Miyachi IPB-5000A User manual

INVERTER-TYPE WELDING POWER SUPPLY
IPB-5000A
OPERATION MANUAL
Thank you for purchasing the Miyachi Inverter-type Welding Power Supply IPB-5000A.
・For correct use, read this operation manual carefully.
・After reading, save it in a proper place where you can easily access to.
J03M0756E-05
POWERSTART
IPB-5000A
CURSOR
WELD MENU RESET
ENTER
＋－
WELDING POWER SUPPLY

IPB-5000A
1
Table of Contents
1. Special Precautions··································································································· 1-1
(1) Safety Precautions································································································· 1-1
(2) Precautions for Handling ······················································································· 1-4
(3) Warning Labels for Safety ····················································································· 1-5
(4) Function Difference Depending on Model ····························································· 1-5
2. Features ······················································································································ 2-1
3. Packaging ··················································································································· 3-1
4. Name and Functions of Each Section ····································································· 4-1
(1) Front Panel ············································································································ 4-1
(2) Rear Panel ············································································································· 4-3
5. Installation and Connection······················································································ 5-1
(1) Installation·············································································································· 5-1
(2) Connection············································································································· 5-2
6. Description of Display Screens················································································ 6-1
(1) Operation Flow······································································································· 6-1
(2) MENU Screen ········································································································ 6-2
(3) SCHEDULE Screen ······························································································· 6-2
(4) MONITOR Screen·································································································· 6-6
(5) COMPARATOR Screen························································································· 6-8
(6) ENVELOPE Screen ······························································································· 6-9
(7) PRECHECK Screen······························································································· 6-13
(8) CONTROL Screen ································································································· 6-14
(9) STATUS Screen ···································································································· 6-16
①STATUS (1/2) Screen ······················································································· 6-16
②STATUS (2/2) Screen ······················································································· 6-18
③ERROR SETTING Screen ················································································ 6-20
④MISC Screen ····································································································· 6-20
7. Basic Operation ········································································································· 7-1
8. External Interface······································································································· 8-1
(1) Connection Diagram for External Input/Output Signals········································· 8-1
①When contacts on PLC are used as input signal ·············································· 8-1
②When NPN transistor (sink type) on PLC is used as input signal····················· 8-2
③When PNP transistor (source type) on PLC is used as input signal················· 8-3
④When solenoid valves are activated by the use of an external power supply ·· 8-4
⑤When solenoid valves are activated by the use of an internal power supply ··· 8-4
(2) External Input/Output Signals ················································································ 8-4
(3) Schedule No. and Schedule Select Terminals ······················································ 8-8
9. Time Chart ················································································································ 9-1
(1) Fundamental Sequence························································································· 9-1
(2) Determination of Weld Schedule ··········································································· 9-3
(3) Behavior of START SIG. HOLD············································································· 9-4
(4) Behavior of END SIG. TIME ·················································································· 9-5

