Mitsubishi Info
PREFACE
MDS-A-V2-1005
A Indicates the first generation of the
amplifier. B denotes second generation, C denotes third,
etc. V2 Indicates that the amplifier is a dual amp.1005 Indicates current capacity of the dual amp. 10
amps and 5 amps, first and second axis respectively.
An important thing to know about the above designation is
that a first generation amplifier can be replaced with a second generation or a
second generation amp can be replaced by a third but not the other way around.
A second generation amplifier cannot be replaced with a first generation amp,
for example.
Virtually all built by Mitsubishi Heavy Industries
(horizontals, etc.) have scales on the axes for position feedback and the pulse
coder on the motor is used like a tach (velocity feedback). If the machine uses
a Fanuc 18 control you tell if it has axis scales by looking at parameter
1815.1 (OPT).
1815.1 = 1 Separate pulse coder is used.
= 0 Separate pulse coder is not used.
Quite often these machines will have an M-code that is used
to set a compensation factor based on temperature. This procedure varies from
machine to machine and is used to compensate for linear error due to
temperature.
The ladder on a Mitsubishi control can be forced. The
procedure is:
1. ...Share your problem. contact us.
2. ...Share your problem. contact us.
3. ...Share your problem. contact us.
5. ...Share your problem. contact us.
6. ...Share your problem. contact us.
7. ...Share your problem. contact us.
To reset the instruction to its natural state, follow the
same procedure But set the DATA for the opposite value. (Ex. 0 instead of 1) Cycling power will also reset the bit.
Once an instruction has been forced it will blink every few
seconds when viewed in the ladder.
To access the Ladder diagram:
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2. ...Share your problem. contact us.
3. ...Share your problem. contact us.
4. ...Share your problem. contact us.
5. ...Share your problem. contact us.
6. ...Share your problem. contact us.
7. ...Share your problem. contact us.
8. ...Share your problem. contact us.
Following this procedure will allow you to view the ladder
in it's active state.
There are two methods of searching for a program:
Method 1
1. Press the DIAGN IN/OUT button.
2. Press the MENU soft key.
3. Press the MENU soft key again.
4. Press the FILE soft key.
5. Key in the program number.
6. Press the INPUT button.
Method 2
1. Press the EDIT button.
2. Press the EDIT soft key.
3. Press the SEARCH soft key.
4. Key in the program number.
5. Press the INPUT button.
In MDI mode, a tool command must take the form of M6 T*; If
the tool number is entered before the M6, the M code will not be read. Instead,
the T code will be read and the magazine will rotate to the tool position
called.
The procedure for transferring everything you need to
restore the memory of a Mitsubishi control is:
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2. Press the DIAGN IN/OUT button.
3. At the #( ) prompt enter (99).
4. ...Share your problem. contact us.
5. Press the INPUT CALC button.
6. At the #( ) prompt enter (99).
7. ...Share your problem. contact us.
8. Press the INPUT CALC button.
9. At the #( ) prompt enter (99).
10. ...Share your problem. contact us.
11. Press the INPUT CALC button.
320 meters of memory equals 128000 bytes.
The procedure for erasing a program is:
1. Press the DIAGN IN/OUT button.
2. Press the ERASE soft key.
3. At the #( ) prompt enter (1).
4. At the DATA( ) prompt enter the desired program number.
5. Press the INPUT CALC button.
The control will display ERASE COMPLETE.
To search for a program press the DIAGN IN/OUT button then
the FILE soft key.
To delete all data from the screen (i.e. an MDI program):
1. Press the SHIFT button.
2. Press the C-B CAN button.
To activate the Screen Saver (clear the display):
1. Press the MONITOR button.
2. Press the POSI soft key.
3. Press the SHIFT button.
4. Press the C-B CAN button.
Press the MONITOR button to restore the display.
To zero the Position Display:
At the Position Display or Work Coordinate Display, press
the button that corresponds to the axis you want to zero (X,Y or Z), then press
the INPUT CALC button.
To zero the Position, Work, Program and Work Displays, press
the button that corresponds to the axis you want to zero (X,Y or Z), then press
the C-B CAN button. This is equivalent to G92X0Y0Z0. It will zero the G54
setting.
