Amada IS-800A-10 Series User manual

Z06OM1182586-12
OPERATION MANUAL
Original instructions
DC INVERTER WELDING POWER SUPPLY
IS--10- □□
800A
1400A

IS-800A/1400A
Contents
1
Thank you for purchasing our DC Inverter Welding Power Supply IS-800A-10-□□
/1400A-10-□□.
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 Precautions ........................................................................................................ 1-1
(1) Safety Precautions....................................................................................................... 1-1
(2) Precautions for Handling ............................................................................................. 1-4
(3) On Disposal ................................................................................................................. 1-5
(4) Warning Labels for Safety ........................................................................................... 1-5
2. Features ........................................................................................................................... 2-1
3. Name and Functions of Each Section ........................................................................... 3-1
(1) Front ............................................................................................................................ 3-1
(2) Internal and Rear Panel............................................................................................... 3-3
(3) MA-660A (Sold Separately) ......................................................................................... 3-5
4. How to Operate Screens................................................................................................. 4-1
(1) MENU Screen.............................................................................................................. 4-1
(2) POWER SUPPLY STATE Screen ............................................................................... 4-2
(3) SCHEDULE Screen..................................................................................................... 4-3
(4) MONITOR Screen ..................................................................................................... 4-14
(5) MONITOR SET Screen ............................................................................................. 4-18
(6) NG SIGNAL SELECT Screen.................................................................................... 4-20
(7) OUTPUT SELECT Screen......................................................................................... 4-22
(8) COPY SETUP DATA Screen..................................................................................... 4-23
(9) MODE SELECT Screen............................................................................................. 4-25
(10) MONITOR MODE Screen........................................................................................ 4-38
(11) STEPPER COUNT Screen...................................................................................... 4-44
(12) PRECHECK Screen ................................................................................................ 4-46
(13) I/O CHECK Screen .................................................................................................. 4-47
(14) RESET TO DEFAULT Screen ................................................................................. 4-48
(15) PROGRAM PROTECT MODE Screen.................................................................... 4-49
5. Connection Procedures.................................................................................................. 5-1
(1) Basic Configuration...................................................................................................... 5-1
(2) Earth Leakage Breaker................................................................................................ 5-4
(3) Connection Method...................................................................................................... 5-5
(4) Input/Output Cable....................................................................................................... 5-7
(5) Noise Filter................................................................................................................... 5-8
This operation manual is common to both IS-800A-10-
□□
and
IS-1400A-10-
□□
.
IS-800A-10-
□□
is used in the explanatory drawings unless there is a
significant difference.
ATTENTION

IS-800A/1400A
Contents
2
6. Interface ........................................................................................................................... 6-1
(1) Connection Diagram for External Input/Output Signals ............................................... 6-1
(2) Description of External I/O Signals.............................................................................. 6-3
(3) List of External Output Signals .................................................................................... 6-9
(4) Connection of Input Signals....................................................................................... 6-10
7. Basic Operation............................................................................................................... 7-1
8. Timing Chart .................................................................................................................... 8-1
(1) Basic Sequence........................................................................................................... 8-1
(2) Detailed Description of Welding Current and Sequence in the Event of an Error ....... 8-3
(3) Sequence at PULSATION Setting............................................................................... 8-5
(4) Sequence at 2-Stage Start Operation.......................................................................... 8-6
9. External Communication Function................................................................................ 9-1
(1) Introduction.................................................................................................................. 9-1
(2) Data Transmission....................................................................................................... 9-1
(3) Configuration ............................................................................................................... 9-2
(4) Protocol........................................................................................................................ 9-3
(5) Data Code Table.......................................................................................................... 9-7
10. Specifications ................................................................................................................ 10-1
(1) Specifications............................................................................................................. 10-1
(2) Options (Sold Separately).......................................................................................... 10-3
(3) Duty Cycle Graph ...................................................................................................... 10-4
(4) Weld Time Limit......................................................................................................... 10-5
(5) Board and Component List for Maintenance ............................................................. 10-6
(6) Major Components List.............................................................................................. 10-6
(7) Schematic.................................................................................................................. 10-7
11.Outline Drawing............................................................................................................. 11-1
(1) IS-800A...................................................................................................................... 11-1
(2) IS-1400A.................................................................................................................... 11-2
12. Troubleshooting ............................................................................................................ 12-1
(1) Fault Code List........................................................................................................... 12-1
(2) When the Welding Does not Start Even if the Start Signal is Input ........................... 12-5
13. Schedule Data Table ..................................................................................................... 13-1
Index ..........................................................................................................................................1
EU Declaration of Conformity