IPB-5000A
2
Table of Contents (Continued)
(5) Behavior of SOL1 and SOL2 ················································································· 9-6
(6) “Error” or “Caution” in PRECHECK········································································ 9-7
(7) At Occurrence of “Error” or “Caution” ···································································· 9-8
(8) Behavior in TRANS SCAN MODE········································································· 9-9
①OFF Setting ······································································································· 9-9
②ON Setting········································································································· 9-9
③1-5 Setting ········································································································· 9-10
④1-2 Setting ········································································································· 9-11
⑤1-3 Setting ········································································································· 9-12
⑥1-4 Setting ········································································································· 9-12
(9) Movement of Displacement Sensor······································································· 9-13
10. External Communication Function ······································································ 10-1
(1) Introduction ············································································································ 10-1
(2) Data Transmission ································································································· 10-1
(3) Configuration·········································································································· 10-2
①RS-485 ·············································································································· 10-2
②RS-232C············································································································ 10-2
(4) Protocol ·················································································································· 10-3
①Single-directional Communication Mode ·························································· 10-3
②Bi-directional Communication Mode ································································· 10-4
(5) Data Code Table···································································································· 10-8
①Order Table of Schedule Data ·········································································· 10-8
②Order Table of Monitor Data (Most Recent Monitor Value) ······························ 10-9
③Specified Code ·································································································· 10-10
11. Specifications ········································································································ 11-1
(1) Specifications········································································································· 11-1
(2) Optional Items (Separately Sold)··········································································· 11-5
①Input Cables PK-01855-□□□········································································· 11-5
②Output Cables PK-01856-□□□ ······································································ 11-5
③[SENS] Cables SK-05741 ················································································· 11-6
④Start Cables A-03081························································································ 11-6
⑤Displacement Sensors ······················································································ 11-6
⑥Displacement Sensor Conversion Cables ························································ 11-6
12. Error Codes ············································································································ 12-1
13. Outline Drawing ····································································································· 13-1
(1) IPB-5000A-00-00/01/03/04···················································································· 13-1
(2) IPB-5000A-00-02/05······························································································ 13-2
14. Schedule Data Table······························································································ 14-1
(1) Weld SCHEDULE Setting······················································································ 14-1
(2) PRECHECK Setting······························································································· 14-8
(3) COMPARATOR Setting ························································································· 14-11
(4) CONTROL Setting ································································································· 14-18
(4) STATUS Setting····································································································· 14-25
EC Declaration of Conformity

IPB-5000A
1. Special Precautions
1-1
Denotes operations and practices that
may result in personal injury or damage
to the equipment if not correctly followed.
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 safe operation.
• The meaning of the words and
symbols is as follows.
Do not touch the inside of the Power Supply unnecessarily.
Since very high voltages are charged 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.
If any part needs to be checked or repaired, contact Miyachi Corp. or your
distributor for help.
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 o
r
loss of life if not correctly followed.
WARNING
!
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
!
C
A
UTION
！

IPB-5000A
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 the equipment.
If the Power Supply is not grounded, you may get an electric shock when
there is trouble, or when electricity leaks.
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 Miyachi Corp. or your
distributor.
Do not use any damaged power cable, connecting cable and plug.
That can cause electric shock, short circuits and fire.
If any part needs to be repaired or replaced, consult Miyachi Corp. 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 Miyachi Corp. 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 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
!
!
!
!
!
!

IPB-5000A
1. Special Precautions
1-3
Apply the specified source voltage.
Application of a voltage out of the specified range can cause fire and electric
shock.
Do not splash water on the equipment.
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 equipment on firm and level surface.
If the equipment falls over or drops from an uneven surface, injury may
result.
Do not sit on or do not put things on it.
Sitting on it, or putting things on it may cause malfunction.
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 this equipment with a blanket, cloth, etc.
If such a cover is used, it may be heated and burn.
Do not use this Power Supply for purposes other than welding.
Use of this equipment 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.
Make sure there is a fire extinguisher in or near the welding shop in case of
fire.
Regularly inspect and maintain the equipment.
Regular inspect and maintenance is essential to safe operation of the
equipment. If you see any damage, make necessary before starting the
operation.
CAUTION
!
!
!
!
!
!
!
!

IPB-5000A
1. Special Precautions
1-4
(2) Precautions for Handling
 Install the Power Supply on a firm and level surface. If it is used inclined or on its
side, it may have a malfunction.
Also, provide 10
cm clearance to the intake and exhaust for improving the effect of
heat release (Refer to 5. (1)Installation).
 Do not install this Power Supply in the following places:
▪ Where there is considerably damp (humidity is 90% or higher).
▪ Where the ambient temperature is above 40℃or below 5℃.
▪ Where there is nearby high-frequency noise source.
▪ Where the Power Supply may be exposed to chemicals.
▪ Where moisture may be condensed on the surface of the Power Supply.
▪ Where there is considerable dirt.
▪ Where the Power Supply may be subjected to vibration or impact.
 If the outside of the Power Supply is stained, wipe it with a dry cloth or a
moistened cloth. If it is badly stained, use diluted neutral detergent or alcohol to
clean it. Do not use paint thinner, benzene, etc., which can discolor or deform the
parts.
 Do not put screws, coins, etc., in the Power Supply, as they may cause a
malfunction.
 Operate the 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. they may be broken.
 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.

