6.4 Settings for References
6.4.1 Motor Speed
6-10
6.4
Settings for References
6.4.1
Motor Speed
For program table operation, the positioning speed is registered in SPD and the registration
speed is registered in RSPD. For jog speed table operation, the jog speed is registered in
JSPD.
The speed is set in units of 1,000 reference units/min.
6.4.2
Acceleration Rate and Deceleration Rate
For program table operation, the acceleration rate is set in ACC and the deceleration rate is set
in DEC.
For jog speed table operation, the settings of the following Pn63E parameter (Acceleration
Rate) and Pn640 parameter (Deceleration Rate) are used.
The acceleration and deceleration rates are set in units of 1,000 reference units/min/ms.
The following calculation applies if the reference unit is 0.01 mm and the positioning
speed is 15 m/min.
Thus, the positioning speed setting is 1,500 [1,000 reference units/min].
15,000 mm/min
0.01 mm
= 1,500,000 reference units/min
Pn63E
Acceleration Rate
Setting Range Setting Unit Default Setting When Enabled Classification
1 to 199,999,999
1,000 (reference
units/min)/ms
1,000 Immediately Setup
Pn640
Deceleration Rate
Setting Range Setting Unit Default Setting When Enabled Classification
1 to 199,999,999
1,000 (reference
units/min)/ms
1,000 Immediately Setup
The following calculation applies if the reference unit is 0.01 mm and the acceleration
time from 0 m/min to 15 m/min is 100 ms.
Thus, the acceleration setting is 15 [1,000 reference units/min].
Set the acceleration and deceleration so that the values of the two settings do not differ greatly.
If they differ greatly, the machine will not accelerate in accordance with the settings.
For example, if Pn63E is set to 199,999,999 and Pn640 is set to 1, then the machine’s perfor-
mance will be unpredictable.
15,000 mm/min
0.01 mm
= 1,500,000 reference units/min
1,500,000 reference units/min
100 ms
= 15,000 [(reference units/min)/ms]
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