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: In many Series 0i-D or 0i-F controls, this parameter is used to enable the graphical simulation or monitoring window.
When the fan at the back of the CNC cabinet or the servo amplifier stops functioning (usually due to dirt buildup or motor failure), the controller detects this and displays: OH0701 (on newer systems) How it works:
If a replacement fan is not immediately available and you must complete a critical job, setting this to 1 allows you to bypass the hard stop caused by the 701 alarm. Safety Requirement: If you bypass this alarm, you
: Contact the Luxembourg Headquarters at +352 72 77 77 1.
Are you currently troubleshooting a specific , or are you looking to optimize high-speed machining settings? PARAMETER MANUAL
Would you like a step-by-step procedure to change 8901 on your specific Fanuc model (e.g., 0i-D, 31i-B5) or a sample PMC ladder modification to remove the deceleration dog input?
The system will throw a harmless PWE Alive alarm (Alarm 100); disregard this for now. Step 2: Navigate to and Edit Parameter 8901 Press the function key.
This is the specific bit used for fan alarm suppression.
The ideal look-ahead block count depends on your machine's hardware capability and the type of work it performs. There is no universal "magic number," but the following guidelines have been established in real production environments:
If you mean replacing 8901:
Parameter 8901 (sometimes listed as bit parameters 8901.0 through 8901.7) controls the and the Dogless Reference Return behavior on many Fanuc CNC controls, particularly Series 0i, 16i/18i/21i, 30i, and 31i.
Disregard the standard P/S 100 alarm indicating that parameter editing is actively unlocked. Step 2: Locate and Edit Parameter 8901 Press the hard key on your control interface.
Assuming a typical linear axis with a 1,000,000 pulse/rev encoder (nanoscale resolution):
While modifying parameter 8901 makes the machine "better" in the short term by eliminating the alarm, it is not a permanent solution. The fan exists for a crucial reason.
The servo amplifier generates significant heat during normal operation. A faulty fan will lead to Alarm 8, 9, or A (high current/short to ground) due to overheating.
: In many Series 0i-D or 0i-F controls, this parameter is used to enable the graphical simulation or monitoring window.
When the fan at the back of the CNC cabinet or the servo amplifier stops functioning (usually due to dirt buildup or motor failure), the controller detects this and displays: OH0701 (on newer systems) How it works:
If a replacement fan is not immediately available and you must complete a critical job, setting this to 1 allows you to bypass the hard stop caused by the 701 alarm. Safety Requirement: If you bypass this alarm, you
: Contact the Luxembourg Headquarters at +352 72 77 77 1. fanuc parameter 8901 better
Are you currently troubleshooting a specific , or are you looking to optimize high-speed machining settings? PARAMETER MANUAL
Would you like a step-by-step procedure to change 8901 on your specific Fanuc model (e.g., 0i-D, 31i-B5) or a sample PMC ladder modification to remove the deceleration dog input?
The system will throw a harmless PWE Alive alarm (Alarm 100); disregard this for now. Step 2: Navigate to and Edit Parameter 8901 Press the function key. : In many Series 0i-D or 0i-F controls,
This is the specific bit used for fan alarm suppression.
The ideal look-ahead block count depends on your machine's hardware capability and the type of work it performs. There is no universal "magic number," but the following guidelines have been established in real production environments:
If you mean replacing 8901:
Parameter 8901 (sometimes listed as bit parameters 8901.0 through 8901.7) controls the and the Dogless Reference Return behavior on many Fanuc CNC controls, particularly Series 0i, 16i/18i/21i, 30i, and 31i.
Disregard the standard P/S 100 alarm indicating that parameter editing is actively unlocked. Step 2: Locate and Edit Parameter 8901 Press the hard key on your control interface.
Assuming a typical linear axis with a 1,000,000 pulse/rev encoder (nanoscale resolution): Are you currently troubleshooting a specific , or
While modifying parameter 8901 makes the machine "better" in the short term by eliminating the alarm, it is not a permanent solution. The fan exists for a crucial reason.
The servo amplifier generates significant heat during normal operation. A faulty fan will lead to Alarm 8, 9, or A (high current/short to ground) due to overheating.