Orientation Adjustment - Mitsubishi Electric MDS-E Series Instruction Manual

MDS-E/EH Series Instruction Manual
6 Spindle Adjustment

6.1.4 Orientation Adjustment

Adjusts orientation time by adjusting SP016.
(1) Orientation characteristics
When decelerating to stop is executed with orientation, the remaining distance to the orientation stop position is
compensated within one rotation. Thus, as shown in Case 1 below, when the remaining distance in deceleration is
about "0", orientation time would be the shortest (time required to decelerate and stop + 0s), and as shown in Case
2 below, when the remaining distance in deceleration is about as much as one rotation amount, orientation time
would be the longest.
Motor rotation speed
0
q axis current command
0
Case1: Remaining distance at deceleration
【#13016】 SP016 DDT Phase alignment deceleration rate
Set the single-rotation position alignment deceleration rate for orientation stopping, phase alignment
while rotating and switching from non-interpolation mode to spindle synchronization mode while
rotating.
When the load inertia is larger, the setting value should be smaller.
When the setting value is larger, the orientation in-position and single-rotation position alignment
complete faster, but the impact applied on the machine will increase.
To change the deceleration rate only during rotation command (command F Δ T ≠ 0), set this
parameter together with SP070 (KDDT).
---Setting range---
1 to 32767 (0.1(r/min)/ms)
【#13035(PR)】 SP035 SFNC3 Spindle function 3
bit 2 : pyin Excitation rate selection in non-interpolation mode
The excitation rate after the in-position can be selected.
0: Select Excitation rate 1
bit 1 : vgin Speed loop gain set selection in non-interpolation mode
The speed loop gain set after the in-position can be selected.
0: Select Set 1
IB-1501229-F
Motor rotation speed
0
0
Time(s)
q axis current command (SP126: 1 SP128: 100)
0 rotation
1: Select Excitation rate 2
1: Select Set 2
334
q axis current command
Current limit range at deceleration
(SP152 or SP184)
Case2: Remaining distance at deceleration
Current edge [1]
Time(s)
Current edge [2]
1 rotation