To execute an M, S or T function from any mode:
1. Go to the Position Display.
2. Press the button corresponding to the function you want
M,S or T).
(That function will become highlighted.)
3. Enter the numeric value you desire. (6 for tool change
etc.)
4. Press the INPUT CALC button.
The miscellaneous function executes.
FOR INSTRUCTIONS ON USING COMPUTER LINK SEE C:\MACHINE\TAK
When reading Mitsubishi Diagnostics remember that they are
numbered in Hex.
You will normally see:
X0000 00000000
X0008 00000000
X0010 00000000
etc.
They are read this way:
X0000 00000000 Diagnostic number 0 to 7 reading right to
left.
X0008 00000000 Diagnostic number 8 to F reading right to
left.
X0010 00000000 Diagnostic number 10 to 18 reading right to
left.
When the control powers up, data from the EEPROM is transferred
to the
Be careful when using the ERASE function, you can easily
lose all of your programs and offsets.
If you inadvertently lose the FIXED CYCLES, they are still
stored on EEPROM so all you need to do is change FIX_P to 1, go to INPUT screen
and enter # (4) and press INPUT. The FIXED CYCLES will be loaded from EEPROM.
The Power Supply, Spindle Amplifier, and all Servo Drives
are linked by a communication cable. This chain begins at the CPU card and ends
with a termination plug on one of the units, normally the Spindle Amp. If you
have an alarm that will not go away and you suspect a hardware problem with one
of the drives or the Spindle Amplifier, you can eliminate all of them by
removing the cable at the CPU and moving the terminator plug from it's location
to the port on the CPU where the cable was. Then go to the MACHINE BASE
PARAMETERS and change BASE SPEC PARAMETER (Noamp) to equal 1. This tells the NC
that there are no drives connected and so not to issue an alarm. If the alarm
in question goes away, there is likely a hardware problem.
Whenever troubleshooting alarms a useful tool is the
Register R69. Go to DIAGN, PLC-IF and type R69 into DEVICE ( ) and press INPUT.
Both lines of R0069 should always be all ones. R0069 11111111
11111111
If any of these are zero, the meaning is as follows:
R0069 76543210 HEX FF 0 equals emergency status 1 equals
normal
_ 1 1
1 1 1 1 1 1
|
| 1 1
1 1 1 1 1 1
| |
| | |
| | | |____________
Built-in PLC software error output; PLC is stopped.
| |
| | |
| | |______________ Serial input/output
interface card hardware error.
| |
| | |
| |_________________ PLC serial link preparation sequence
incomplete.
| |
| | |
|___________________ PLC serial link communication error.
| |
| | |______________________ Contact
I/O interface card output; X27 is 0.
| |
| |________________________ Board interface card
output.
| |
|___________________________ Built-in PLC software error output; Y29F is 1.
| |______________________________
Board contact I/O card output; X127 is 1.
|________________________________ Servo alarm.
This information can be found in the DIAGNOSIS section of
the INSTRUCTION MANUAL. One of particular note is X27 which if is a zero will
appear as:
R0069 11111111
11101111
X127 is normally tied to the machine's E-STOP. It is like
any other bit, you can go the Diagnostics and monitor it's status.
This has to do with the I/O string and is almost always
caused by a problem on the machine side. If this bit goes low you should start
looking for a broken connection between the I/O board and the machine.
Sometimes it may be caused by a defective I/O board. It may be helpful to work
with the machine electrical manual and the Diagnostics.
The failure of a Servo Amplifier may exhibit the following
symptoms:
When the amp is cool, the axis works fine but as the
temperature increases the axis motion has a noticeable jerk that gets worse and
worse until it eventually faults due to an over current condition. (S01 0003A).
Mitsubishi numbers it's I/O a little differently than Fanuc.
