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5 Spindle Adjustment
MITSUBISHI CNC
(4) Acceleration/deceleration adjustment
Checks acceleration waveform and adjusts deceleration time.
(a) Checking acceleration waveform
Set the measuring device so that U phase current can be
measured by a clamp meter.
Perform acceleration/deceleration operation from the
maximum rotation speed in 1000 rotations increments.
0
Speed waveform (Ch1: SP125=0)
0
Phase current
waveform
(clamp meter)
A
cceleration time
Motor rotation
speed
Ch1
Output
waveform:
Motor
rotation
speed
SP125:1
SP127: Set so that the
maximum rotation
speed is displayed.
Acceleration waveform
check completed
Acceleration/deceleration
operation
Check acceleration waveform
Set D/A output as shown
on the right