Mitsubishi Electric M800 Series Manual page 566

M800/M80/E80/C80 Series Alarm/Parameter Manual
16 Machine Parameters
< Spindle synchronization multi-step acceleration/deceleration control parameter >
The acceleration/deceleration control can be set up to eight steps in spindle synchronization control to carry out an optimal
acceleration/deceleration control in accordance with the spindle motor characteristics whose output torque steps down
when exceeding the base rotation speed and further attenuate in output stepdown zone.
For 2nd step or subsequent steps, the specification allows to set the time constant magnification and changeover rotation
speed based on the acceleration/deceleration setting of the 1st step.
Set the value of limit rotation speed or higher as the changeover rotation speed for the step not to be shifted when not car-
rying out a step shift.
10000
8000
6000
4000
2000
0
#3021
Not used. Set to "0".
#3022 sgear
Set the deceleration rate of the encoder to the spindle when inputting ABZ pulse output encoder feedback to
NC during analog spindle control.
0: 1/1
1: 1/2
2: 1/4
3: 1/8
---Setting range---
0 to 3
slimit1=10000
sptc7=9200
sptc6=8200
sptc5=7200
sptc4=6000
sptc3=4800
sptc2=3000
sptc1=1000
spt=400
1200(=spt * spdiv1 = 400 * 3)
2000(=spt * spdiv2 = 400 * 5)
2800(=spt * spdiv3 = 400 * 7)
8000(=spt * spdiv6 = 400 * 20)
11200(=spt * spdiv7 = 400 * 28)
Encoder gear ratio
549
0 1000 2000
Time [ms]
4000(=spt * spdiv4 = 400 * 10)
5600(=spt * spdiv5 = 400 * 14)
3000 4000
IB-1501279-H