
A-78640E
Sheet
Title
Draw
No.
04 Feb.08.’03 Part of (4) is added or modified. Addition of 2.16.5
03 Jul.02.’02 A. Fukumoto Part of (3) is added or modified. T.Endo
02 May.13.’02 A. Fukumoto Addition of Tool Radius control for 5-axis machining etc T.Endo
Ed. Date Design Description
Date Jan.25.’02 Desig. A.Fukumoto Apprv. T.Endo
FANUC Series 16i /18i -TB
Specifications of AI High-Precision Contour Control /
I Nano High-Precision Contour control
130/190
2.24.3 Limitations
• Linear type positioning
When Optimum torque acceleration/deceleration is enabled, linear type
positioning for rapid traverse is selected automatically in AI HPCC / AI NANO
HPCC mode even if the parameter LRP, bit 1 of parameter No. 1401, is set to 0
(nonlinear type is selected).
• Modes and conditions
Optimum torque acceleration/deceleration is enabled when AI HPCC / AI NANO
HPCC mode is active and the conditions under which AI HPCC / AI NANO
HPCC are satisfied.
• Target axes
Optimum torque acceleration/deceleration can be performed on axes which are
selected by parameter No.7510.
• Acceleration pattern
In the same direction move, it is necessary that the acceleration during
deceleration is set 1/3 of one during acceleration at least.
Also, the acceleration pattern data must be set so that the time required for the
deceleration from the rapid traverse rate to a speed of 0 does not exceed 4000
(msec). This does not include the acceleration change time of bell-shaped
acceleration/deceleration.
If the deceleration acceleration ratio or the time required for the deceleration to
a speed of 0 exceeds the above range, P/S alarm (P/S5455) will be issued at the
time rapid traverse is executed.
A slight error will occur between the specified acceleration and the actual
acceleration.
• Tool center point control
Optimum torque acceleration/deceleration is disabled in tool center point control
mode (except startup and cancellation). If this occurs, the
acceleration/deceleration for rapid traverse follows the reference acceleration.