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Vyacheslav Rybakov
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The Benefits of Using the Fanuc OT 900 Parameter List for CNC Programming


Fanuc OT 900 Parameter List: A Complete Guide for CNC Operators




If you are a CNC operator who works with a Fanuc OT control, you might want to know more about the Fanuc OT 900 parameter list. The Fanuc OT 900 parameter list is a set of parameters that can enable or disable various functions and options on your CNC machine. By changing the Fanuc OT 900 parameter list, you can customize your CNC machine to suit your needs and preferences.




Fanuc ot 900 parameter list



However, changing the Fanuc OT 900 parameter list is not something that you should do lightly. Some parameters can affect the safety and performance of your CNC machine, and some parameters require additional hardware or software to work properly. Therefore, you should always consult the manual and the manufacturer before changing any parameters, and make sure that you have a backup of the original parameter list in case something goes wrong.


What are the Fanuc OT 900 Parameters?




The Fanuc OT 900 parameters are a set of parameters that are numbered from 900 to 999. They are also called option parameters because they control various optional functions and features on your CNC machine. Some of the functions and features that the Fanuc OT 900 parameters can control are:


  • Canned cycle



  • G10 program input of offset



  • Mechanical handle feed



  • Manual one pulse generator control



  • S4/S5 digit control



  • Inch/metric conversion



  • Cycle time and parts count display



  • Background editing



  • Graphic display



  • Custom macro



  • Tool life management



  • Tool offset memory expansion



  • Programmable data input (PDI)



  • High-speed skip function



  • Spindle orientation



  • Rigid tapping



  • Servo motor speed feedback



  • And more...



The Fanuc OT 900 parameters are divided into two groups: group A and group B. Group A parameters are common to all machines, while group B parameters are specific to each machine type and model. You can find the list of group A parameters in the Fanuc O-T parameter manual, and the list of group B parameters in the manual of your machine manufacturer.


How to Access and Modify the Fanuc OT 900 Parameter List?




To access and modify the Fanuc OT 900 parameter list, you need to follow these steps:


  • Turn on the CNC machine and press the SYSTEM key on the panel.



  • Select the PARAMETER screen by pressing the soft key under it.



  • Press the PAGE DOWN key until you see the parameter number 900.



  • To change a parameter, press the EDIT key and enter the new value using the numeric keys.



  • To change a bit of a parameter, press the CURSOR key to move to the desired bit and press the INPUT key to toggle it on or off.



  • To save your changes, press the END key and then press RESET.



  • To exit the parameter mode, press SYSTEM again.



Note: Before changing any parameters, make sure that you have set the PWE (parameter write enable) parameter to 1. This parameter is located in parameter number 0000 bit 0. To set it to 1, follow steps 1-4 above, then press INPUT. To set it back to 0, press INPUT again.


How to Use the Fanuc OT 900 Parameter List?




The Fanuc OT 900 parameter list can be used to enable or disable various functions and options on your CNC machine. However, not all parameters are applicable to all machines, and some parameters may require additional hardware or software to work properly. Therefore, you should always consult the manual and the manufacturer before using any parameters, and make sure that you have a backup of the original parameter list in case something goes wrong.


Some of the functions and options that you can use the Fanuc OT 900 parameter list for are:


  • Canned cycle: You can use parameter 900 bit 0 to enable or disable the canned cycle function. This function allows you to use predefined cycles for common machining operations such as drilling, tapping, boring, etc. You can also use parameters 901 to 909 to define your own custom cycles.



  • G10 program input of offset: You can use parameter 900 bit 1 to enable or disable the G10 program input of offset function. This function allows you to input or modify the offset values using a G10 code in your program. You can also use parameters 910 to 919 to define the format and range of the offset values.



  • Mechanical handle feed: You can use parameter 900 bit 2 to enable or disable the mechanical handle feed function. This function allows you to control the feed rate by turning a handle on the panel. You can also use parameters 920 to 929 to define the feed rate per handle rotation and the maximum feed rate.



  • Manual one pulse generator control: You can use parameter 900 bit 3 to enable or disable the manual one pulse generator control function. This function allows you to control the axis movement by turning a knob on the panel. You can also use parameters 930 to 939 to define the movement per pulse and the maximum speed.



