: The position detector is an incremental pulse coder (or the absolute pulse coder is being used as an incremental one). 1 : The position detector is an absolute pulse coder. Why This Matters
New motors will have a different encoder alignment relative to the keyway or coupling.
The control is trying to communicate with the encoder type specified in Parameter 1860, but the data packet returning from the encoder is corrupted, missing, or mismatched. Check the feedback cable connections.
Because parameter 1860 acts as a memory register for the physical position of the encoder, it will update automatically during specific service actions:
Press the softkey or enter 1 and press INPUT . The CNC will emit a harmless PWE alarm indicating parameters are unlocked. Step 2: Clear the Old Home Position
“It’s just a parameter,” Gary said, for the fourth time. “You’re the expert.”
| Phase | Speed Control | Parameter | Description | |-------|---------------|-----------|-------------| | | Rapid traverse (G00) | 1420, 1421, 1422, 1423 | Axis moves toward the deceleration dog at rapid speed. | | 2. Low-Speed Search | Parameter 1860 | PRM 1860 | After hitting the dog, axis decelerates to this speed to find the 1-grid signal (encoder marker pulse). | | 3. Final Stop | N/A (control logic) | N/A | Axis stops at exact reference position (grid point). |
Parameter 1860 specifically applies this logic to or sub-spindle/main-spindle alignments depending on your exact FANUC model and option configuration. It ensures that Axis B (the slave or synchronized axis) mirrors or aligns perfectly with Axis A (the master axis) relative to the machine's physical geometry. Why Adjust Parameter 1860?
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: The position detector is an incremental pulse coder (or the absolute pulse coder is being used as an incremental one). 1 : The position detector is an absolute pulse coder. Why This Matters
New motors will have a different encoder alignment relative to the keyway or coupling.
The control is trying to communicate with the encoder type specified in Parameter 1860, but the data packet returning from the encoder is corrupted, missing, or mismatched. Check the feedback cable connections. fanuc parameter 1860
Because parameter 1860 acts as a memory register for the physical position of the encoder, it will update automatically during specific service actions:
Press the softkey or enter 1 and press INPUT . The CNC will emit a harmless PWE alarm indicating parameters are unlocked. Step 2: Clear the Old Home Position : The position detector is an incremental pulse
“It’s just a parameter,” Gary said, for the fourth time. “You’re the expert.”
| Phase | Speed Control | Parameter | Description | |-------|---------------|-----------|-------------| | | Rapid traverse (G00) | 1420, 1421, 1422, 1423 | Axis moves toward the deceleration dog at rapid speed. | | 2. Low-Speed Search | Parameter 1860 | PRM 1860 | After hitting the dog, axis decelerates to this speed to find the 1-grid signal (encoder marker pulse). | | 3. Final Stop | N/A (control logic) | N/A | Axis stops at exact reference position (grid point). | The control is trying to communicate with the
Parameter 1860 specifically applies this logic to or sub-spindle/main-spindle alignments depending on your exact FANUC model and option configuration. It ensures that Axis B (the slave or synchronized axis) mirrors or aligns perfectly with Axis A (the master axis) relative to the machine's physical geometry. Why Adjust Parameter 1860?
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.