The X and Y addresses are numbered the same way, it works like this:
7 6 5
4 3 2
1 0 HEX
X0000 7
6 5 4 3
2 1 0
X0008
F E D
C B A
9 8
X0010 17
16 15 14 13
12 11 10
X0018
1F 1E 1D 1C 1B
1A 19 18
X0020
27 26 25 24
23 22 21 20
X0028
2F 2E 2D
2C 2B 2A 29
28 ETC......
The value of each word works this way:
It is broken into four bits each, 0-3 and 4-7. The highest
numeric value allowed is binary nine. Ten to fifteen are represented by
letters. What follows is all of the possible words with the accompanying Hex
value.
7 6
5 4 3 2
1 0 HEX
0 0
0 0 0 0
0 0 00
0 0
0 0 0 0 0
1 01
0 0
0 0 0 0 1
0 02
0 0 0 0
0 0 1 1
03
0 0 0 0
0 1 0
0 04
0 0
0 0 0 1
0 1 05
0 0 0 0
0 1 1 0
06
0 0
0 0 0
1 1
1 07
0 0 0 0
1 0 0 0
08
0 0 0 0
1 0 0
1 09
0 0
0 0 1
0 1 0
0A
0 0 0
0 1 0 1
1 0B
0 0 0
0 1 1
0 0 0C
0 0
0 0 1 1
0 1 0D
0 0 0
0 1 1 1
0 0E
0 0
0 0 1
1 1 1
0F
0 0 0
1 0 0 0
0 10
0 0
1 0 0 0 0
0 20
0 0 1
1 0 0 0 0
30
0 1 0
0 0 0
0 0 40
0 1
0 1 0
0 0 0 50
0 1 1
0 0 0 0 0
60
0 1 1
1 0 0
0 0 70
1 0 0
0 0 0
0 0 80
1 0 0
1 0 0 0 0
90
1 0 1
0 0 0 0
0 A0
1 0 1
1 0 0 0 0
B0
1 1
0 0 0
0 0 0
C0
1 1 0
1 0 0 0
0 D0
1 1 1
0 0 0 0 0
E0
1 1 1
1 0 0
0 0 F0
0 0
0 1 0 0
0 1 11
0 0 0
1 0 0 1 0
12
ETC...
Further examples:
1 1 1
1 0 0
0 1 F1
1 1
1 0 1
0 1 0 EA
1 1
1 1 1
1 1 1 FF
1 0
1 0 0
0 1 1 A3
0 0
1 1 1
0 1 0 3A
The cartridge that contains the ladder is a Flash ROM. In
the case of the QX812 it is a 256K Flash ROM, Mitsubishi P/N A52812.The part number for a used one
is A52812EX.
The ladder of Mitsubishi controls can be copied onto a blank
Flash ROM.
The procedure is:
1. Press the FO button.
2. Press FILE soft key.
3. Press 4RUN/SP soft key.
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5. Press the FO button.
6. Press the I/O ST soft key.
7. Press the 4ROMWRT soft key.
8. Press the SET soft key.
9. Enter 1 in ( ). Press the INPUT button.
10. Enter Y in ( ). Press the INPUT button.
11. Turn NC power off.
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13. ...Share your problem. contact us.
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15. Turn NC power off.
16. Set all switches (DIP) on CPU to off.
17. Turn NC power on.
If you need to change the Language displayed by the NC, the
parameter is Machine Base
Parameter 21 (lang). 1 = English.
For Left Hand Tapping use G74 and command M4 as compared to
G84 and M3 for normal tapping.
Alarm M01 0004 A means the 4th axis cannot move because the
interlock is activated. Normally, this means that the axis needs to be
unclamped by activating the appropriate M-Code. In the case of a Takumi, this
is either M10 or M11.
Normally, once the 4th axis is installed, Parameter #32
smcp_no must be 15. This is because this parameter identifies which slot the
Spindle Amplifier is in. The 1 refers to the rack, the 5 is the slot. The slot
number refers to where the amps is connected in the chain relative to each
other.
On a machine with three axes such as a Takumi, the cable configuration
will usually be: From the NC in to CN1A of the Dual Amp (Y and Z), out of CN1B,
in to CN1A of the X axis amplifier, out of CN1B, in to CN1A of the 4th axis
amplifier, out of CN1B, in to CN1A of the Spindle amplifier. CN1B of the
Spindle amplifier will have a plug to terminate the chain. With this
configuration, the proper setting of the mcp_no parameters is 11 for X, 12 for
Y, 13 for Z and 14 for the 4th.