IPB-5000A
1. Special Precautions
1-5
(3) Warning Labels for Safety
The following warning labels are attached to the Power Supply for safe operation.
The location of labels and the meaning of the symbols are as follows:
Location: the side surface of a plastic cover inside IPB-5000A
Meaning: Danger
Location: Output terminal cover inside IPB-5000A
Meaning: Danger of Electrical Shock
(4) Function Difference Depending on Model
The function of “only for Model with Displacement Sensor” described in the
operation manual is effective for the models equipped with Displacement Sensor
as follows.
Other functions are effective for the Models with Sensor as same as the standard
models.
IPB-5000A-00-
Model 00/01/02 03/04/05
Standard Model
(without Sensor) Yes
Model
with Sensor Yes
DANGER
WHEN INSPECTING INTERNAL, MAKE SURE
TO TURN OFF MAIN CIRCUIT BREAKER
AND WAIT FOR AT LEAST 5 MINUTES
NOT TO GET AN ELECTRIC SHOCK.

IPB-5000A
2. Features
2-1
2. Features

Has a welding current monitoring function for the judgment of weld quality
 The selection from four control methods of Constant-current control, Constant-voltage
control, constant-current/constant-voltage combination control and constant-power
control is applicable for realizing the stable weld quality

Has an interrupting function (INTERRUPT)to interrupt fusing current by externally
inputting the displacement of an electrode, etc. for stable fusing
 Weld current can be stopped when the displacement reaches the set value, because
the displacement change between electrodes generated by fusion penetration etc. is
measured (only for the model with a displacement sensor).

As an inverter is used, the power factor is high and the power condition is stabilized

Because of the menu selection system, setting of various items can easily be done

With four protective functions, the operator can work at ease
・Overcurrent detecting function
・No-current / no-voltage detecting function
・Thermostat fault detecting function
・Self diagnostics
The Miyachi IPB-5000A is an inverter-type power supply designed for spot
welding and fusing.
It is easy to move and install, as it is small in size and compact. In addition, the monitor
function is provided which makes possible the judgment of defective or non-defective
welding.

IPB-5000A
3. Packaging
3-1
3. Packaging
Shipping Kit LIst
Verify that contents of the container agree with the kit list.
If you see any damage, please contact Miyachi Corp.
Packaged Kit Quantity
IPB-5000A 1
Operation Manual 1
Cable Clamp (Large)
for fixing I/O Cable 2
Cable Clamp (Small)
for fixing I/O Cable 3

IPB-5000A
4. Name and Functions of Each Section
4-1
4. Name and Functions of Each Section
(1) Front Panel
①Display Screen
Displays the information such as setting of a weld schedule, monitored values of
weld current, etc.
②POWER Lamp
Lights up when the power switch is turned on to supply the power to IPB-5000A
and IPB-5000A works normally.
③START Lamp
Lights up while the start signal is input to make the sequence start.
④WELD Key with WELD Lamp
Use WELD Key if you want to make the sequence start without flowing the weld
current.
When WELD Key is pressed to extinguish WELD Lamp, then the weld current
does not flow.
①
④
⑥
⑦
⑧
⑨
⑩
⑤
POWER START
IPB-5000A
CURSOR
WELD MENU RESET
ENTER
＋－
WELDING POWER SUPPLY
③
②
Front Panel

IPB-5000A
4. Name and Functions of Each Section
4-2
⑤CURSOR Key
Moves the cursor upward/downward or to the right/left on Display Screen.
⑥MENU Key
Press MENU Key to display MENU Screen.
⑦RESET Key
Press RESET Key to reset the display of a trouble after removing the cause of the
trouble when the trouble display is shown on Display Screen.
⑧ENTER Key
Use ENTER Key to put in a set value or selected item.
Move the cursor to each item to be changed and press ENTER Key item by item
to complete the change.
⑨+ Key
Press + Key to increase the value of a changed item.
⑩－Key
Press －Key to decrease the value of a changed item.