IS-800A/1400A
1. Special Precautions
1-1
Denotes operations and practices that
may result in personal injury or
damage to the equipment if not
correctl
y
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.
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.
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. When inspecting the interior of the
Power Supply, be sure to wait at least 20 minutes after turning off the power
source of the Power Supply and confirm that the CHARGE LAMP lamp is
turned off.
Never disassemble, attempt to repair, or modify the Power Supply.
These actions can cause electric shock and fire.
Consult us or your distributor for inspection and repair.
Never burn, destroy, cut, crush or chemically decompose the Power
Supply.
This product incorporates parts containing gallium arsenide (GaAs).
Denotes operations and practices
that may imminently result in serious
injury or loss of life if not correctly
followed.
DANGER
!
Denotes operations and practices
that may result in serious injury or
l
oss
o
f lif
e
if n
o
t
co
rr
ec
tl
y
f
o
ll
o
w
ed
.
WARNING
!
!
DANGER
!
CAUTION
!

IS-800A/1400A
1. Special Precautions
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. Be sure to perform grounding work.
400V AC of input voltage: at least class C, 200V AC of input voltage: at least
class D
!
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.
!
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.
!
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 gets in your eye, you may lose your
eyesight.
WARNING
!

IS-800A/1400A
1. Special Precautions
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-800A/1400A
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. Moving the Power Supply by hand must be done by at least two people.
When lifting the Power Supply using a crane, set the belt to the eyebolt on the
upper surface of the Power Supply.
Install this Power Supply on a firm and level surface. If it is inclined,
malfunction may result.
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.
Following cables are separately needed to use the Power Supply:
Program box, and circuit cable connecting to the Power Supply,
power cable, and cables connecting between the Power Supply and
welding transformer,
welding transformer,
welding head, and
secondary conductor connecting between welding head and welding
transformer.
The RS-485/232C communication signal line is not attached. Solder the line to
the RS-485/232C connector.
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.
The Power Supply should be used with the industry power transmission and
distribution network (industrial distribution equipment). Do not connect it to the
public low-voltage distribution network (distribution equipment for
non-industrial office or home use).

IS-800A/1400A
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.
(4) Warning Labels for Safety
On the main body are warning labels for safety. Their locations and meanings are
as noted below.
DANGER
NOT TO GET AN ELECTRIC SHOCK.
TO TURN OFF MAIN CIRCUIT BREAKER
WHEN INSPECTING INTERNAL, MAKE SURE
点検を行う際は必ず溶接電源の供給を止めた後、
本製品内部には非常に高い電圧が掛かっています｡
AND WAIT FOR AT LEAST 20 MINUTES
20分間待ってから行って下さい。
Location: Power Supply interior, front and acrylic cover
Meaning: Shock hazard
注意
CAUTION
CONNECT GROUNDING WIRE.
アース線を接続する事
注意
DO NOT OPEN COVER.
TOUCHING THE INSIDE
MAY CAUSE AN ELECTRIC SHOCK.
CAUTION
感電の恐れあり
カバーを開けるな
THE EQUIPMENT DOES NOT FALL BELOW 0ﾟC. WHEN AMBIENT TEMPERATURE
COOLING WATER WILL FREEZE AND EQUIPMENT MAY BE BROKEN BELOW 0ﾟC.
注意
気温が0ﾟC以下になりますと､冷却用の水が凍結し､装置が破損する
おそれがあります｡特に寒冷地におきましては、凍結しやすいため､
0℃以下の環境にならないようご注意ください｡
0℃以下になる場合は､装置内の水を完全に抜き取ってください。
PARTICULARLY IN COLD DISTRICTS,TAKE CARE THAT THE TEMPERATURE OF
WILL FALL BELOW 0ﾟC, MAKE SURE TO DRAIN WATER FROM EQUIPMENT.
CAUTION
！
ＢＥ ＳＵＲＥ ＴＯ ＩＮＳＴＡＬＬ ＡＮ ＥＡＲＴＨ ＬＥＡＫＡＧＥ
ＢＲＥＡＫＥＲ ＯＦ ＡＰＰＲＯＰＲＩＡＴＥ ＣＡＰＡＣＩＴＹ ＯＮ
ＯＶＥＲＣＵＲＲＥＮＴ ＡＮＤ ＥＬＥＣＴＲＩＣ ＬＥＡＫ．
ＰＯＷＥＲ ＩＮＰＵＴ ＴＯ ＰＲＯＴＥＣＴ ＦＲＯＭ ＡＮ
電源入力には過電流保護及び漏電保護のため、必ず適切な容量の漏電ブレーカー
を取り付けて下さい。
ＣＡＵＴＩＯＮ
Location: Power Supply interior, side
surface of acrylic cover
Meaning: Shock hazard
Location: Front door
Meaning: Shock
hazard
Location: Rear panel
Meaning: Cautions for cooling water
Location: Power Supply interior, front and
acrylic cover
Meaning: Caution for leakage breaker
connection
Location: Front door
Meaning: Caution for grounding
connection

