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5. Spindle Adjustment
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(9) Adjusting deceleration time
When the deceleration time "td" is significantly different from the acceleration time "ta" (td < 0.95 × ta,
1.1 × 1a < td) and no problem with the acceleration time, adjust the deceleration time by changing
the target value of variable torque limit magnification at deceleration (SP087) setting. In cases,
however, where the variable torque characteristic cannot be lowered to the SP087 level, adjust by
changing the speed for starting change of variable torque limit magnification at deceleration (SP088)
setting.
No. Abbr. Parameter name
Details
Setting
range
Standard
SP087 DIQM* Target value of
variable torque limit
magnification at
deceleration
Set the minimum value of variable torque limit at deceleration. 0 to 150
(%)
75
Set the speed where the torque limit value at deceleration
starts to change.
Torque limit
Inversely proportional to
speed
SP088 DIQN*
Speed for starting
change of variable
torque limit
magnification at
deceleration
100%
SP087
SP088 SP017 Speed
0 to 32767
(r/min)
3000
Adjusting SP087, SP088
td > 1.1 × ta?
SP087, SP088 adjustment completed
Increase SP087 by +5.
YES
NO
Measure acceleration/deceleration
waveform at high speed
td < 0.95 × ta?
Increase SP087 by –5.
YES
NO
SP087<100 × – ?
SP088
SP017
Increase SP088 by –500.
YES
NO