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MDS-D-SVJ3/SPJ3 Series Instruction Manual
5-2 Adjustment procedures for each control
(b) Adjusting deceleration time
Adjusts deceleration time in the same manner as acceleration time by using SP071 (variable
current limit during deceleration, lower limit value) and SP072 (variable current limit during
deceleration, break point speed).
Adjust deceleration time
Deceleration time
adjustment completed
Set SP071 and SP072
When SP071=100 is set, current limit during deceleration is
constant regardless of the speed. When setting SP071 to
100 or less and SP072 to maximum rotation speed or less,
deceleration time will be longer as current limit during
deceleration may be variable depending on the speed.
* Although a value more than 100 can be set to SP071,
basically, 100 or less should be set.
0
Speed waveform (Ch1: SP125=0) Motor rotation speed
0
Phase current waveform (clamp meter)
Adjust SP071 and SP072 so that deceleration
time is within
±
10% of acceleration time.
Set the measuring device so that U phase current can be
measured by a clamp meter.
Acceleration/deceleration
operation
Set D/A output
as shown on the right
Execute M5 stop operation from the maximum rotation speed.
Ch1
Output
waveform:
Motor
rotation
speed
SP125:1
SP127: Set so that the
maximum rotation
speed is displayed.