In order to turn off the 4th axis when not installed or not
in use,
make Axis Parameter #4 = 1.
1. Press TOOL/PARAM button.
2. Press RIGHT CHAPTER button.
3. Press AXIS soft key.
4. # ( 4 ) AXIS ( A ) DATA ( 1 )
5. Press the INPUT button.
Depending on the machine builder, it may be necessary to
change a Latch Parameter or something in addition to the Axis parameter. In the
case of a Takumi machine you must also make Latch Parameter L12 = 0.
When you uninstall a 4th axis you must change Base Spec
Parameter #4 axtype to 1. It should look like:
#
axtype
sysnu
axname
1 axis
01 0
1
X
2
02 0
1
Y
3
03
0
1 Z
4
04 1
Once axtype is set for 1, the other two have no
significance. If this parameter is not set to 1 you will get the alarm:
Y06 mcp_no error 0001 4
This alarm can be misleading. It can cause you to chase
after mcp_no parameters.
If the control gives you trouble when you try to set these
parameters, i.e. E01 SETTING ERROR, try setting one of the fields at a time.
Anytime you either install or un-install a 4th axis, the
Spindle Parameters will get messed up and have to be re-entered. If the axis is
being removed it is easier because you can simply upload the original
parameters.
This can be done with the Y03 and Y06 alarms and the E-Stop in. But
if the axis is being installed obviously you can't do this. You will have to
enter them by hand. Before either installing or removing the 4th axis be sure
to write down the Spindle Parameters before you start.
When working with the 4th axis if you get Y03 Amp
Unequipped, the problem is usually SP #32. It must equal 14 if the 4th axis is
removed and 15 if the 4th axis is installed.
To access this parameter:
1. DIAGN button.
2. PLC-I/F soft key.
3. ...Share your problem. contact us.
4. INPUT button.
5. TOOL/PARAM button.
6. MENU soft key.
7. MENU soft key.
8. SPINDLE soft key.
If the problem is with a spindle parameter there should be
an S displayed.
In the above example, the 118 refers to a Spindle NC
Parameter. [SP-NC PARAM]
Normally, when the spindle parameters get messed up after
installing or removing the 4th axis you will get alarms like this. You can go
to 118 and correct it but when you power back up you will get the same alarm
but for parameter 95, etc.
When entering data in a Bit Select you have to enter the
first digit, cursor over, enter next digit, cursor over, etc.
If you initialize a controller, you have to turn Bit
Selects and Latch Parameters back on. Most of them will be set to zero by
initializing.
On many machines, initializing will change the Bit Select
which allows the control to display Machine Builder alarms.
For all of the procedures that follow one step may be left
out. This step is the MENU soft key. So if you have trouble, try using this
soft key. On some controls, the CPU board is QX611-1. On others it is
QX141-1.
If a Parameter has a PR beside it in the manual, the NC
power must be cycled for the change to become effective.
When using G84 (RIGID TAPPING) on a Mitsubishi control, it
is not necessary to give preparatory commands such as G98 (FEED PER
REVOLUTION).
If the NC skips blocks or characters while running a program
it usually means that the cable is too long. A distance no greater than 50 feet
is recommended Mitsubishi controls use a cartridge to store the ladder. The
cartridge is the one on the right. Inside the cartridge are four EEPROMS.
The last four numbers of a dual servo amplifier part number
refer to the axis capacity. For example, 2020 denotes equal amplifier capacity
for both of the controlled axes. 1005 denotes a capacity of 10 on the first
controlled axis and 05 on the second.
Some versions of Procomm do not work well when trying to DNC
with Mitsubishi controls. Typically, they will generate alarm P460, TAPE I/O
ERROR.
If a control's battery voltage drops and you have to
initialize the memory, a lot of times some of the Bit Selects will reset to
zero. One notable result of this is that when an alarm occurs, no alarm message
will be generated.
Machine builders include these values in with the paper copy
of the parameters.
