10
SERIES CONTROLLER
To monitor the Servo
Current on a 10 control you must measure the voltage at pins IR and IS on the
servo amplifier. RV1 on this drive is the Gain adjustment. RV3 is the Offset
adjustment. You normally will not adjust RV2. You monitor the Servo Error at
Diagnostic 3000 and adjust these pots to correct error. To make the best parts
especially circles these numbers should be the same. You should first adjust
the + and - values to make them equal one axis at a time. Then adjust to X
equal Z when doing linear interpolation. If the servo error is out of
adjustment you will normally see an ellipse from 45 degrees to 225 degrees or
from 275 to 135.
In order to get to the
Diagnostics you must:
1. Press the LEFT CHAPTER
button. (Beside the soft keys)
2. Press SERVICE.
3. Press DIAGNOS.
To search a program:
1. Select EDIT mode.
2. Press the Left Chapter
button.
3. Enter the program number
and press FW.SRCH
The Servo Parameters are
located in the 1600 to 1800 series.
On a Fanuc 10 control,
especially on a Mori-Seiki, the Page function is not immediately obvious. There
may be four arrow over buttons. If this is the case, you page up by pressing
the two upper cursor buttons at the same time. To page down you press the two
lower cursor buttons at the same time.
Also, on a 10 control the
PWE is Parameter 8000.0. Go to this parameter and make it 1. The alarm cannot
be cancelled with Reset/Cancel.
On a 10 control, the TGM
LED indicates a problem on the second axis of a dual amplifier. TGL indicates a
problem on the first axis. The TG of the TGL and TGM stands for Tacho
Generator. This alarm can also be
caused by a problem with
the pulse coder or it's cable. Also is possible for the motor to be shorted or
under excessive load, especially if the OV led comes on along with the TGM or
TGL.
If on a lathe, for example,
you remove the X axis pulse coder connection then turn the power on, the TGL
LED will come on. Likewise for the Z axis and TGL.
When working on a 10
control that has no display of the CRT, check the CRT/MDI power supply. This is
the bottom board of the CRT/MDI unit. There are three fuses on this board. If
the 3.2 amp fuse blows, you will not have any display. Another thing to check
is the OPT. INTERFACE board. A problem with the board or the fiber optic cables
or the cables reversed will cause no display. In this case, both the Red and
Green LEDs on the Main board will possibly be off. If CP21 is disconnected at
the time of NC power on, the Green LED will be on as normal but the NC will not
be ready and the main board will display A. Under normal conditions when the NC
is ready it should display 1. If you have a display of the CRT but it flickers,
the CRT/MDI (bottom board) is probably bad. This board is A02B-1001-0160. The
top board is A02B-1000-0800. COP1 of the Main board goes to COP3 of the CRT/MDI
unit. COP2 of the Main board goes to COP4 of the I/O board. The three fuses on
the CRT/MDI are 3.2 amp, .3 amp and .3 amp.
If the Input Unit of a 10
control alarms on power up (Red LED on the Input Unit):
1. Disconnect output
connectors (CP3, CP4, CP11, etc.) to determine if the problem is internal or
external to the
input
unit.
2. If the alarm does not
occur with all connectors removed but occurs if CP11 is connected alone,
begin
troubleshooting for a problem with the NC power supply or an output of that
power supply.
3. The NC power supply can
removed from the main board while leaving the cables still connected to it.
Try
powering
up like this. If the alarm goes away, you can assume the problem is with the
main board or one
of its
outputs. Re-install the power supply, remove all cables from the main board and
if the alarm does not
occur,
re-connect the cables one at a time until the alarm occurs, then pursue that
cable. If the alarm
occurred
with the power supply removed from the main board, begin eliminating
cables. If the alarm occurs
with
every cable removed except for CP11, the power supply is bad.
A problem in the circuit of
CP24 will cause a watchdog alarm. Both the red and the green LED will be on and
a C will be displayed. CP14 goes to CP51 of the I/O board.
Fanuc 10 controllers use
Keep Relays like an 18 controller.
When changing parameters,
they can be changed as individual bits by highlighting the bit. You have to use
the arrow keys to move the highlight around.
On a Fanuc 10 control, if
the control powers up with a screen which displays:
RAM TEST:END
ROM TEST:END
LOAD SYSTEM LABEL:END
CHECK SYSTEM LABEL:END
1. DUMP MEMORY
2. -
3. CLEAR FILE
4. SETTING
5. -
6. END IPL
?
This means the controller
is powering up in IPL mode, the RAM and ROM chips are probably okay but the
parameters have most likely been lost or scrambled. In this case, type 99 at
the prompt and press the INPUT key. You will be prompted AXIS? At this time,
enter the number of controlled axes on the machine and press the INPUT button.
