Amada MEA-100B Manual de usuario

Z06OM1200070-10

OPERATION MANUAL

Original instructions

AC WELDING POWER SUPPLY

MEA-100B

Thank you for purchasing our AC Welding Power Supply MEA-100B.

・This operation manual explains its method of operation and precautions for use.

・Before using, read this operation manual carefully; after reading, save it in a proper place

where you can easily access.

Contents

1. Special Precautions.................................. 1-1 to 1-5

2. Features..................................................... 2-1

3. Packaging.................................................. 3-1

4. Name and Functions of Each Section ..... 4-1 to 4-4

5. Connection ................................................ 5-1

6. Before the Operation ................................ 6-1 to 6-4

7. Basic Operation ........................................ 7-1 to 7-13

8. Stepper-Up Function................................. 8-1 to 8-4

9. Detail Settings (SET2 Screen) .................. 9-1 to 9-7

10. Interface................................................... 10-1 to 10-8

11. Timing Chart............................................ 11-1 to 11-6

12. Troubleshooting...................................... 12-1 to 12-4

13. Specifications.......................................... 13-1 to 13-8

14. External Communication Function ........ 14-1 to 14-13

15. Outline Drawing ...................................... 15-1

16. Schedule Table........................................ 16-1 to 16-4

EU Declaration of Conformity

MEA-100B

1. Special Precautions

1-1

1. Special Precautions

(1) Safety Precautions

Before using, read "Safety Precautions"

carefully to understand the correct method of

use.

■These precautions are shown for safe use

of our products and for prevention of

damage or injury to operators or others.

Be sure to read each of them, since all of

them are important for safety.

■The meaning of the words and symbols is

as follows.

These symbols denote

"prohibition".

They are warnings

about actions out of the

scope of the warranty of

the product.

These symbols denote

actions which operators

must take.

Each symbol with a

triangle denotes that the

content gives notice of

DANGER, W

ARNING or

CAUTION to the

operator.

Denotes operations and practices that

may imminently result in serious injury

or loss of life if not correctly followed.

Denotes operations and practices that

may result in serious injury or loss of life

if not correctly followed.

Denotes operations and practices that

may result in personal injury or damage

to the Power Supply if not correctly

followed.

Do not touch the inside of the Power Supply unnecessarily

Since very high voltages are applied to the inside of this Power Supply, it is very

dangerous to touch it unnecessarily.

Any person other than service personnel, or authorized representatives’

personnel must not touch the inside.

Never disassemble, repair or modify the Power Supply

These actions can cause electric shock and fire. Consult us or your distribution

for inspection and repair.

Never burn, destroy, cut, crush or chemically decompose the Power Supply

This product incorporates parts containing gallium arsenide (GaAs).

DANGER

！

ARNING

！

CAUTION

！

DANGER

！

MEA-100B

1. Special Precautions

1-2

Do not put your hands between the electrodes

When welding, keep your fingers and hands away from the electrodes.

Do not touch any welded part or electrodes during welding and just after

welding finished

The welded part of a workpiece, electrodes and arm are very hot.

Do not touch them; otherwise you may be burnt.

Ground this Power Supply

If the Power Supply is not grounded, you may get an electric shock when fault

occurs, or electricity leaks.

Apply Single-Phase, 200/220/230/240/380/400/460/480

V AC power supply

Application of a voltage out of the specified range can cause fire and electric

shock.

Connect the specified cables securely

Cables of insufficient current capacities and loose connections can cause fire

and electric shock.

Do not damage the power cable and connecting cables

Do not tread on, twist or tense any cable.

The power cable and connecting

cables may be broken, and that can cause electric shock and fire. If any part

needs to be repaired or replaced, consult us or your distributor.

Stop the operation if any trouble occurs

Continuous operation after occurrence of a trouble such as burning smell,

abnormal sound, abnormal heat, smoke, etc. can cause electric shock and fire.

If such a trouble occurs, immediately consult us or your distributor.

