Amada IS-200A User manual

AA09OM1185335-03
OPERATION MANUAL
DC INVERTER WELDING POWER SUPPLY
IS-200A

IS-200A
Contents
1
Thank you for purchasing our DC Inverter Welding Power Supply IS-200A.
This operation manual describes its method of operation and precautions for use.
Read this operation manual carefully prior to use. Store appropriately for ready reference.
Contents
1. Special Notes
(1) Safety Precautions·································································1-1
(2) Precautions for Handling ·························································1-4
(3) On Disposal ·········································································1-5
(4) Warning Label for Safety ·························································1-5
2. Features ··················································································2-1
3. Name and Functions of Each Section
(1) Front Panel ··········································································3-1
(2) Rear Panel···········································································3-3
(3) MA-627A (Sold Separately) ·····················································3-4
4. How to Operate Screens
(1) MENU Screen·······································································4-1
(2) POWER SUPPLY STATE Screen··············································4-1
(3) SCHEDULE Screen ·······························································4-3
(4) MONITOR Screen ·································································4-10
(5) MONITOR SET Screen···························································4-12
(6) COPY SETUP DATA Screen ····················································4-13
(7) MODE SELECT Screen ··························································4-15
(8) MONITOR MODE Screen ·······················································4-24
(9) STEPPER COUNT Screen ······················································4-26
(10) I/O CHECK Screen ······························································4-27
(11) RESET TO DEFAULT Screen ·················································4-28
(12) PROGRAM PROTECT MODE Screen ·····································4-28
(13) OVER WRITE / DOWN LOAD Screen······································4-29
5. Connection Procedures
(1) Basic Configurations ······························································5-1
(2) Connecting···········································································5-2
6. Interface
(1) Connection Diagram for External Input/Output Signals ··················6-1
(2) Description of External I/O Signals ············································6-3
(3) Connection of Input Signals ·····················································6-6
7. Basic Operation········································································7-1
8. Timing Chart
(1) Basic Sequence ····································································8-1
(2) Detailed Description of Welding Current and Sequence
in the Event of an Error ···························································8-2

IS-200A
Contents
2
9. Specifications
(1) Specifications ·······································································9-1
(2) Options (Sold Separately) ·······················································9-3
(3) Duty Cycle Graph ··································································9-4
(4) Board List for Maintenance ······················································9-4
(5) Major Components List ···························································9-5
(6) Schematic············································································9-5
(7) Schedule Data Table ······························································9-6
10. External Communication Function
(1) Introduction ··········································································10-1
(2) Data Transmission ·································································10-1
(3) Configuration ········································································10-2
(4) Protocol···············································································10-3
(5) Data Code Table····································································10-6
11. Outline Drawing ······································································11-1
12. Troubleshooting
(1) Fault Code List······································································12-1
(2) When a Welding Does not Start Even if the Start Signal is Input ······12-4

IS-200A
1. Special Notes
1-1
Denotes operations and practices that
may result in personal injury or
damage to the equipment if not
correctl
y
followed.
1. Special Notes
(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.
Do not touch the inside of the Power Supply except as instructed.
The interior of this Power Supply carries high voltage. It is very dangerous to
touch any parts except as instructed. Do not touch.
When inspecting the interior of the Power Supply, be sure to turn off the power
source of the Power Supply and wait at least 5 minutes.
Never disassemble, attempt to repair, or modify the Power Supply.
These actions can cause electric shock and fire. Perform only the
maintenance described in the operation manual.
Never burn, destroy, cut, crush or chemically decompose the Power
Supply.
This product incorporates parts containing gallium arsenide (GaAs).
DANGER
!
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.
!
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
DANGER, WARNING
or CAUTION to the
operator.
DANGER
!
WARNING
!
CAUTION
!

IS-200A
1. Special Notes
1-2
Do not insert your fingers or hands between the electrodes.
When welding, keep your fingers and hands away from the electrodes.
Do not touch any welded part or electrode during welding or just after
completion of welding.
The welded parts of a workpiece, electrodes, and the arm are very hot.
Do not touch them; burns may result.
Ground the equipment.
If the Power Supply is not grounded, you may receive an electric shock in
the event of malfunction or current leak.
!
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 apply force to any cable. Doing so may cause the
power cable and connecting cables to become broken, leading to electric
shock and fire.
Do not use any damaged power cable, connecting cable, or plug.
Failure to observe this precaution can lead to electric shock, short circuit, or
fire.
If any part must be replaced or requires repair, 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 site 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 flash directly during welding, your eyes may be damaged.
If any surface flash and expulsion get in your eye, you may lose your
eyesight.
WARNING
!