IS-800A/1400A
2. Features
2-1
2. Features
The IS-800A/1400A is a DC inverter welding power supply, large in capacity
and specially but small in size, specially
designed to be used for spot
welding and fusing.
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. The
control method can be set for WELD1 to WELD3, respectively.
Pulsation and upslope (downslope) can be set for WELD1 to WELD3, respectively.
Since the welding transformer turn ratio, the welding frequency (600
Hz to 3000 Hz in
units of 100
Hz) and the current range can be set for each schedule, the Power
Supply corresponds to finer applications.
Comes equipped with a current-shutoff function, which shuts off current in response
to external input (e.g., displacement of the electrode) for WELD1 to WELD3
respectively, 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
Applicable to inverter transformers manufactured by various companies by changing
the frequency (600
Hz to 3000 Hz in units of 100 Hz).
Seven protective functions for maximum ease of operation
• No-current / no-voltage
• Overcurrent
• Temperature
• Self diagnostics error
• Grounding error
• Load short error
• Phase error
Languages available are Japanese, English, Chinese and Korean.

IS-800A/1400A
3. Name and Functions of Each Section
3-1
3. Name and Functions of Each Section
(1) Front
WELD POWER lamp
Lights up when the power is supplied to IS-800A/1400A.
READY lamp
Lights up when the system is ready to start welding.
To turn on this lamp:
• WELD ON/OFF key
• WELD ON/OFF setting of Program Unit MA-660A and
• External WELD ON/OFF signal
must all be turned on.
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.
WELD
RESET
①②③④⑤ ⑥ ⑦
⑧
ON/OFF
WELDSTARTREADY TROUBLE
WELD POWE R
WELD
ON/OF F
RESET
TROUBLEWELDSTARTREADYPOWER
WELD
⑨
Front Panel

IS-800A/1400A
3. Name and Functions of Each Section
3-2
START lamp
Stays lit while the start signal is input.
WELD lamp
Stays lit while the welding current is flowing.
TROUBLE lamp
Lights up when trouble is detected. At this time, the program unit makes a
peeping sound, and the work done by IS-800A/1400A is interrupted.
RESET key
If this key is pressed while the TROUBLE lamp is lit, that lamp is turned off.
The TROUBLE lamp lights up again, however, as long as there is trouble.
Accordingly, remove the cause of the trouble before pressing this RESET key.
If the TROUBLE lamp lights up while work is being done, press the RESET key,
then input the start signal again, and the work continues.
WELD ON/OFF key
This key is one of those which are required for turning on the READY lamp.
Each time this key is pressed, it is turned ON and OFF alternately. If it is turned
on, the READY lamp lights up, and if the key is turned off, the lamp goes off.
Hold down this key to toggle ON and OFF.
Front Door Fixing Screw
After closing the front door, secure it with this screw.
Normally, keep the front door closed.
Eyebolt
Used to set the belt when lifting IS-800A/1400A using a crane.

