Amada MM-140A User manual

AA04OM1202878-08
OPERATION MANUAL
Original instructions
PULSETIG WELD CHECKER
MM-140A

MM-140A
Contents
1
Thank you for your purchase of our PULSETIG Weld Checker MM-140A.
Please read this manual carefully to ensure correct use. Keep the manual handy after
reading for future reference.
Contents
1. Special Precautions ........................................................................................................ 1-1
(1) Safety Precautions....................................................................................................... 1-1
(2) Precautions for Handling ............................................................................................. 1-4
(3) On Disposal ................................................................................................................. 1-4
(4) Warning Labels............................................................................................................ 1-4
2. Features ........................................................................................................................... 2-1
3. Packaging ........................................................................................................................ 3-1
(1) Accessories ................................................................................................................. 3-1
(2) Options ........................................................................................................................ 3-1
(3) Recommended Parts ................................................................................................... 3-3
4. Name and Functions of Each Section ............................................................................. 4-1
(1) Front ............................................................................................................................ 4-1
(2) Rear............................................................................................................................. 4-4
5. Interface ........................................................................................................................... 5-1
(1) Connection Diagram of the External I/O Signals ......................................................... 5-1
(2) Description of the External I/O Signals........................................................................ 5-3
(3) Connection of Input Signals....................................................................................... 5-10
a. Connection with Device Having a Contact Input (when Using Internal Power Supply) ......................5-10
b. Connection with Device Featuring NPN Open Collector Output (when Using Internal Power Supply).. 5-11
c. Connection with Device Featuring PNP Current Output (when Using External Power Supply) .........5-12
d. Connection with Device Featuring NPN Open Collector Output (when Using External Power Supply) 5-13
6. Installation and Connections ......................................................................................... 6-1
(1) Installing the MM-140A ................................................................................................ 6-1
(2) Preparations for Measurement – Connection between the MM-140A and Sensors.... 6-1
a. Connecting the Current Sensor (Option)..............................................................................................6-1
b. Connecting the Torch Voltage Detection Cable (Option) .....................................................................6-1
c. Connecting the Shield Gas Flow Sensor Cable (Option) .....................................................................6-2
(3) Connecting the Communication Connector ................................................................. 6-5
7. Basic Operation............................................................................................................... 7-1
(1) Startup ......................................................................................................................... 7-1
(2) Basic Usage of the MM-140A ...................................................................................... 7-2
a. CHECK (check) Mode..........................................................................................................................7-2
b. COUNT (count) Mode ..........................................................................................................................7-2
c. SCH (schedule) Mode..........................................................................................................................7-2
d. PRG (program) Mode ..........................................................................................................................7-3
e. Simply Selecting the External Input (Shield Gas Flow Rate) Display...................................................7-5
f. Simply Selecting the Weld Time Display..............................................................................................7-5
(3) Preparation for Measurement...................................................................................... 7-7
a. Selecting the Schedule Number to Set ................................................................................................7-7
b. Selecting Peak or Effective Value of Welding Current .........................................................................7-8
c. Selecting Torch Voltage or Modulation Frequency ..............................................................................7-9
d. Selecting Peak or Effective Value of Torch Voltage.............................................................................7-9