IS-200A
1. Special Notes
1-3
!
Apply the specified supply voltage.
Application of a voltage outside the specified range may result in fire or
electric shock.
Do not allow water to come in contact with the equipment.
Water on the electric parts can cause electric shock and short circuit.
!
Use proper tools (wire strippers, pressure wire connectors, etc.) for
terminal treatment of the connecting cables.
Do not cut the wire conductor; fire or electric shock may result.
!
Install the equipment on a firm and level surface.
Injury may result if the equipment falls or is dropped.
Do not sit on or place objects on the Power Supply.
Failure to observe this precaution may lead to malfunction.
!
Keep combustible matter away from the Power Supply.
Surface flash and expulsion may ignite combustible matter. If it is
impossible to remove all combustible matter, cover it with non-combustible
material.
Do not cover the Power Supply with a blanket, cloth, etc.
Do not cover the Power Supply with a blanket, cloth, etc. while it is in use.
The cover may be overheated and burned.
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
!

IS-200A
1. Special Notes
1-4
(2) Precautions for Handling
Any work on this Power Supply must be performed only by the personnel with
sufficient knowledge and experience regarding an inverter welding power
supply.
Install this Power Supply on a firm and level surface. Operation on an incline
may result in malfunction.
For ventilation, provide 10-cm clearances at the intake and exhaust.
When transporting or moving the Power Supply, do not lay it down and be sure
to hold the underside when transporting. Holding a projection such as the
terminal cover may cause damage. Also, handle the Power Supply with care
so as not to make an impact such as drop on it.
Do not install the Power Supply in the following locations:
Damp areas (where the humidity is higher than 90%),
areas where temperatures are above 40°C or below 5°C
areas near a high noise source,
areas where chemicals are handled,
areas where water may condense,
dusty areas,
areas exposed to large amounts of vibration or shock, and
areas at an altitude above 1000 meters.
Clean the exterior of the Power Supply using a soft, dry cloth or one slightly
dampened with water. If the Power Supply is very dirty, use diluted neutral
detergent or alcohol. Do not use paint thinner, benzine, etc., as they may
discolor or deform the Power Supply.
Do not insert a screw, coin, etc. into the Power Supply, as they may cause
malfunction.
Operate the Power Supply in accordance with the method described in this
operation manual.
Press switches/buttons carefully by hand. Handling them roughly (using a
screwdriver or the tip of pen) may result in a malfunction or failure.
Press switches/buttons one at a time. Pressing more than one switch/button at
a time may result in a malfunction or failure.
The Power Supply is not equipped with auxiliary power such as an outlet for
lighting.
The program box, cable to supply power, the welding head, the welding
transformer, and cables for connecting among the welding head, the welding
transformer and the Power Supply are separately needed to use the Power
Supply.
The I/O signal line to start the Power Supply is not attached. Prepare the
crimp-on terminal and line for wiring to the terminal block.

IS-200A
1. Special Notes
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.
(4) Warning Label for Safety
On the main body is warning label for safety. Its location and meaning are as
noted below.
Location: Output terminal cover.
Meaning: Shock hazard.

IS-200A
2. Features
2-1
2. Features
The FINE SPOT-INVERTER IS-200A is a DC inverter-type, power supply specially
designed for spot welding and fusing.
The power supply is compact and convenient to transport or reposition. A monitor
function is provided to enable judgment of defective or non-defective welding.
Welding-current monitoring function for judgment of weld quality
Six control systems (Primary constant-current effective value control,
Secondary constant-current effective value control, Secondary constant-power
effective value control, Primary constant-current peak value control,
Secondary constant-voltage effective value control, and Constant-phase
control) for stable weld quality
Comes equipped with a current-shutoff function, which shuts off current in
response to external input (e.g., displacement of the electrode), ensuring stable
fusing.
Use of an inverter allows for high power factor and stable power conditions
Easy setting of a variety of items through the menu selection system
Four protective functions for maximum ease of operation
・Overcurrent-detection function
・No-current / no-voltage detection function
・Thermostat-fault detection function
・Self diagnostics