If a soft key is stuck in when you press another soft key
the control will switch to the corresponding function but when you release the
button it will return to the function corresponding to the key that is stuck.
You can search a program form the EDIT page but this is
actually more for Background Edit. It will not give the desired result.
Also, to edit a program you search from the Edit page.
If a machine stops running or does something else wrong for
no obvious reason and does not display an alarm, press the DIAGN button to view
the Stop Code. For example, T03 Block Stop Error No. 0301 is a situation where
the machine goes in to Feed Hold because of Single Block.
If the magazine just keeps rotating when a tool is
commanded, it may be necessary to perform a Tool Table Reset (Control Parameter
#4). If the Tool Register information has been lost and re-entered it will
still be necessary to perform a reset.
If you install a 4th axis on a machine and the table rotates
less than it was commanded, you can change Parameter PC2 to make them agree. In
this case you would increase the value. Of course, if the table goes further
than commanded, try decreasing the parameter.
M addresses can be forced.
In the Ladder, alarms have the address designation F. They
can be searched using the -< >- and F1, F2 etc. Alarm AL1002 is F2 in the
Ladder, AL1003 is F3, etc.
If you are not sure what the instruction type is you are
looking for in the ladder, just type in the address. When you select an address
that does not agree with the instruction type you choose, the NC gets confused
and issues COMMAND CODE ERROR.
In the ladder when a Timer is displayed, its value (preset)
and current value (count) is displayed. This information is normally displayed
in the lower left hand corner and is shown in real time. You can observe the
timer counting down from the preset.
When trying to scroll through Mitsubishi ladder, controls
seem to differ. Pressing the SHIFT button then the + button works sometimes
while on another control you may have to press the + button first. Either way,
normally you can then get it to step through the ladder with each press of the
INPUT button.
Most Latch Parameters take effect as soon as they are
changed while others require that the NC power be cycled. Most of these
parameters can even be changed while a program is running.
This symbol, >< beside an axis position on the
position page means the axis is released. That is, it has been removed from use
by parameter and can not be used. As such, problems with the axis in terms of
hardware or parameter settings will be ignored by the control.
The symbol, #1, beside an axis position indicates that
reference point return has been performed and the axis has successfully reached
home position.
When working with the Ladder you may not want to follow the
Mitsubishi instructions. This is what I have found in working with the Ladder.
To search the ladder starting from the top (first
instruction)
1. Press the FO button.
2. Press the LADDER soft key.
3. Press the 2CIRCUIT soft key.
4. Press the 6MONIT soft key.
5. Press the +! button.
6. Press the INPUT button.
The ladder display goes to the top of the program. Each
press of the INPUT button steps down one page. If you have already entered the
ladder by searching for a specific instruction you can still step through the
ladder from that point.
1. Press the 6MONIT button.
2. Press the +! button.
3. Press the INPUT button.
Again, each time you press the INPUT button another page
will be displayed. You must press the 6MONIT soft key even though you have
already pressed it to monitor the previous instruction and it may still be
highlighted, you must press it again. To scroll back in the other direction,
enter -, INPUT.
Mitsubishi rungs are called steps whereas Fanuc calls them
nets. These can be searched by choosing the soft key 7l and entering the step
number. Step 251, for example, is called P251 but when you search just type 251
without the P.
When the NC is turned on, the PLC enters RUN mode. Even if
the PLC was turned off by inputting a 1 at PLC RUN/STOP before turning it off.
If you want the NC to power up with the PLC stopped, you must set selector
switch CS2 to position 1.
#1 beside an axis means that axis is at home.
To search for a specific character or instruction in a
program:
With the program on the screen, press the SEARCH soft key.
For example, if you are looking for tool two:
O ( ) N ( T2 ) - ( )
INPUT.
The SEARCH function will start it's search from where it is,
that is, if you are halfway through the program, it will start looking there.
If you are at the top of the program, it will start there...
To do Background Edit, just press the SEARCH soft key while
running a program, search out the program you want to edit, press INPUT, start
editing.
You can delete an entire page of a program at once. To do
this, press the SHIFT and CAN buttons at the same time. Everything on the left
side of the screen (one page) will disappear. This data will not truly be gone
until you press the INPUT button. If you press the LAST PAGE button before
pressing INPUT, the data will come back.