MM-140A
Contents
2
e. Selecting Weld Time or External Input (Shield Gas Flow Rate).........................................................7-10
f. Setting the Measurement Start Time (FIRST) and the Measurement End Time (LAST) ...................7-10
(4) Upper/Lower Limit Judgment Function ...................................................................... 7-12
a. Setting the Upper and Lower Limits of the Welding Current ..............................................................7-12
b. Setting the Upper and Lower Limits of the Torch Voltage..................................................................7-13
c. Setting the Upper and Lower Limits of the Weld Time .......................................................................7-14
d. Setting the Upper and Lower Limits of the External Input (Shield Gas Flow Rate) ............................7-15
e. Setting the Upper and Lower Limits of the Modulation Frequency.....................................................7-16
(5) Settings in the Program Mode ................................................................................... 7-18
a. Setting the Preset Counter (COUNT).................................................................................................7-18
b. Status Setting (STATUS) ...................................................................................................................7-18
c. Changing the Various Levels .............................................................................................................7-19
d. Communication Setting......................................................................................................................7-27
e. System Setting...................................................................................................................................7-30
f. External Input (Shield Gas Flow Rate) Measurement End Extension Time .......................................7-34
g. Password Setting...............................................................................................................................7-34
(6) Checking Settings and Initializing.............................................................................. 7-36
a. Checking the Setting and the Previously Measured Value ................................................................7-36
b. Initializing the Schedule Setting .........................................................................................................7-38
8. Data Communication ...................................................................................................... 8-1
(1) Data Transfer............................................................................................................... 8-1
(2) Configuration ............................................................................................................... 8-1
a. Ethernet ...............................................................................................................................................8-1
(3) Communication Protocol (Single-Directional Communication) .................................... 8-5
a. Monitor Data ........................................................................................................................................8-5
b. Error Data ............................................................................................................................................8-7
(4) Communication Protocol (Bi-Directional Communication)........................................... 8-8
a. Reading the Monitor Data ....................................................................................................................8-8
b. Reading and Writing the Level Setting Data and System Setting Data..............................................8-11
c. Reading and Writing the Schedule Setting Data................................................................................8-14
d. Reading the Communication Setting Data .........................................................................................8-17
9. Fault Code List ................................................................................................................ 9-1
10. Specifications ................................................................................................................ 10-1
(1) Measurement Specification ....................................................................................... 10-1
(2) Specification of the MM-140A.................................................................................... 10-3
11. Calibration...................................................................................................................... 11-1
12. Outline Drawing............................................................................................................. 12-1
(1) Body .......................................................................................................................... 12-1
(2) Drawings for Mounting Bracket.................................................................................. 12-2
a. Front and Rear Mounting ...................................................................................................................12-2
b. Right and Left Mounting.....................................................................................................................12-2
(3) Current Sensor (Common to RS-C300-3000/RS-C050-3000) ............................ 12-3
Index ..........................................................................................................................................1
EU Declaration of Conformity

MM-140A
1. Special Precautions
1-1
1. Special Precautions
(1) Safety Precautions
Before using the weld tester, please read through the Safety Precautions carefully to
ensure proper use.
The precautions listed here are designed to ensure safe use and proactively prevent
risks and damage to the user and other people. All precautions are critical for safety.
Please read them all.
The hazard signs have the following meanings:
Mishandling may cause imminent risk of death or serious
injury.
Mishandling may cause risk of death or serious injury.
Mishandling may cause risk of injury and physical
damage.
These signs represent “DON’Ts.” They warn of actions not
covered by the product warranty” in the previous
document.
These signs represent “DOs" which must be observed by
the product user.
A sign within a triangular border indicates that a hazard
(danger, warning or caution) is present.
DANGER
WARNING
CAUTION

MM-140A
1. Special Precautions
1-2
NEVER ATTEMPT to disassemble, repair or modify the instrument.
Do not touch any parts inside the instrument. Failure to observe this may result
in an electric shock or fire.
For battery replacement, inspection or repair, please contact your dealer or us.
NEVER burn, destroy, cut, crush or chemically decompose the
instrument.
This product incorporates parts containing gallium arsenide (GaAs).
DO NOT place your hands between the electrodes.
When welding, be extremely careful not to get your fingers or hand caught in the
electrodes.
During or immediately after welding, DO NOT touch the welded areas or
electrode.
The welded areas of the workpiece, the electrodes and the welding machine’s
arm are extremely hot. To prevent burns, do not touch these areas.
Ground the instrument.
If the instrument is not grounded, you may receive an electric shock in the event
of malfunction or current leak. Be sure to perform grounding work.
ALWAYS use the specified power supply.
Failure to use the power supply specified in the Operation Manual may result in
a fire or electric shock.
Use the specified cables and connect them securely.
Failure to do so or improper connection may result in a fire or electric shock.
Keep the power and connection cables free of damage.
Do not walk on, twist or tug the cables.
Damaged cable may result in an electric shock, short circuit, or fire.
For repair or replacement, contact your dealer or us.
In the event of an anomaly, STOP the operation.
Continuing the operation with anomalies such as a generation of fumes, a
burning odor, strange noise, or overheating unattended may result in an electric
shock or fire. In the event of the above or other anomaly, immediately contact
your dealer or us.
STAY AWAY from the instrument if you have a pace maker.
If you have a pacemaker, do not approach a welding machine in operation or
the immediate area unless your doctor has given consent.
Welding machines generate a magnetic field which interferes with the operation
of a pacemaker.
ALWAYS wear appropriate work clothing.
Wear protective gear such as gloves, a long-sleeved top and leather apron.
Surface flash and expulsion can cause burns if it contacts the skin.
DANGER
WARNING