IS-200A
3. Name and Functions of Each Section
3-1
3. Name and Functions of Each Section
(1) Front Panel
1) [WELD POWER] lamp (Green LED)
This lamp lights when the power is supplied to the Power Supply.
2) [READY] lamp (Green LED)
This lamp lights when the system is ready to start welding.
To turn on this lamp, writing data into the flash memory is complete and:
・[WELD ON/OFF] key
・WELD ON/OFF setting for program unit MA-627A and
・External WELD ON/OFF signal
must all be on.
POWER
ON
OFF
RESET
TROUBLE
WELD
POWER
WELD
ON/OFF
READY
START
WELD
TROUBLE
INDICATOR
PROGRAM
MONITOR
I/O
RS-232C/485
10)
9)
8)
1)
2)
3)
4)
5)
6)
7)
ＯＮ／Ｏ Ｆ Ｆ
ＷＥ ＬＤ
ＳＴＡＲＴ
ＰＯＷ Ｅ Ｒ
ＲＥＡＤ Ｙ
ＷＥ ＬＤ
ＷＥ ＬＤ
ＴＲＯＵＢ ＬＥ
ＴＲＯＵＢ ＬＥ
ＲＥＳＥ Ｔ

IS-200A
3. Name and Functions of Each Section
3-2
3) [START] lamp (Green LED)
This lamp remains lit while the start signal is input.
4) [WELD] lamp (Green LED)
This lamp remains lit while the welding current is flowing.
5) [TROUBLE] lamp (Orange LED)
This lamp lights when an error is detected. At this time, the program unit emits a
beeping sound, and the Power Supply operation is interrupted.
6) [TROUBLE RESET] key
If this key is pressed while the [TROUBLE] lamp is lit, the lamp is turned off.
The [TROUBLE] lamp lights up again, however, as long as the error remains
uncorrected. Eliminate the cause of the error before pressing this [TROUBLE
RESET] key.
If the [TROUBLE] lamp lights up during operation, press the [TROUBLE
RESET] key, then input the start signal again; operation will then resume.
7) [WELD ON/OFF] key
This key is one of those required to activate the [READY] lamp.
Pressing this key alternately lights and shuts off this lamp. When the key is
toggled on, the [READY] lamp lights, and when the key is toggled off, the lamp is
turned off. Hold down this key to toggle ON and OFF.
8) Welding Current Input Breaker Lever
Raise the lever to supply power and lower it to shut off power.
9) [RS485/RS232C] connector
For external communication. (See 10. External Communication Function.)
10) [PROGRAM MONITOR I/O] connector
Connects to Program Unit MA-627A. Used for welding schedule setting and/or
reviewing monitor results.

IS-200A
3. Name and Functions of Each Section
3-3
(2) Rear Panel
1) Connecting terminal block for external input/output signal
This terminal block is used to input the schedule signals and output trouble
signals.
2) Terminal block for welding power input/output
This terminal block is used to connect to the input of the welding transformer and
the welding power supply (three-phase). The cable-mounting screw is for M5.
3) Welding Transformer [I/O] connector
For connecting the [SENS] cable for the welding transformer manufactured by
Amada Miyachi Co., Ltd.
50/60Hz
200V-240V ～
IN
POWER
OUTPUT
L1
L2
L3
U
V
I/OI/O
(With terminal cover mounted) (With terminal covers removed)
I/O
terminal
cover
I/O power supply cover 3)
2)
1)