IS-800A/1400A
3. Name and Functions of Each Section
3-3
(2) Internal and Rear Panel
IS-800A (When the front door is opened, the internal panel appears.)
IS-1400A (When the front door is opened, the internal panel appears.)
CHARGELAMP
PE
L3
L2
L1
V
U
OUTPUT
INPUT
～AC480V
AC380V
COIL IN RS485/RS232C
21 19
1
1
5 3
22
LB1160791
OUT5 OUT4 OUT3 OUT2
/COUNT RESET
WE3 STOP
/WELD COUNT
WE2 STOP
/PARITY
WE1 STOP
SCH128
SCH64 SCH32 SCH16 SCH 8 SCH 4 SCH 2
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
2416
15
14
13
12
11
10
9
8
7
6
VOLT SENS
SOL 2 SOL 1
SOL COM
SOL POWER
OUT COM
OUT1
NG1(ERROR) STEP RESET
1ST COM
NG2(CAUTION)
CONT ROL SIG
18 20
18
4 2
2317
4
ERROR RESET
2ND
PROGRAM
MONITOR I/O
STEP MODE
12
10
11
9
1
2
3
4
5
6
7
8
13
14
15
16
17
18
19
20
21
22
23
24
25
SOL COM
EX SOL1
RETRACTION2
RETRACTION1
BACK STEP
COM
RELAY SW
EX SOL2
EX SOL3
EX SOL4
RETRCT SOL1
RETRCT SOL2
ANALOG
IN 1
ANALOG
IN 2
ANALOG
OUT 1
ANALOG
OUT 2
CURR SIG
CURR COM
VOLT SIG
VOLT COM
I/O CONNECTOR
気温が0ﾟC以下になりますと､冷却用 の水が凍結し､装置が破損する
おそれがあります｡特に寒冷地におきましては、凍結しやすいため､
0℃以下の環境にならないようご注意ください｡
CAUTION
WILL FALL BELOW 0ﾟC, MAKE SURE TO DRAIN WATER FROM EQUIPMENT.
PARTICULARLY IN COLD DIST RICTS,TAKE CARE THAT T HE TEMPERATURE OF
0℃以下にな る場 合は､ 装置内の 水 を完全に 抜 き取っ てくださ い 。
COOLING WATER WIL L FREEZE AND EQUIPMENT MAY BE BROKEN BELOW 0ﾟC.
THE EQUIPME NT DOES NOT FALL BELO W 0ﾟC.
WATER OUT
WATER IN
気温が0ﾟC以下になりますと､冷却用 の水が凍結し､装置が破損する
おそれがあります｡特に寒冷地におきましては、凍結しやすいため､
0℃以下の環境にならないようご注意ください｡
CAUTION
WILL FALL BELOW 0ﾟC, MAKE SURE TO DRAIN WATER FROM EQUIPMENT.
PARTICULARLY IN COLD DIST RICTS,TAKE CARE THAT T HE TEMPERATURE OF
0℃以下にな る場 合は､ 装置内の 水 を完全に 抜 き取っ てくださ い 。
COOLING WATER WIL L FREEZE AND EQUIPMENT MAY BE BROKEN BELOW 0ﾟC.
THE EQUIPME NT DOES NOT FALL BELO W 0ﾟC.
WATER OUT
WATER IN
気温が0ﾟC 以下 に なりま す と､冷却 用 の水が凍 結 し､ 装置が 破損 する
おそれがあります｡特に寒冷地におきましては、凍結しやすいため､
0℃以下の環 境 になら ないよう ご 注意く ださい｡
CAUTION
WILL FALL BELOW 0ﾟC, MAKE SURE TO DRAIN WATER FROM EQUIPMENT.
PARTICULARLY IN COLD DISTRICTS,TAKE CARE THAT THE TEMPERATURE OF
0℃以下になる場合は､装置内の水を完全に抜き取ってください。
COOLING WATER WILL FREEZE AND EQUIPMENT MAY BE BROKEN BELOW 0ﾟC.
THE EQUIPMENT DOES NOT FALL BELOW 0ﾟC.
RS485/R S232 CCOIL IN
PE
～AC480 V
AC380V
INPUTOUTPUT
L3L2L1VU
2
4
18
20
22
18
CONTROL SIG
NG2(CAUTION)
COM
1ST
2ND
ERROR RESET
STEP RESET
NG1(ERROR)
OUT1
OUT COM
SOL POWER
SOL COM
SOL 1
SOL 2
VOLT SENS
46
7
8
9
10
11
12
13
14
15
16
17 23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
SCH 2
SCH 4
SCH 8
SCH16
SCH32
SCH64
SCH128
WE1 STOP
/PARITY
WE2 STOP
WE3 STOP
/COUNT RESET
OUT2
OUT3
OUT4
OUT5
LB1160791
3
5
1
1
19
21
/WELDCOUNT
PROGRAM
MONITOR I/O
12
10
11
9
1
2
3
4
5
6
7
8
13
14
15
16
17
18
19
20
21
22
23
24
25
SOL C OM
EX SOL1
RETRACTION2
RETRACTION1
BACK STEP
COM
RELAY SW
EX SOL2
EX SOL3
EX SOL4
RETRCT SOL1
RETRCT SOL2
STEP MODE
ANALOG
IN 1
ANALOG
IN 2
ANALOG
OUT 1
ANALOG
OUT 2
CURR SIG
CURR COM
VOLT SIG
VOLT COM
I/O CONNECTOR
WATER OUTWATER IN WATER OUTWATER IN