To do Automatic Tool Length Measurement:
1. Zero Return the Z axis.
2. Put the tool you want to measure in the spindle.
3. Press the TOOL/PARAM button.
4. Press the TLM soft key.
5. Move the tool down to the top of the part.
The Z distance from the ZRN position to the
part will be displayed in the Data field, i.e.
# ( ) DATA (14.7450)
6. Enter the number of the tool you are measuring,
i.e.
# (2) DATA (14.7450)
7. Press the INPUT button.
To set Work Coordinates:
1. Zero Return the axes.
2. Press the TOOL/PARAM button.
3. Press the WORK-M soft key.
You will see:
#41 G54 X 0.0000
42 Y 0.0000
43 Z 0.0000
Will also see G55, etc.
4. Move an axis to the desired coordinate. The position of
the axis moved relative to its reference position will be displayed in the data
field.
5. Enter the number corresponding to the axis you moved. For
example, #41 in the
case of G54 for the X axis.
6. Press the INPUT button. The value displayed in the data
field is stored in the work
coordinate.
Work Coordinates can also be set manually in the regular
work coordinate page. If you press the WORK soft key instead of the WORK-M soft
key as above, the work coordinates are displayed. Everything is the same as
above except that the position is not automatically displayed in the data
field. You have to type it in yourself but there is a portion of the screen
which shows how far a given axis is from it's reference point. This area is
labeled [TLM-P].
If a Mitsubishi controlled machine vibrates or makes a
growling noise try adjusting the following parameters in the order they are
listed.
1. VG1
2. IQC
3. IDG
In each case, decrease the setting by 50 until desired
result is achieved. If the problem persists:
Turn on STY FBC (Bit B). Turn on STY FBF 1 to 3 (Bit 8 to A)
in the following order:
FBF3 (Bit A)
FBF2 (Bit 9) FBF1 (Bit 8)
1
1
1
1
2 1
0
0
3 0
1
0
4 1
1
0
5 0
0
1
6 1
0
1
7 1
1
1
VG1 is a parameter for setting the response of the speed
loop. Decreasing this parameter decreases the response.
If the noise and/or vibration persist set a value in SP2
which is the cutting feed plus 100 rpm. Also make sure the value of VG1 is the
same as VG2. Next try decreasing the value of VG2 in steps of 10.
VG1 is also useful for correcting surface irregularities
during linear interpolation and making of circles. In this case, increase the
setting of VG1 by 20 until vibration or noise occurs in the axis. If noise or
vibration do occur before the irregularity goes away, the problem cannot be
corrected with VG1. Normally, this type of irregularity will result in a
rippling effect when the machine is doing linear interpolation such as a 45
degree movement. Also will show up as a ripple effect at the quadrants
(transition points) of a circle. Another condition that may be corrected by VG1
is dipping in or out of the tool at the quadrants of a circle. Again, change
the value of the parameter by 20 until desired result. Either increase or
decrease depending on whether the tool dips in or out at the transition points.
If VG1 does not help try:
1. Turn on STY SMC (Bit E).
2. Increase TGN by 20 until desired result is achieved.
Adjusting TGN can actually change the character of the axes
to the point that the machine can go from making circles that dip out to circles
that are dented ,that is, dipping in.
Whenever an axis overshoots, check the Droop amount on the
Servo Monitor Screen. If the Droop overshoots by the same amount, make
adjustments to the servo parameters. If the Droop does not overshoot, check the
mechanical parts of the axis. If the Droop overshoots in a semi-closed loop
system:
1. Increase VG1 by 50 until vibration or noise occurs while
the axis is stopped or during
rapid traverse.
2. Increase VIA by 200 each step.
The overshoot versus droop rule also applies for a closed
loop system but the method of adjustment is a little different. In the case of
a closed loop system where the Droop overshoots:
1. Increase VG1 by 50 until the axis vibrates or makes a
growling noise either at rest or in rapid traverse.