IS-200A
3. Name and Functions of Each Section
3-4
(3) MA-627A (Sold Separately)
1) [TROUBLE RESET] key
If this key is pressed while the [TROUBLE] lamp on the Power Supply is lit, the
lamp goes off. This key has the same function as the [TROUBLE RESET] key on
the Power Supply.
2) [CURSOR] keys
These keys are used to move the cursor (> or ) to select an item.
3) [+ON/-OFF] keys
These keys are used to change the value of a selected item or to turn the item on
and off. When the [+ON] key is pressed, the selected value increases, and if the
[-OFF] key is pressed, the value decreases. The selected item is activated by
pressing the [+ON] key, and turned off by pressing the [-OFF] key.
4) [ENTER] key
This key is used to write the set or changed value and [ON/OFF] data to the
MA-627A. After any data is set or changed, be sure to press this [ENTER] key to
write the relevant data before moving the cursor.
If this [ENTER] key is not pressed, the MA-627A will not save the set data.
5) [MENU] key
This key is used to display the [MENU] screen. Press this key to return to the
[MENU] screen from any other screen.
ON
OFF
CURSOR
①②③
④⑤
⑥
TROUBLE
RESET ENTER
MENU
1)
6) 5)4)3)2)

IS-200A
3. Name and Functions of Each Section
3-5
6) Connector
This connector is used to connect the circuit cable. Connect the other end of the
cable to the [PROGRAM MONITOR I/O] connector of the Power Supply.
CAUTION
No settings or changes may be made to any item from the receipt of the start
signal through the end of the weld sequence and turning off the Start signal.
If setting is performed while the start signal is input, the following screen
appears. Turn off the start signal and press [TROUBLE RESET] key 1).
(Note) While the start signal is input, 1) [TROUBLE RESET] key, [TROUBLE
RESET] key on the front panel (see (1) 6)) and the error reset input
terminal of the external I/O (see 6. Interface) do not work. Be sure to turn
off the start signal before resetting an error.
IS -200A IS BUSY OR NOT CONNECTED
Please RESET key in

IS-200A
4. How to Operate Screens
4-1
4. How to Operate Screens
(1) MENU Screen
The MA-627A has various functions that are set from the respective screens. The
[MENU] screen displays these functions in menu form.
Move the cursor (>) to the desired item; press the [ENTER] key to move to the
selected screen (with the exception of the MODE SELECT screen).
The display of the [MENU] screen changes depending on the PROGRAM
PROTECT setting (See (12) PROGRAM PROTECT MODE Screen).
The numbers (1) to (11) indicate the paragraph No. within the chapter.
(1)
(2)
(3)
(4)
(5)
[MENU]
>POWER SUPPLY STATE COPY SETUP DATA
SCHEDULE MODE SELECT
MONITOR MONITOR MODE
MONITOR SET STEPPER COUNT
I/O CHECK
RESET TO DEFAULT
(6)
(7)
(8)
(9)
(10)
(11)
(2) POWER SUPPLY STATE Screen
This screen is used to display and set data for the Power Supply.
-POWER SUPPLY STATE
LCD CONTRAST(T:0 ---> 7:D) 2
CONTROL # 01
PROGRAMMED DATE 2000.01.01
WELD TRANS FREQUENCY
POWER SOURCE FREQUENCY
MA-627A ROM VERSION # [ ]
IS -200A ROM VERSION # [ ]
(a)
(b)
(c)
(d)
(e)
(f)
(g)
Appearance of characters used in the following explanation
Shaded characters (000) An item for which a value must be input, or which must
be set ON or OFF. Move the cursor ( ) to the number
(or to ON or OFF) to be selected or changed, and
press the [+ON/-OFF] key.
Outlined characters ( ) An item that is indicated on-screen but that cannot be
changed.

IS-200A
4. How to Operate Screens
4-2
(a) LCD CONTRAST
Sets the screen contrast. The contrast can be set in a range from 0 to 7. The
larger the value, the darker the screen. Adjust the contrast if the screen is
difficult to view.
(b) CONTROL #
Input the identification No. of your Power Supply.
If you have two or more Power Supply units, input 01 for the first one, 02 for the
second one, 03 for the third one, and so on.
(c) PROGRAMMED DATE
Input the date on which a schedule is set as data. The date does not affect the
set schedule. When the Power Supply memory is initialized, the date is also
initialized to the date on which the ROM version is created.
(d) WELD TRANS FREQUENCY
Change the output frequency of the inverter power supply for the Power
Supply. (Fixed to 2,000 Hz and cannot be changed.)
(e) POWER SOURCE FREQUENCY
The frequency of the welding power is measured and indicated automatically.
(f) MA-627A ROM VERSION #
Indicates the ROM version No. of program unit MA-627A.
(g) IS-200A ROM VERSION #
Indicates the ROM version No. of the Power Supply.
(Note) The Power Supply writes data into the flash memory on the control board
when a setting is changed or a schedule data is copied. The [READY] lamp
on the front panel and the external READY signal are turned off during
writing. Check that the [READY] lamp is turned on to start welding. It takes
about 2 seconds at longest to write data into the flash memory.