Internal
Internal Rear
Rear





IS-800A/1400A
3. Name and Functions of Each Section
3-4
Connecting Terminal Strip for External Input/Output Signals
Used to input start signals and output trouble signals.
Specifications of Terminal Strip for External Input/Output Signals
Crimp-on terminals allowed to
be installed per a terminal 2 pieces max.
Size of crimp-on terminal M3 or M3.5 (7.1 mm wide)
Recommended cable
cross-section
0.75 mm2min. for pin nos. 34 to 37
0.5
mm2min. for pin nos. 1 to 33, 38 and 39
Terminal Block for Welding Power Output
Used to connect to the input of the welding transformer.
Terminal Block for Welding Power Input
Used to accept the three-phase power supply for welding. Do not connect the
power supply with voltage other than the specified.
Cooling Water Pipe Connector
Used for supply and drain of cooling water, which cools the inside of the
enclosure and power supply unit.
CHARGE LAMP lamp
The electrolytic capacitor in the body of IS-800A/1400A is charged with high
voltage.
The charge level of this electrolytic capacitor is indicated by the brightness of
the CHARGE LAMP lamp. The more the capacitor is charged, the brighter the
CHARGE LAMP lamp is.
Do not touch the inside of the body while the CHARGE LAMP lamp
is lit, since you may get a severe electric shock.
COIL IN Connector
Used to connect the toroidal coil. It is used for the secondary constant-current
effective value control and secondary constant-power effective value control.
(The toroidal coil is optional.)
PROGRAM MONITOR I/O Connector
Used to connect Program Unit MA-660A to set the weld schedules and see the
monitored result.
RS485/232C Connector
For external communication. (See 9. External Communication Function.)
Cable Clamp
Used to dress and secure the I/O cables to IS-800A/1400A.
Shielded Wire Connecting Screw
Used to connect the I/O shielded wire.
DANGER
！

IS-800A/1400A
3. Name and Functions of Each Section
3-5
(3) MA-660A (Sold Separately)
CURSOR
ENTER
MENU
ON
OFFRESET
TROUBLE
TROUBLE RESET key
If this key is pressed while the TROUBLE lamp of IS-800A/1400A is lit, the
lamp goes off. It has the same function as the RESET key of IS-800A/1400A.
CURSOR keys
Used to move the cursor ( ) to select an item.
+ON/-OFF keys
Used to change the value of a selected item or turn it on and off.
ENTER key
Used to write the set or changed value and [ON/OFF] data in the Power Supply
connected to the MA-660A. After any data is set or changed, be sure to press
this ENTER key to write that data before moving the cursor.
If this ENTER key is not pressed, the Power Supply connected to the MA-660A
does not recognize the set data.
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 3 seconds at longest to change a setting, about 125 seconds to
copy a schedule, and about 5 seconds at longest to initialize schedules in the
flash memory. During that time, do not turn off the power.




IS-800A/1400A
3. Name and Functions of Each Section
3-6
MENU key
Used to display the MENU screen. Press this key to return to the MENU screen
from any other screens.
Connector
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 welding sequence and turning off the start
signal.
If setting is performed during the welding sequence, the following screen
appears. Press the TROUBLE RESET key .
(When connecting to the Power Supply, IS-800A)

IS-800A/1400A
4. How to Operate Screens
4-1
4. How to Operate Screens
ATTENTION
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 3 seconds at longest to change a setting, about 125 seconds to copy a
schedule, and about 5 seconds at longest to initialize schedules in the flash memory.
During that time, do not turn off the power.
(1) MENU Screen
The MA-660A 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.
The numbers (1) to (14) indicate the paragraph No. within the chapter.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)

IS-800A/1400A
4. How to Operate Screens
4-2
(2) POWER SUPPLY STATE Screen
This screen is used to display and set data for the Power Supply.
indicates settable items. Move the cursor ( ) to them to change the value.
(Same for all screens.)
(a) CONTRAST
Sets the screen contrast. The contrast can be set in a range from 0 to 9. The
larger the value, the brighter the screen. Adjust the contrast if the screen is
difficult to view.
(b) CONTROL #
Input the identification No. of your Power Supply. The setting range is 1 to 31.
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. Used for communication.
(c) PROGRAMED 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 program version is created.
(d) POWER SOURCE FREQUENCY
The frequency of the welding power is measured and indicated automatically.
(e) LANGUAGE
Select the language among Japanese, English, Chinese, and Korean.
(f) MA-660A PROGRAM VERSION
Indicates the program version No. of Program Unit MA-660A.
(g) MA-660A ( IS-800A/1400A ) PROGRAM VERSION
Indicates the program version No. of the Power Supply’s screen display part.
(h) IS-800A/1400A PROGRAM VERSION
Indicates the program version No. of the Power Supply’s control part.
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)