You will then be prompted OPTION 01?, at this time you must enter the option
parameters 01-032. On the hard copy of parameters, these may be in the form of
an eight bit binary number but when manually entered must be in the form of
hexadecimal.
When the control is in IPL
mode a 0 will be displayed on the Master Board. A 1 is displayed during normal
operation.
To send and receive data:
1. Press the PROGRAM soft
key.
2. Press the + soft key
(right chapter).
The READ and PUNCH soft
keys are now shown. If not, look for a TEXT soft key and press it. This should
only be necessary id the DIR.MEM soft key has been pressed.
This control has Line
Driver and Line Receiver chips like a 0 control. These are soldered to the Main
Board. If Fanuc comes in and replaces them they will install sockets so that
they can be more easily replaced in the future.
There is a six pin
connector on the Input Unit. The connector is labeled CP2. Two of the pins are
R and S (220 volts). One pin is ground. Two pins go to a contact in the Power
Supply where it is labeled CP11. When the NC power on button is pressed, a
relay in the Power Supply is energized. If everything is OK with the power
supply, it stays energized. When the button is released, the power stays on.
On most 10M controls, the
incoming AC to the NC goes first to the Input Unit via the transformer
A80L-0001-0176 terminals A and B (200).These go to terminals R and S on the
Input Unit. This transformer has a number of taps on the primary. They are:
550
480
460
440
415
380
240
230
220
200
COM
Parameter 5220 is the
positive stroke limit for X,Y and Z.
5221 is the negative stroke
limit.
On a machine with a Fanuc
10M control, the RS-232 cable goes directly to connector CD1 on the top board
of the CRT/MDI unit (A20B-1000-0800). This connector is a 20 pin Honda female.
On most machines, they use nine of the pins on the control side, ten pins on
the machine (25 pin D female) side. Below is the pin information.
Controller side
Machine side ( PC side )
N/C
1 (PG Protective Ground)
9
2 (TD Transmit Data)
8
3 (RD Receive Data)
20
4 (RTS Request to
Send)
19
5 (CTS Clear to
Send)
18
6 (DSR Data Set
Ready)
17
7 (SG Signal
Ground)
16
8 (DCD Data
Carrier Detect)
5
20 (DTR Data Terminal Ready)
14
25 (BUSY Busy)
Pin 1 on the machine side
is connected to the machine ground.
Pin 7 on machine side and
pin 17 on Control side are connected to the shield as well as each other.
When data is being input to
a 10 or 15 control, it does not flash LSK.
To search a parameter on a
10, 11 or 12 control:
1. Press the SERVICE soft
key.
2. Press the PARAMETER soft
key.
3. Enter the desired
parameter number.
4. Press the INP-NO soft
key.
5. Press the INPUT button.
The two manuals necessary
to troubleshoot problems on a 10M control are the 10M Maintenance Manual
(B54815E) and the 10M Operation Appendix Manual (B54810E).
On controls with a Master
Board, particularly a 10M control, a lower case "c" indicates that
the board is not communicating with the other boards through the optical link.
In this case you will normally find that the green LED on the board (LK2) and
the red LED (LK1) will both be on. The status of the LEDs on the I/O board may
be green (DC4) is off and red (DC5) is on. As with many other problems on these
controls, a power supply could be the culprit. You must check the individual
voltages for the proper level. Remember that these voltages have a very tight
tolerance. Usually when this alarm state occurs, the outward indication is that
the display freezes where it is, pushing any button has no effect.
If the LED display on the
Main (Master) board displays what looks like a lower case "c", this
is a watchdog alarm. It has several causes but one notable cause is a problem
with one or more of the regulated voltages. These are +24v, +5v, 15v and -15v.
They can be monitored at test points TJ2, TJ3, TJ4 and TJ5 respectively. The
voltage can be monitored at TJ6. Use one of the GND test points instead of the
chassis ground for a reference. There is a slight difference in the readings.
There are several of these points and they are all common to one another. These
voltages must be within a very tight tolerance.
When a control is operating
normally, the LED will display "1". LK1 (RED) will be off. LK2 (GRN)
will be on. The green LED (DC4) on the I/O board should also be on when things
are normal. The red LED is DC5.
The part number of the
Power Supply is A16B-1219-0510-01. The part number of the Input Unit is
A14B-0076-B001.
The battery pack plugs into
the main board at CA6. Its pin outs are:
1 - + (White)
2 - -
(Black)
3 - Empty
4 - Shield
5 - Empty
6 - Empty
