It defines the amount of offset added to the velocity command immediately following a reversal in axis direction to compensate for mechanical backlash. Typical Setting Range: 20 to 600. Related Parameters:
| Parameter | Function | |-----------|----------| | 1850 | Grid shift amount (reference position fine offset) | | 1851 | Reference position coarse shift | | 1820 | Number of pulses per motor rotation / detection unit | | 1420 | Rapid traverse speed | | 1421 | FL speed (deceleration speed for ZRN) | | 3003 (bit 5) | ZRN direction selection |
| Encoder Type | Reference Pulses/Rev | Typical 1820 | Calculated 1860 | |--------------|----------------------|--------------|------------------| | αiA 4096 P/rev | 4096 | 4096 | 1 | | αiB 16384 P/rev | 16384 | 16384 | 1 | | αiCZ 10000 P/rev | 10000 | 10000 | 1 | | βiA 8000 P/rev | 8000 | 8000 | 1 | fanuc parameter 1860 full
Because you cannot simply "type in" a fix for Parameter 1860, resolving errors associated with it requires a structural reference position recovery routine using . Follow this methodology to cleanly update Parameter 1860 through the CNC interface: Step 1: Enable Parameter Writing (PWE) FANUC? M6 toolchange position. | Practical Machinist
When setting parameter 1860, users should consider factors such as: It defines the amount of offset added to
: The CNC automatically overwrites the data inside Parameter 1860 .
Use the directional cursor keys to highlight the specific axis you need to modify. Type the new value in detection units using the keypad. Press the softkey to save the change. Repeat for any other axes if necessary. Step 4: Clear the PWE Alarm Press the [OFFSET/SETTING] key again. Change PARAMETER WRITE (PWE) back from 1 to 0 . Press the [RESET] key to clear the flashing P/S 100 alarm. Follow this methodology to cleanly update Parameter 1860
: Used to set the absolute position detector (APC) and the zero position (APZ). Setting is what initializes the value in 1860. Parameter 1240–1243
What is the (e.g., 0i-MD, 18i-TB)? What specific alarm number are you seeing?