IS-800A/1400A
4. How to Operate Screens
4-3
(3) SCHEDULE Screen
Up to 255 welding schedules can be set on the Power Supply.
In the SCHEDULE screen, there are Current and time setting screen and 
Pulsation and transformer screen.
Current and time setting screen
This screen is used to set the SCHEDULE No., length of weld time, welding
current, and so on.
The ms mode or CYC mode can be changed via WELD TIME (Refer to (9)(e))
on the MODE SELECT screen.
(Note) Unit, resolution, and setting range surrounded with frame change depending on the
settings of CTRL.
(a) SCHEDULE #
Select from #001 to #255 to set the SCHEDULE.
Normally select #001 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. The screen above is in ms setting. CYC can be
selected via the MODE SELECT screen. (See (9)(e).)
For each operation, see 8. Timing Chart.
Item Description Setting range
SQD
Squeeze delay time
Length of time added to SQZ; only
for the first weld after start signal in
repeat operation 0 to 9999 ms
0 to 999 CYC
SQZ
Squeeze time
Length of time until proper squeeze
is applied to workpiece
COOL1 and COOL2
Cooling time 1 and 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
0 to 2000 ms
0 to 999 CYC
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.)
0 or 10 to 9990 ms
0 to 99 CYC
(b)
(c)
(a)
(d)
(e)
(f)
(g)

IS-800A/1400A
4. How to Operate Screens
4-4
* OFF/Off time
･Count and step value are increased each time OFF/Off time is over.
･RE-WELD does not work simultaneously with OFF/Off time. When OFF/Off
time is set, RE-WELD becomes invalid.
･START SIGNAL MODE has limitations. When OFF/Off time is set,
MAINTAINED of START SIGNAL MODE does not work. It works as
LATCHED.
(c) WELD (1, 2, 3)
Set the length of time to allow welding current to flow. As units of time, ms and
CYC may be selected. Either unit can be selected via the MODE SELECT screen.
(See (9)(e).)
UP (1, 2, 3)
Set the upslope time (to increase the welding current gradually).
DOWN (1, 2, 3)
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 UF set value to the
HEAT set value and decreases from the HEAT set value to the UF set
value, but E-10 (Schedule setting error) will occur when the Power Supply
starts with the following setting.
Unsettable waveform profile
The upslope time is set for the subsequent stage, and the HEAT
setting of D and the UF HEAT setting of E are different.
E
F
CBA
D
D
A
F
CB
E
When the downslope time is set for the previous stage in the
multi-stage welding.
The downslope time is set for the previous stage, and the DL HEAT
setting of E and the HEAT setting of F are different.
A: WELD1 time or WELD2 time
B: UP2 time or UP3 time
C: WELD2 time or WELD3 time
D: WELD1 HEAT or WELD2 HEAT
E: UF2 HEAT or UF3 HEAT
F: WELD2 HEAT or WELD3 HEAT

IS-800A/1400A
4. How to Operate Screens
4-5
A
D
B
F
C
E
F
D
CA B
E
When the slope times are set for the previous and subsequent stages
in the multi-stage welding.
The downslope time is set for the previous stage, the upslope time is
set for the subsequent stage, and the DL HEAT setting of F and the UF
HEAT setting of G are different.
A B C
E
H
G
F
D A
E
F
H
DB C
G
(Note) Set 1 (ms/CYC) 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.
(Note) Upslope / Downslope waveform when INTERVAL (downtime) is set to 0.
E-10 (Schedule setting error) will occur when the Power Supply starts
with the following setting.
A: WELD1 time or WELD2 time
B: DOWN1 time or DOWN2 time
C: WELD2 time or WELD3 time
D: WELD1 HEAT or WELD2 HEAT
E: DL1 HEAT or DL2 HEAT
F: WELD2 HEAT or WELD3 HEAT
A: WELD1 time or WELD2 time
B: DOWN1 time or DOWN2 time
C: UP2 time or UP3 time
D: WELD2 time or WELD3 time
E: WELD1 HEAT or WELD2 HEAT
F: DL1 HEAT or DL2 HEAT
G: UF2 HEAT or UF3 HEAT
H: WELD2 HEAT or WELD3 HEAT