MM-140A
1. Special Precautions
1-3
ALWAYS wear protective goggles.
Directly looking at surface flash and expulsion during welding can temporary
impair vision. Welding spatter can cause permanent eye damage, including
blindness.
DO NOT splash water.
Electrical parts may cause an electric shock or short circuit if they become wet.
Keep the area clear of flammable objects.
Surface flash and expulsion generated during welding may ignite flammable
objects, resulting in a fire. If work involves use of flammable items, place a
non-flammable cover over such items.
DO NOT cover the instrument with a blanket or cloth.
During operation, do not cover the instrument with a blanket or cloth. This may
lead to the instrument overheating and catching fire.
Install the instrument 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 instrument.
Failure to observe this precaution may lead to malfunction.
Wipe off dust from the power plug and securely insert it all the way.
Dust or improper insertion may lead to the plug heat up and catch fire.
Hold the power plug when removing or inserting it.
Removing the power plug by pulling on the cable may damage the power cable,
resulting in an electric shock or causing the cable to catch fire.
If you do not use the instrument for extended periods, remove the power
plug from the outlet.
Failure to do so may deteriorate the insulation, resulting in an electric shock,
current leakage or fire.
Provide fire extinguishers.
Provide fire extinguishers at the welding site as a precautionary measure.
Perform maintenance and inspection on a regular basis.
Perform maintenance and inspection regularly and repair damaged areas and
parts before using the instrument.
Wear soundproof earmuffs.
Loud noise may impair hearing.
CAUTION

MM-140A
1. Special Precautions
1-4
(2) Precautions for Handling
■Avoid the following locations when installing the instrument:
Humid (above 90%) locations
Extremely hot (above 45C) or cold (below 0C) locations
Near a high noise source
Location where chemical substances, etc. are handled
Location where condensation occurs
Dusty location
Location exposed to direct sunlight
Location that is inclined, insecure, unstable, or weak
■Check the voltage and power frequency before installation.
■Keep the exterior clean with a soft cloth or cloth lightly dampened with water.
For stains, clean them off using a diluted neutral detergent or alcohol. Do not
use thinner or benzene as they may cause discoloration or deformation.
■To prevent malfunction, do not allow any foreign objects such as screws or
coins to enter the instrument.
■Operate the instrument according to the procedure described in the Operation
Manual.
■Operate the switches and buttons with care. Rough operation or the use of a
tool or pen tip may result in damage or malfunction.
(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
A warning label is pasted on the instrument for safe use. The pasting place and
meaning of each label are as shown below.
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
Pasting place: Top cover
Meaning: Caution for
grounding wire
connection
Pasting place: Top cover
Meaning: Danger of
electric shock

MM-140A
2. Features
2-1
2. Features
The PULSETIG Weld Checker MM-140A is a measuring instrument for monitoring the TIG
welding.
The MM-140A can measure and display the welding current, torch voltage*1, weld time,
and shield gas flow rate of our pulsed TIG welding power supply MAWA series. The
MM-140A enables quality control in pulsed TIG welding.
The MM-140A has the following features.
•Compact body
The outline is 187 x 70 x 250 (mm) and the weight is 2.3 kg. The MM-140A can be
installed anywhere and can be carried easily.
•Supports a long-time welding current
A long-time pulsed TIG welding can be measured with 9999 ms of the maximum
measurement time.
•Supports torch voltage*1 measurement
The welding current and the torch voltage can be measured simultaneously.
•Supports shield gas flow rate measurement
The shield gas flow rate can be measured with the shield gas flow sensor.
•Measuring modulation frequency
You can check if the MM-140A operates with the modulation frequency set in the
welding power supply.
•Managing measurement data with PC or server
You can transmit measurement data to your PC or server through the Ethernet
communication.
•Upper/Lower limit judgment function provided
When the measured value is outside the preset value, the trouble signal is output. This
function is provided for quality control purpose.
•Applicable to various power supplies
The MM-140A can be used with 100–240 V AC power supply. Also, the MM-140A can
be operated with 24 V DC, allowing a variety of application.
•Easy operation with a button
All operations are done with a switch. Operation is easy since there is not buttons and
switches on the panel.
•Easy-to-see LED display
Bright and clear 7-segment LED is employed. You can see characters on the display
clearly from any angle.
*1: The torch voltage is available only to the touch-start model.