Persons with pacemakers must stay clear of the welding machine

A person who uses a pacemaker must not approach the welding machine or

walk around the welding shop while the welding machine is in operation, without

being permitted by his/her doctor. The welding machine generates a magnetic

field and has effects on the operation of the pacemaker while it is turned on.

Protective gear must be worn

Put on protective gear such as protective gloves, long-

sleeve jacket, leather

apron, etc. Surface flash and expulsion can burn the skin if they touch the skin.

Wear protective glasses

If you look at the surface flash and expulsion directly during welding, your eyes

may be damaged. If any surface flash and expulsion gets in your eyes, you may

lose your eyesight.

WARNING

！

MEA-100B

1. Special Precautions

1-3

Do not splash water on the Power Supply

Water splashed over the electric parts can cause electric shock and short

circuits.

Use proper tools (wire strippers, pressure wire connectors, etc) for

termination of the connecting cables

Do not cut the conductor of wire. A flaw on it can cause fire and electric shock.

Install the Power Supply on firm and level surface

If the Power Supply falls or drops, injury may result.

Do not place a water container on the Power Supply

If water spills, insulation will deteriorate, and this may cause electric leak and

fire.

Keep combustible matter away from the welding machine

Surface flash and expulsion can ignite combustible matter. If it is impossible to

remove all combustible matter, cover them with non-combustible material.

Do not cover the Power Supply with a blanket, cloth, etc.

If such a cover is used, it may be overheated and burn.

Do not use this Power Supply for purposes other than welding

Use of this Power Supply in a manner other than specified can cause electric

shock and fire.

Use ear protectors

Loud noises can damage hearing.

Keep a fire extinguisher nearby

Keep a fire extinguisher in the welding shop in case of fire.

Maintain and inspect the Power Supply periodically

Maintain and inspect the Power Supply periodically, and repair any damage

nearby before starting operation.

CAUTION

！

MEA-100B

1. Special Precautions

1-4

(2) Precautions for Handling

■When transporting or moving the Power Supply, do not lay it down. Also, handle

the Power Supply with care so as not to make an impact such as drop on it.

■Install this Welding Power Supply on a firm, level, horizontal surface. If it is

inclined, malfunction may result.

■Do not install this Welding Power Supply in the following:

・Damp places where humidity is higher than 90%,

・Hot or cold places where temperatures are above 45°C or below 0°C,

・Places near a high noise source,

・Places where chemicals are handled,

・Places where water will be condensed,

・Dusty places, and

・Places at an altitude above 1000 meters.

■Clean the outside of the Welding Power Supply with a soft, dry cloth or one wet

with a little water. If it is very dirty, use diluted neutral detergent or alcohol. Do not

use paint thinner, benzine, etc., since they can discolor or deform the Welding

Power Supply.

■Do not put a screw, a coin, etc., in the Welding Power Supply, since they can

cause a malfunction.

■Operate the Welding Power Supply according to the method described in this

operation manual.

■Operate the switches and buttons carefully by hand. If they are operated roughly

or with the tip of a screwdriver, a pen, etc., this will cause malfunction or damage.

■Operate the switches and buttons one at a time. If two or more of them are

operated at a time, the Power Supply may have trouble or may be broken.

■The Power Supply is not equipped with auxiliary power such as an outlet for

lighting.

■The welding head, the welding transformer, the secondary cable for connecting

the welding head with the welding transformer, and the connecting cable for

connecting the welding transformer with the Power Supply are separately needed

to use the Power Supply.

■The I/O signal line to start the Power Supply is not attached. Press the crimp-on

terminal (terminal block screw, M3) for wiring.

■The cable to supply power to the Power Supply is not attached. Press the

crimp-on terminal (terminal block screw, M6) for wiring. For the cable to use, see

3. (2) Option.

■The cable to connect between the welding transformer and the Power Supply is

not attached. Press the crimp-on terminal (terminal block screw, M6) for wiring.

For the cable to use, see 3. (2) Option.

MEA-100B

1. Special Precautions

1-5

(3) On Disposal

This product incorporates parts containing gallium arsenide (GaAs). At the time of

disposal, separate it from general industrial waste or domestic waste and carry out

the disposal in accordance with applicable laws and regulations.