  • S4/S5 digit control: You can use parameter 900 bit 4 to enable or disable the S4/S5 digit control function. This function allows you to specify the spindle speed with four or five digits instead of three digits. You can also use parameters 940 to 949 to define the spindle speed range and resolution.



  • Inch/metric conversion: You can use parameter 900 bit 5 to enable or disable the inch/metric conversion function. This function allows you to switch between inch and metric units by pressing a key on the panel. You can also use parameters 950 to 959 to define the conversion factors and units.



  • Cycle time and parts count display: You can use parameter 900 bit 6 to enable or disable the cycle time and parts count display function. This function allows you to display the cycle time and parts count on the screen during program execution. You can also use parameters 960 to 969 to define the display format and reset conditions.



  • Background editing: You can use parameter 900 bit 7 to enable or disable the background editing function. This function allows you to edit a program while another program is running in the background. You can also use parameters 970 to 979 to define the editing mode and conditions.



Some Examples of Using the Fanuc OT 900 Parameter List




To give you an idea of how the Fanuc OT 900 parameter list can be used to enable or disable various functions and options on your CNC machine, here are some examples of using the parameter list. You can see the parameter number, the bit number, the function or option, and the value to set.


Parameter


Bit


Function/Option


Value


900


0


Canned cycle


0: Disable1: Enable


900


1


G10 program input of offset


0: Disable1: Enable


900


2


Mechanical handle feed


0: Disable1: Enable


900


3


Manual one pulse generator control


0: Disable1: Enable


900


4


S4/S5 digit control


0: Disable1: Enable


900


5


Inch/metric conversion


0: Disable1: Enable


900


6


Cycle time and parts count display


0: Disable1: Enable


900


7


Background editing


0: Disable1: Enable


How to Troubleshoot and Solve the Fanuc OT 900 Parameter List Problems?




Sometimes, you may encounter some problems or errors when using the Fanuc OT 900 parameter list. For example, you may get an alarm code, a parameter error message, or a function that does not work as expected. Here are some tips on how to troubleshoot and solve the Fanuc OT 900 parameter list problems:


  • Check the manual and the manufacturer: The first thing you should do is to check the manual and the manufacturer for the correct parameter settings and requirements. Some parameters may be specific to your machine type and model, and some parameters may require additional hardware or software to work properly. You should also check if there are any updates or revisions for your parameter list.



  • Check the PWE parameter: The second thing you should do is to check the PWE (parameter write enable) parameter. This parameter is located in parameter number 0000 bit 0. You need to set this parameter to 1 before you can change any parameters, and set it back to 0 after you finish changing them. If you forget to set this parameter, you may get an alarm code or a parameter error message.



  • Check the backup battery: The third thing you should do is to check the backup battery. The backup battery is used to keep the parameter data in memory when the CNC machine is turned off. If the backup battery is low or dead, you may lose your parameter data or get incorrect parameter data. You should replace the backup battery regularly and make sure that you have a backup of your parameter list.



  • Check the input and output devices: The fourth thing you should do is to check the input and output devices. The input and output devices are used to transfer the parameter data between the CNC machine and an external device such as a PC or a tape reader. If there is a problem with the input and output devices, such as a loose connection, a faulty cable, or a wrong setting, you may get an alarm code or a parameter error message. You should check the input and output devices and make sure that they are working properly.



  • Check the program and operation: The fifth thing you should do is to check the program and operation. The program and operation are used to execute the functions and options that are controlled by the parameters. If there is a problem with the program and operation, such as a syntax error, a logic error, or a wrong setting, you may get an alarm code or a function that does not work as expected. You should check the program and operation and make sure that they are correct and compatible with your parameters.



Conclusion




The Fanuc OT 900 parameter list is a set of parameters that can enable or disable various functions and options on your CNC machine. By using the Fanuc OT 900 parameter list, you can customize your CNC machine to suit your needs and preferences. However, you should always consult the manual and the manufacturer before using any parameters, and make sure that you have a backup of the original parameter list in case something goes wrong. You should also check the PWE parameter, the backup battery, the input and output devices, and the program and operation to troubleshoot and solve any problems or errors that may occur when using the Fanuc OT 900 parameter list. The Fanuc OT 900 parameter list is a powerful tool that can help you optimize your CNC machine performance and functionality. b99f773239


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