2. Increase VIA by 200 per step.
3. Decrease PGN by 5 per step.
4. Turn on SSF PID (Bit 0). Decrease VIL by 5 per step.
5. Turn on SSF PID (Bit 0), IDC (Bit 1) and IDF (Bit 2).
Decrease VIL
by 20 per step. If overshoot is removed
with step four but response
is reduced, try step five.
6. When a 1um or .1um scale is used, if a deviation within
1um or .1um
occurs in the stop state turn on
SSF CNG (Bit 11).
If Edit Lock A is turned on the Control Parameters will be
locked for editing.
The mode displays such as HANDLE, MDI, MEMORY, etc. are
written by the machine builder. If one or more of these are not displayed there
may be a problem with the PLC. In addition, these mode selections are turned on
by the Ladder program. As such they are output addresses and are controlled
just as any other output coil. If there is a problem with the display of one of
the modes you can look for the cause in the ladder. Some builders will use a
Latch Parameter on the rung for some of these modes to enable and disable the
modes. An example of this is on a YCI Max-3 Rebel with a Mitsubishi 335
control. On some of these machines YCI put Latch Parameter L20 on the rung for
the JOG and ZRN modes. If L20 is set to zero, NO MODE will be displayed when either
JOG or ZRN are selected by the rotary switch. If EOB is used to display
comments, L20 in the ladder will be shown as APHDLE.
The batteries in the MR-J2 amplifiers are Mitsubishi
ER17330V/3.6V, these are 3.7 volt lithium batteries.
If you have trouble getting a machine to tap correctly, it
will tap but the Z axis appears not to be in sync with the spindle, there are a
number of parameters used only for tapping and for synchronous tapping
specifically. Most of these are found in the Machine Base Parameters. Normally,
the best place to look first is in the Z axis parameters and the Spindle
parameters. Sometimes there will be other clues to help find the problem, for
example, if in addition to the tapping problem the Z axis has a rough or jerked
motion when it is moved by the MPG particularly in .100 increments you should
look very closely at the Z axis servo parameters.
Sometimes when you load parameters into a control the ball
screw pitch parameter (SV018 PIT) will change. When this happens the machine
will l indicate traveled distance other than the actual movement amount. Some
controls seem to revert to a value of 12 in this parameter. In the case of
Takumi machines, they use a 10mm ball screw so if this happens it will cause
the distance moved to be displayed as about 20 percent greater than the actual
movement amount.
The rotary selector switches on the amplifiers are used for
addressing by the control and should all be set to a different number. This
does not apply to the power supply. The power supply normally is set to only
one of two positions. Set to zero if the spindle uses a regenerative unit, set
to 1 if it does not.
Mitsubishi refers to the power supply as the CV unit.
Also, certain data is stored on EEPROM which can be
retrieved in case it is otherwise lost. That data is:
SYSTEM PARAMETER
Option Parameters
System Parameters
Fixed Cycles
The data that is not stored in EEPROM:
MACHINE PARAMETERS
Basic Specification Parameters
Axis Specification Parameters
Zero Point Return Parameters
Servo Parameters
Machine Compensation Parameters
Spindle Parameters
Macro List
Builders often use Bit Selects to enable add on devices such
as turrets. If you look at these in the ladder, they look like examine on and
examine off instructions and are normally labeled as BIT.
If a machine's control shuts down at the end of a program or
whenever M02 or M30 is executed, check the Auto Power Off function. On most
Mitsubishi controlled machines this normally accomplished with a push button switch
but it can also be done with a Latch Parameter.
The parts counter on most Mitsubishi controls is a function
of the Window. You must first open a window then look until you find a soft key
labeled P_COUNT.
If the NC will not allow you to change the state of a Bit
Select parameter, try placing the machine in E-Stop.
The correct way to run a program from memory is to SEARCH
the program number from the MONITOR page.
1. Select AUTO mode.
2. Press MONITOR button.
3. Press SEARCH soft key.
4. Input the program number.
5. Press the INPUT/CALC button.
6. Press CYCLE START.
Explanation of the control model number:
530MR
5=Control Series
3=Number of Controlled Axes (Basic)
0=Does not support Auto Programming
M=Machining Center
R=CRT S