MEA-100B

2. Features

2-1

2. Features

The MEA-100B is a single-phase AC resistance-welding power supply designed for fine

spot welding. The control method can be selected from secondary constant-current

control and power supply voltage fluctuation compensation control. The MEA-100B

realizes high quality welding, so it is suitable for small size precise welding.

1Four welding current control systems are currently available for the MEA-100B. Select

the control system best suited to the particular workpiece.

[Multi-Cycle Welding + Secondary Constant-Current Control]

Returns welding current feedback to the control at each half-cycle, using the toroidal

coil. The control makes adjustments based on this feedback to maintain a constant

current, compensating for voltage fluctuation and workpiece load variances.

[Multi-Cycle Welding + Power Supply Voltage Fluctuation Compensation

Control]

Monitors and compensates for power supply voltage fluctuation to maintain a constant

current. Compensation begins from the first half-cycle.

[Single-Cycle Welding + Power Supply Voltage Fluctuation Compensation

Control]

Permits the flow of one cycle current only. You can set the first half wave and the

second half wave separately. Compensation begins with the first half wave.

[Half-Cycle Welding + Power Supply Voltage Fluctuation Compensation Control]

Permits the flow of one half-cycle current only. The direction of the current is inverted

with each current flow.

2Current Monitor Function Provided

This function allows you to check the current at every welding. Also, a fault message is

displayed when the current range has been preset and the current is out of range.

3Automatic Maximum Current Setting

The highest optimum current is automatically set through test welding. (This setting is

then retained in memory even when the power supply is turned off. However, it is reset

when another test welding is performed.)

MEA-100B

3. Packaging

3-1

3. Packaging

(1) Accessory

Item Model No. Q’ty

Operation manual AS1200089(OM1200069,OM1200070) 1

(2) Options

Item

Model No.

Description

Item No.

Toroidal coil MB-35E-00

Required for secondary constant-

current control or current

monitoring.

1001283

Connecting

cable

(Power cable/

Output cable)

PK-03294-001

(2 m)

Used to supply power to the MEA-

100B and connect the MEA-100B

to the welding transformer.

Note: If you provide a cable, select

a cable with the following

specification.

Rated voltage............ 600 V min.

Number of cores........ 3

Cross section.............5.5 mm2 min.

Protection conductor..5.5 mm2 min.

Cable diameter.......... 18 mm max.

1001699

PK-03294-002

(5 m) 1001712

PK-03294-003

(10 m) 1001713

For China

PK-03887-001

(2 m)

1001745

PK-03887-002

(5 m)

1001746

PK-03887-003

(10 m) 1001747

Start cable

SK-03273-001

(2 m)

Connects the MEA-100B to the

welding head.

1001698

SK-03273-002 (5 m)

1001710

SK-03273-003

(10 m) 1001711

MEA-100B

4. Name and Functions of Each Section

4-1

4. Name

and

Functions

Each

Section

(1) Front Panel

Display Panel

This LCD panel is used to monitor various MEA-100B functions.

Indicates various settings and weld measurement results.

[READY] Lamp

Lights when the MEA-100B is ready to supply a welding current.

This lamp is synchronized with Terminal 12 ([READY]) of the I/O Terminal

Strip on the rear panel.

This lamp lights when the following conditions are met:

The [WELD] lamp on the panel is on.

The [WELD ON/OFF] signal of the I/O Terminal Strip on the rear panel is

on.

No trouble has occurred.

WELD

RESET

READY START GOOD CAUTION N.G

SET 1 SET 2

SCHEDULE NO. CURR.1 CURR.2 PULSATION SOLENOID

UP2

10 0 10 00 0 00 0 10

KEY LOCK

DWNW2SQ UP1 W1 CO HLD

10 0.9 5

1.00

0 0

①

②

③

④

⑤

⑧

⑨

⑪

⑫

⑪

⑥

⑦

⑩

⑬

⑭

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