IPB-5000A
4. Name and Functions of Each Section
4-3
(2) Rear Panel
①Connecting Terminal Strip for External Input/Output Signal
Used for inputting the schedule signals, outputting trouble signals, etc.
The size of screws is M3.5 for connection.
② Breaker for Welding Power Input
Used to accept three-phase power supply for welding.
The size of screws is M5 for connection.
③ Lever for Welding Power Input Breaker
Pulling up the Lever supplies power; pushing down disconnects power supply.
④ Welding Transformer I/O Signal Connector
Used for connecting [SENS]cable of welding transformer manufactured by
Miyachi Corp.
⑤ Terminal Block for Welding Power Output
Used for connecting to the input of welding transformer.
The size of screws is M6 for connection.
①
②
③
④
⑤
Input Breaker Cover
【Terminal Cover Installed】
Rear Panel
Input/Output Terminal Cover
Output Terminal Cover
【Terminal Cover Removed】
I/O
RS232C/RS485
11 37353331292725232119171513975
383634323028262422201816141210864
STOP
1ST
2ND
COM
SCH 1
SCH 4
SCH 8
SCH16
SCH32
SCH 2
SCH64
INT.24V
EXT.COM
WELD ON/OFF
ERROR RESET
COM
COM
GOOD
NG
END
CAUTION
COUNT UP
READY
OUT COM
OUT COM
SOL 1
SOL 2
SOL COM
PRG PROTECT
39
PARITY
(WE1 STOP)
COM
W.INTERRUPT
P-00281-001
COUNT RESET
CONTROL SIG
2
31
(OPTION1)
(OPTION2)
SOL POWER
(OPTION4)
(OPTION5)
(OPTION3)
POWER OUT
P-1463
VU
I/O
RS232C/RS485
L1 L2 L3 PE
⑥⑦

IPB-5000A
4. Name and Functions of Each Section
4-4
⑥ Displacement Sensor Connector
Used for connecting a displacement sensor (only for the model with displacement
sensor).
⑦ Communication Connector
Used for communicating with Personal Computer (abbreviated as PC from now)
through RS-232C or RS-485.
Before coupling with the connector, decide which mode is to be selected,
RS-232C or RS-485 and confirm the communication mode. RS-232C is set at the
factory shipment.
Mismatching of the communication mode setting at IPB-5000A with the mode at
PC results in malfunction.

IPB-5000A
5. Installation and Connection
5-1
5. Installation and Connection
(1) Installation
When planning for the installation, allow at least the figured clearance on each
side from the wall, as referred to the figures below, for improving the effect of
heat release.
Allow at least 10cm or more from the end of the Wiring Outlet projected at the
Output Terminal Cover in the rear potion of IPB-5000A.
As IPB-5000A should be air-cooled, do not install it in a closed area.
[Front View] [Top View]
10cm or more
Outlet
POWERSTART
IPB-5000A
CURSOR
WELD MENU RESET
ENTER
＋－
WELDING POWER SUPPLY
10cm or more 10cm or more
Air Inlet
Air Inlet
10cm or more
Air Inlet
Air Inlet
Outlet
(Front Portion)
(Rear Portion)
Wiring Outlet
Output Terminal
Cover