MM-140A
3. Packaging
3-1
3. Packaging
(1) Accessories
The model numbers of accessories are subject to change without notice. Depending on
the part to be changed, the mounting screw shape may change and a necessary tool
may be different. For the latest parts information, contact a nearest sales office.
Item Model No. Q’ty
I/O connection
connector
Case DX-50-CV1 1
Connector*1 (50 pins, male) DX30A-50P(50) 1
Ferrite core NFT-12 1
Operation manual AS1202880 1
*1: The location of Pin 1 of the I/O connection connector DX30A-50P(50) is as
shown below. For pressure contact, a dedicated jig is required. The I/O
connection cable with connector is optionally available.
(2) Options
Item Model No.
Current sensor (3 m)
RS-C300-3000, current sensor for TIG
(300 A)
RS-C050-3000, current sensor for TIG
(50 A)
Relay cable (200 mm) SK-1202967
Power cable*1 (3 m)
KP-35 KS-16A SVT#18x3 B-TYPE
(3-pin plug, for 100-120 V AC)
KP244 VCTF3*1.25 KS16D 3M gray
(Japan, for 200 V AC)
CEE3P-W-1.8
(Round plug, for 200-240 V AC)
3-pin/2-pin conversion adapter for power
cable KPR-24(SB)-B (for 100-120 V AC)
Torch voltage detection cable (3 m) SK-1202980
Shield gas flow sensor cable (3 m) SK-1202981
LAN cable (3 m) KB-FL6A-03BL
Bracket
(for fixing on table. 2 pieces required.) Z-02414-001

MM-140A
3. Packaging
3-2
Item Model No.
I/O connection cable with connector*2
SK-1210081 (5 m)
SK-1210082 (10 m)
SK-1210083 (20 m)
*1: Exclusively for the MM-140A. Do not use for other devices.
*2: The identification diagram of the I/O connection cable with connector’s core is
shown below.
Example) Pin 49, White (■■■Black)
White cable 3 black points
1
2
3
4
5
7
6
11
10
9
12
30
13
20
18
16
15
22
23
25
26
27
28
33
32
31
35
34
37
39
40
43
44
49
50
EXT.24V
EXT.COM
SCH1
SCH2
SCH4
SCH8
SC H16
(Not used)
COUNTUP.RST
COM
NO.CURR
NO.CURR24V
NG.RESET
COM
SIG.COM
TRG.SIG
CURR.SIG
SIG.COM
NO.CURR24V
EXT.24V
EXT.24V
EXT.24V
COM
COM
COM
COM
NG24COM
NG24OUT
NG.L
NG-NG.H
NG.COM
GOOD
GOOD.COM
COUTUP
COUNTUP.COM
FG
21
VOLT.SIG
45
NO CURR
46
NO CURR
47
48
READY
READY
8
EXTERNAL_IN
41
RANGE OVER
42
RANGE OVER
17
COM
19
EXTERNAL SIG
Orange (■Black)
Orange (■Red)
Orange (■■■■Black)
Orange (■■■■Red)
Gray (■■■■Black)
Gray (■■■■Red)
Yellow (■■■■Red)
White (■■■■Black)
Gray (■Red)
Gray (■Black)
Pink (■■■■Black)
White (■Black)
Yellow (■Red)
Yellow (■Black)
Pink (■Red)
Pink (■Black)
Orange (■■Red)
Orange (■■Black)
Gray (■■Black)
White (■Red)
White (■■Black)
Yellow (■■Black)
Yellow (■■Red)
White (■■Red)
Gray (■■Red)
Orange (■■■■■■■■■■■Black)
Pink (■■Black)
Pink (■■Red)
Gray (■■■■■■■■■■■Black)
Orange (■■■Black)
Orange (■■■Red)
Gray (■■■Black)
Gray (■■■Red)
White (■■■Black)
White (■■■Red)
Cable shield
Pink (■■■■Red)
Yellow (■■■Black)
Pink (■■■Black)
Yellow (■■■Red)
Pink (■■■Red)
Yellow (■■■■Black)
White (■■■■■■■■■■■Black)
White (■■■■■■■■■■■Red)
Yellow (■■■■■■■■■■■Black)
Pink (■■■■■■■■■■■Black)