge thyrister diagnostics( Open-circuited /
Short-circuited ) indication 、Capacitor over-voltage indication and
protection, Under-voltage indication and Parameter lock (optional)
features.
4.2 Major components:
The control unit is mainly composed of the following parts: the main
transformer, capacitors, thyristers, input filter, charging resistor and
an AN350 controller.
4.3 Basic features of the control unit:
4.3.1 Controller: AN-350
4.3.2 Control features:
Timing Control : Pre-squeeze Time: 1-99 cycles
Hold Time: : 0-99 cycles
Voltage Control: Capacitor Voltage : 30V~175V
Weld Counter: Number of welding: 0~9999
Preset Counter: Number of welding to stop: 0~9999
接地
接地
接地
接地
接地
Ground
Ground
Ground
Ground
Ground

OPERATION MANUAL FOR SCD( AN-350) SERIES CAPACITOR DISCHARGE STUD WELDING MACHINES
10/2000 ANTECH ELECT.LTD.
8
S/P
POWER
S/P
ANTECH ELECT.LTD
SCD-80
FUSE
23
1
C
WELDREADY RUN VALVE
VALVE
保?
?源??
?源?? 程序???? AN-350控制盒
快速接?
焊?插座
接?插（有气缸??
种焊?之焊机用）
Diagnostics : Discharge thyrister O/C & S/C alarm
Capacitor over and under-voltage alarm
Transformer and thyrister over-heat alarm
System Parameters: (S0), used for the fine tuning and running conditions
of the welding system.
□NOTE: For 50 Hz line frequency, 1 cycle = 20 msec.
4.3.3 Operating Specifications:
Input Voltage: Single phase 220V± 15%,
50/60Hz( automatic frequency detection)
Solenoid Voltage : DC24V± 10%
Ambient Temperature : -10℃~55℃
Relative Humidity : below 90%
Parameter Display: 4 X 7-segment LED display
Indicators : Spot LED
4.4 Descriptions of the Control Unit:(See Figure 4)
Fuse
Power switch
AN-350
Control box
Power cable inlet
Welding torch
socket
Quick socket
Logical
selection
Figure 4: Descriptions of the Control Unit
Connecting socket
(for stud welding
machine with air
tank only)

OPERATION MANUAL FOR SCD( AN-350) SERIES CAPACITOR DISCHARGE STUD WELDING MACHINES
10/2000 ANTECH ELECT.LTD.
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4.4.1 Power Switch:
Used to connect or disconnect power to the welding machine;
4.4.2 Program Series Selector:
Used to select the series of programmed parameters( S1, S2, S3);
4.4.3 AN-350 Controller:
AN-350 Controller is the main processor of the welding machine. It is
used for the control of the welding sequence, status indications and
parameter setup and storage.
4.4.4 Fuse( 5A):
For the over-current protection of the welding gun.
4.4.5 4-pins Socket:
Used for the connection of the control wires of the welding gun.
4.4.6 Input Power port:
4.4.7 Fast-on Socket( -):
Used for the connection of the Welding gun cable.
4.4.8 Fast-on Socket( +):
Used for the connection of the earth cables.
4.5 Descriptions of the AN-350 Operator Panel and Indictors: (See Diagram 5)
1. Power Indicator( POWER)
2. Ready Indicator( READY)
3. Weld Ready Indicator( RUN)
4. Solenoid Indicator( VALVE)
5. Welding Indicator( WELD)
6. Program/Parameter Display
7. Program Button( S/P)
8. Clear Button( C)
9. Increment Button( +)
10. Decrement Button( -)
Diagram 5: AN-350 Operator Panel
107 8 9
ANTECH ELECT.SYSTEM CANADA
VALVE
1 432
S/P
S/P
S/P
6
C
VALUE
C
POWER RUNREADY
5
WELD