IPB-5000A
5. Installation and Connection
5-2
(2) Connection
Numerals of (1) to (8) in the above figure represent the order of connection
procedures in the following pages.
* 1: All items are separately sold except IPB-5000A.
* 2: The Voltage Detecting Cable is used only for Constant Voltage Control,
Constant Current/Constant Voltage Combination Control and Constant Power
Control.
* 3: Communication Cable is used only for connecting Personal Computer (PC).
* 4: Displacement Sensor is used only for the model equipped with the Sensor.
To Ground (G)
Earth
Leakage
Breaker
Input
Cable
Welding Head
IPB
-
5000A
POWERSTART
IPB-5000A
CURSOR
WELD MENU RESET
ENTER
＋－
WELDING POWER SUPPLY
11 37353331292725232119171513975
383634323028262422201816141210864
STOP
1ST
2ND
COM
SCH 1
SCH 4
SCH 8
SCH16
SCH32
SCH 2
SCH64
INT.24V
EXT.COM
WELD ON/OFF
ERROR RESET
COM
COM
GOOD
NG
END
CAUTION
COUNT UP
READY
OUT COM
OUT COM
SOL 1
SOL 2
SOL COM
PRG PROTECT
39
PARITY
(WE1 STOP)
COM
W.INTERRUPT
P-00281 -001
COUNT RESET
CONTROL SIG
2
31
(OPTION1)
(OPTION2)
SOL POWER
(OPTION4)
(OPTION5)
(OPTION3)
POWER OUT
P-1463
VU
I/O
SENS
SERIAL
NO.
JAPAN
MIYACHI TECH NOS CORP.
MADE
IN
A1
1234
ｲﾝﾊﾞｰﾀ出力電圧 ３０ ０Ｖ時 FOR INVERTER OUTPUT 300V
ｲﾝﾊﾞｰﾀ出力電圧 6０ ０Ｖ時 FOR INVERTER OUTPUT 600V
POWER SUPPLY VOLTAGEPOWER SUPPLY VOLTAGE
ＡＣ３８０Ｖ～ＡＣ４ ８０ＶＡＣ２００Ｖ～ＡＣ２４０Ｖ
L1 L2 L3 PE
Front Panel
Rear Panel
Voltage
Detecting
Cable
*2
Secondary
Cable
Welding
Transformer
Input Terminal Block
Output
Cable
(Refer to Caution
below)
[SENS] Cable
External I/O
Signal Cable
Match the designaton
of cable with terminal
for connection
*1
Start
Cable
(1)
(6)
(5)
(4)
(3)
(2)
(7)
(8)
Communication
Cable *3
Displacement
Sensor *4
To PC

IPB-5000A
5. Installation and Connection
5-3
Be sure to use SK-05741 [SENS] cable when connecting IPB-5000
A
w
ith Welding Transformer ITD-360A6 or ITB-780A6 (See 11.(2)③for
[SENS] cable).
Be sure to ground the equipment.
Be sure to install the Terminal Cover after wiring.
Be sure to install an earth leakage breaker of 40A rated current
or more.
(1) Connecting Input Terminal Block of transformer.
Connect the Output Cable from the Input Terminal Block of the welding
transformer to the Terminal block for Welding Power Output (See 4.(2)⑤)
on the rear panel of IPB-5000A.
The ways of connecting the Input Terminal Block of Welding Transformer are
different from each other, depending on the input voltage of IPB-5000A.
Connect in such way as ①below in the case of 200V System (200 to 240V)
and as ②in 400V System (380 to 480V).
If the connection is done as the figure ①below in the case of
400V System, it may damage IPB-5000A or Welding Transformer.
①IPB-5000A-00-00 for use ②IPB-5000A-00-01 for use
(200V System Power Supply) (400V System Power Supply)
CAUTION
!
WARNIN
G
!
SENS
SERIAL
NO.
JAPAN
MIYACHI TECHNOS CORP.
MADE
IN
A1
SHORT
短絡
1234 5
5
SHORT
短絡
SHORT
短絡
INPUT
入力
INPUT
入力
INPUT
入力
INPUT
入力
Welding Transformer
Input Terminal Block
Output Cable
Short Circuit Piece
SENS
SERIAL
NO.
JAPAN
MIYACHI TECHNOS CORP.
MADE
IN
A1
SHORT
短絡
1234 5
5
SHORT
短絡
SHOR T
短絡
INPUT
入力
INPUT
入力
INPUT
入力
INPUT
入力
Welding Transformer
Input Terminal Block
Output Cable
Short Circuit Piece
CAUTION
!