IS-200A
4. How to Operate Screens
4-3
(3) SCHEDULE Screen
Up to 255 welding schedules can be set on the Power Supply. These schedules
are indicated as SCHEDULE #1 to #255.
This screen is used to set the SCHEDULE No., length of weld time, welding current,
and so on. This data can be indicated using the 12 modes shown below, but the
indicated items are the same for all modes.
The ms mode or CYC mode can be changed via WELD TIME (See (7)(i)) on the
MODE SELECT screen.
(a)
(b)
(c)
(g)
-SCHEDULE #255 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 0000 0000 000 000 00000 0000ms
UP WELD DOWN HEAT
1 000 000 000 ms 1.00kA
2 000 000 000 ms 1.00kA
3 000 000 000 ms 1.00kA
PAGE DOWN  HEAT CTRL0:<PRIMARY RMS >
(f)
(d)
(e)
<Primary constant-current
effective value control ms mode>
<Primary constant-current
effective value control CYC mode>
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 0000 0000 000 000 00000 0000ms
UP WELD DOWN HEAT
1 000 000 000 ms 1.00kA
2 000 000 000 ms 1.00kA
3 000 000 000 ms 1.00kA
PAGE DOWN  HEAT CTRL0:<PRIMARY RMS >
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 000 000 00 00 000 00 CYC
UP WELD DOWN HEAT
1 00 00 00 CYC 1.00kA
2 00 00 00 CYC 1.00kA
3 00 00 00 CYC 1.00kA
PAGE DOWN  HEAT CTRL0:<PRIMARY RMS >
<Secondary constant-current
effective value control ms mode>
<Secondary constant-current
effective value control CYC mode>
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 0000 0000 000 000 00000 0000ms
UP WELD DOWN HEAT
1 000 000 000 ms 1.00kA
2 000 000 000 ms 1.00kA
3 000 000 000 ms 1.00kA
PAGE DOWN  HEAT CTRL1:<SECONDARY RMS >
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 000 000 00 00 000 00 CYC
UP WELD DOWN HEAT
1 00 00 00 CYC 1.00kA
2 00 00 00 CYC 1.00kA
3 00 00 00 CYC 1.00kA
PAGE DOWN  HEAT CTRL1:<SECONDARY RMS>
The items (a) to (f) indicated at the top screen are described beginning on Page
4-5.

IS-200A
4. How to Operate Screens
4-4
<Secondary constant-power
effective value control ms mode>
<Secondary constant-power
effective value control CYC mode>
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 0000 0000 000 000 00000 0000ms
UP WELD DOWN HEAT
1 000 000 000 ms 1.00kW
2 000 000 000 ms 1.00kW
3 000 000 000 ms 1.00kW
PAGE DOWN  HEAT CTRL2:<POWER RMS >
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 000 000 00 00 000 00 CYC
UP WELD DOWN HEAT
1 00 00 00 CYC 1.00kW
2 00 00 00 CYC 1.00kW
3 00 00 00 CYC 1.00kW
PAGE DOWN  HEAT CTRL2:<POWER RMS >
<Primary constant-current
peak value control ms mode>
<Primary constant-current
peak value control CYC mode>
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 0000 0000 000 000 00000 0000ms
UP WELD DOWN HEAT
1 000 000 000 ms 1.00kA
2 000 000 000 ms 1.00kA
3 000 000 000 ms 1.00kA
PAGE DOWN  HEAT CTRL3:<PRIMARY LIMIT>
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 0000 0000 000 000 000 00 CYC
UP WELD DOWN HEAT
1 00 00 00 CYC 1.00kA
2 00 00 00 CYC 1.00kA
3 00 00 00 CYC 1.00kA
PAGE DOWN  HEAT CTRL3:<PRIMARY LIMIT>
<Secondary constant-voltage
effective value control ms mode>
<Secondary constant-voltage
effective value control CYC mode>
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 0000 0000 000 000 00000 0000ms
UP WELD DOWN HEAT
1 000 000 000 ms 0.20V
2 000 000 000 ms 0.20V
3 000 000 000 ms 0.20V
PAGE DOWN  HEAT CTRL4:<VOLTAGE RMS >
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 000 000 00 00 000 00 CYC
UP WELD DOWN HEAT
1 00 00 00 CYC 0.20V
2 00 00 00 CYC 0.20V
3 00 00 00 CYC 0.20V
PAGE DOWN  HEAT CTRL4:<VOLTAGE RMS >
<Constant-phase control ms mode> <Constant-phase control CYC mode>
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 0000 0000 000 000 00000 0000ms
UP WELD DOWN HEAT
1 000 000 000 ms 10.0 %
2 000 000 000 ms 10.0 %
3 000 000 000 ms 10.0 %
PAGE DOWN  HEAT CTRL5:<FIXED PULSE >
-SCHEDULE #001 WELD ON/OFF OFF
SQD SQZ COOL1 COOL2 HOLD OFF
TIME 000 000 00 00 000 00 CYC
UP WELD DOWN HEAT
1 00 00 00 CYC 10.0 %
2 00 00 00 CYC 10.0 %
3 00 00 00 CYC 10.0 %
PAGE DOWN  HEAT CTRL5:<FIXED PULSE >

