Parameter Number: 1829
Full Name: Servo Software Stroke Limit 2 (Positive Direction)
Control Type: FANUC Series 0i, 30i/31i/32i, 16i/18i/21i, and similar CNC models.
Parameter 1829 defines the second positive software overtravel limit for servo axes. It works in conjunction with Parameter 1828 (first positive limit) to provide a multi-stage safety boundary for axis movement. fanuc parameter 1829
Parameter 1829 is Axis-Specific, meaning there is a separate setting for each controlled axis (X, Y, Z, 4th, etc.). Parameter Number: 1829 Full Name: Servo Software Stroke
| Symptom | Probable Cause | Solution | |---------------------------------------|------------------------------------------|-----------| | Axis stops early, no alarm | 1829 set lower than actual physical limit | Increase 1829 value | | OT+ alarm immediately on power up | Machine position beyond 1829 due to reference shift | Reset reference position or temporarily increase 1829 | | Alarm when approaching limit 1 | 1828 > 1829 | Set 1828 < 1829 | | Parameter won't change | PWE = 0 or write-protect key ON | Enable PWE and check hardware key | Values are stored in detection units (e
Assume a linear axis with a travel range from -100.000 mm to +500.000 mm:
| Parameter | Setting (mm) | Purpose | |-----------|--------------|--------------------------------| | 1320 | -100000 | Negative software limit | | 1321 | +480000 | Positive soft limit 1 (warning)| | 1829 | +500000 | Positive soft limit 2 (final stop) |
Values are stored in detection units (e.g., 1 μm → multiply mm by 1000).