Mitsubishi Electric C70 Setup Manual page 315

MITSUBISHI CNC
Appendix 1 Explanation of Parameters
【#3116】 sp2_t2 Time constant in orientation/position loop reference position return (Gear:
01)
Set the acceleration/deceleration time constant to reach the spindle's limit speed (slimt), when
spindle rotates in orientation/position loop zero point return method (C axis, tapping) using gear 01
(Linear acceleration/deceleration pattern).
(Note 1) Set a value that is bigger than the values set by "#3101 sp_t1 to #3104 sp_t4".
(Note 2) If you set this parameter to "0" by SRAM clear, etc., the time constant is equivalent to "1ms".
---Setting range---
0 to 30000 (ms)
【#3117】 sp2_t3 Time constant in orientation/position loop reference position return (Gear:
10)
Set the acceleration/deceleration time constant to reach the spindle's limit speed (slimt), when
spindle rotates in orientation/position loop zero point return method (C axis, tapping) using gear 10
(Linear acceleration/deceleration pattern).
(Note 1) Set a value that is bigger than the values set by "#3101 sp_t1 to #3104 sp_t4".
(Note 2) If you set this parameter to "0" by SRAM clear, etc., the time constant is equivalent to "1ms".
---Setting range---
0 to 30000 (ms)
【#3118】 sp2_t4 Time constant in orientation/position loop reference position return (Gear:
11)
Set the acceleration/deceleration time constant to reach the spindle's limit speed (slimt), when
spindle rotates in orientation/position loop zero point return method (C axis, tapping) using gear 11
(Linear acceleration/deceleration pattern).
(Note 1) Set a value that is bigger than the values set by "#3101 sp_t1 to #3104 sp_t4".
(Note 2) If you set this parameter to "0" by SRAM clear, etc., the time constant is equivalent to "1ms".
---Setting range---
0 to 30000 (ms)
【#3119】 ext_clp External spindle speed clamp feedrate
Set the external spindle speed clamp feedrate.
The value is compared to each command feedrate of spindle when the external spindle speed clamp
signal is ON. The smaller federate will be applied for operation.
---Setting range---
0 to 99999 (r/min)
【#3120】 staptr Time constant reduction rate in high-speed synchronous tapping
When performing high-speed synchronous tapping, set the reduction rate of the time constant
compared to the time constant in normal synchronous tapping.
(Setting "0"or "100" will be regarded as reduction rate zero, so the time constant won't be reduced.)
E.g.) When set to "10", time constant in high-speed synchronous tapping will be 90% of that in
normal synchronous tapping.
---Setting range---
0 to 100(%)
298
If this parameter is set to an illegal value, this parameter follows the setting of "sp_t1 to sp_t4".
If this parameter is set to an illegal value, this parameter follows the setting of "sp_t1 to sp_t4".
If this parameter is set to an illegal value, this parameter follows the setting of "sp_t1 to sp_t4".