IS-200A
4. How to Operate Screens
4-5
(a) SCHEDULE #
Select from #1 to #255 to set the SCHEDULE.
Normally select #1 first, then select additional schedules in sequential order.
(b) TIME
Set the time for each operation during welding. Units of time are in ms or CYC.
For each operation, see 8. Timing Chart.
SQD / Squeeze delay time Length of time added to SQZ; only for the first
weld after start signal in repeat operation
SQZ / Squeeze time Length of time until proper squeeze is applied
to workpiece
COOL1 and COOL2 / Cooling
time 1 and Cooling time 2
Length of time to cool workpiece after turning
off welding current
HOLD / Hold time Length of time to hold workpiece after turning off
welding current
OFF / Off time
Length of time to turn off valve signal between
repeated operations
(No repeat operation if set to "0" or the upper/
lower limit judgment error occurs in a
sequence.)
(c) WELD (1, 2, 3)
Set the length of time to allow welding current to flow.
UP
Set the upslope time (to increase the welding current gradually).
DOWN
Set the downslope time (to decrease the welding current gradually).
(Note) Upslope / Downslope waveform when COOL (cooling time) is set to 0.
The welding current normally increases from the minimum value to the set
value in Upslope and decreases from the set value to the minimum value
in Downslope, but the following is an exception.
When the upslope time is set for the subsequent stage in the
multi-stage welding.
The upslope in the subsequent stage starts from the set current of the
previous current. (See example below.)
WELD1
WELD2
{
Upslope
Upslope in WELD2
increases from the
set current in WELD2.

IS-200A
4. How to Operate Screens
4-6
When the Power Supply starts with the following setting, E-10
(schedule setting error) will occur.
・When the current value in the previous stage is equal to or larger than
the current value in the subsequent stage even with the upslope
setting in the subsequent stage. (See example below.)
When producing
a waveform like
this, set COOL
between WELD1
and WELD2.
When the downslope time is set for the previous stage in the
multi-stage welding.
The downslope in the previous stage ends at the set current of the
subsequent stage. (See example below.)
{
WELD2
WELD3
Downslope
Downslope in WELD2
decreases to the
set current in WELD3.
When the Power Supply starts with the following setting, E-10
(schedule setting error) will occur.
・When the current value in the previous stage is equal to or smaller
than the current value in the subsequent stage even with the
downslope setting in the previous stage. (See example below.)
When producing
a waveform like
this, set COOL
between WELD2
and WELD3.
(Note) Set 1 ms or more for at least one of WELD1, WELD2 and WELD3. Also,
set the total time of UP and DOWN to be shorter than WELD. If not, E-10
(schedule setting error) will be displayed.
WELD2
WELD1
Upslope
Although the upslope time is set in WELD2,
WELD1 ＞ WELD2.
WELD2
WELD3
Downslope
Although the downslope time is set in WELD2,
WELD2 ＜ WELD3.