IPB-5000A
5. Installation and Connection
5-4
(2) Connecting [SENS] Cable to transformer.
Connect [SENS] Cable from Welding Transformer I/O Signal Connector
(See 4.(2)④) in the rear panel of IPB-5000A to Welding Transformer.
(3) Connecting Start Cable
Connect Start Cable from Terminal Strip for External Input/Output Signal
(See 4.(2)①) in the rear panel of IPB-5000A to Terminal Strip for Start Switch
in Welding Head.
(4) Connecting Voltage Detecting Cable
Connect the Voltage Detecting Cable in the case of using Constant Voltage
Control, Constant Current/Constant Voltage Combination Control and
Constant Power Control.
(5) Connecting a power supply
Connect Input Cable from Breaker for Welding Power Input (See 4.(2)②) in
the rear panel of IPB-5000A to Earth Leakage Breaker.
Connect the earth cable to PE Terminal.
(6) Connecting a necessary External I/O Signal Cable to Terminal Strip for
External Input/Output Signal (See 4.(2)①)
Prepare cables for the connection, referring to 8.External Interface.

IPB-5000A
5. Installation and Connection
5-5
(7) Connecting Communication Cable (only for PC connection)
The communication with PC can be performed by the use of RS-232C and
RS-485.
Before coupling with the connector, decide which mode is to be selected, RS-
232C or RS-485 and confirm the communication mode (See 6.(9)②(c)COMM
MODE for the selection of RS-232C and RS-485).
Mismatching of the communication mode setting at IPB-5000A with the mode
at PC results in malfunction.
RS-232C is set at the factory shipment.
See 10. External Communication Function for details.
①Connection of RS-232C
②Connection of RS-485
1
RXD 2
TXD 3
4
GND 5
6
7
8
9
1CD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9
Host Computer
D-sub 9 Pin
Male
IPB-5000A
RS-232C
Pin No.
D-sub 9 Pin
Female
Pin No.
Host Computer IPB-5000A
RS+
RS-
Terminal Resistance
100 Ω
1
2
3
4
5
RS+ 6 RS+
7
8
RS- 9 RS-
Host Computer
RS-232C/RS-485
Conversion Adapter
D-sub 9 Pin
Male
IPB-5000A
Pin No.
IPB-5000A IPB-5000A

IPB-5000A
5. Installation and Connection
5-6
(8) Connecting Displacement Sensor (only for model with Sensor)
Install firmly Displacement Sensor not so as to rattle in reference to the figure
below.
When using the function of detecting a workpiece, adjust the installation
position of Sensor for the shaft of sensor so as to retract halfway in the
condition before the electrode is forced (left-side figure above)
ATTENTION
As the figure (A) below, be sure to keep Displacement Sensor perpendicular
to Displacement Detecting Plate.
If Displacement Sensor is slantingly installed like (B) or (C), the life of the
sensor becomes shorter.
θ
[Normal] ［Abnormal］
θ
(A) (C)(B)
［Abnormal］
Displacement
Sensor
Displacement
Detecting
Plate
If Sensor is pressed beyond the range of measurement, it results in
malfunction.
The measured value of displacement
Is minus (+) or plus (-).
In the direction of retraction of the
movable part of Displacement
Sensor, the counted value is plus (+).
On the other hand, the value is minus
(-) in the extension.
Displacement
Sensor
4
3
2
1
0
4
3
2
1
0
Adjust sensor so that
shaft of sensor
retracts halfway
when electrode is
at bottom.
(Before Forcing)
Displacement
Detecting
Plate
(
After Forcin
g
)
Retracting: +Count
Extending: -Count
Displacement
Detecting Plate
Shaft of
Sensor
Displacement
Sensor