7.3 Example of Setting Motion Parameters for the Machine
7-53
7
7.3.6 Acceleration/Deceleration Settings
The acceleration/deceleration can be set to either the rate of acceleration/deceleration or the time required to
reach the rated speed from 0. The parameters related to acceleration/deceleration settings are listed in the follow-
ing table.
Parameter Type
Parameter No.
(Register No.)
Name
Description
Default
Value
Motion Fixed
Parameters
No. 5
Number of
Decimal Places
Set the number of digits below the decimal point in the input
reference unit. The minimum reference unit is determined by
this parameter and the Command Unit (fixed parameter 4)
Example:
Command Unit = mm
,
Number of Decimal Places = 3
1 reference unit = 0.001 mm
3
No. 34
Rated Speed
Set the number of rotations when the motor is rotated at the
rated speed (100% speed). Confirm the motor specifications
before setting this parameter.
3000
No. 36
Encoder Resolu-
tion
Set the number of pulses (the value after multiplication) per
motor rotation.
Example:
For a 16-bit encoder, set 216 = 65536.
65536
Motion Setting
Parameters
OW
03,
bits 4 to 7
Acceleration/
Deceleration
Units
Set the unit for acceleration/deceleration.
0: Reference units/s
2
1: ms
0
OL
36
Linear
Acceleration
Time
Set the rate of acceleration or acceleration time constant
according to the setting of OW
03, bits 4 to 7.
• When Acceleration/Deceleration Units is set to 0
(Reference units/s
2
), set the rate of acceleration.
Pulse unit: 1 = 1 pulse/s
2
mm unit: 1 = 1 reference unit/s
2
deg unit: 1 = 1 reference unit/s
2
Inch unit: 1 = 1 reference unit/s
2
Example: Number of Decimal Places = 3
mm unit: 1 = 0.001 mm/s
2
deg unit: 1 = 0.001 deg/s
2
Inch unit: 1 = 0.001 inch/s
2
• When Acceleration/Deceleration Units is set to 1 (ms), set
the time constant to go from 0 to the rated speed without
relation to the reference unit.
0
OL
38
Linear
Deceleration
Time
Set the rate of deceleration or deceleration time constant
according to the setting of OW
03, bits 4 to 7.
• When Acceleration/Deceleration Units is 0 (Reference
units/s
2
), set the rate of deceleration.
Pulse unit: 1 = 1 pulse/s
2
mm unit: 1 = 1 reference unit/s
2
deg unit: 1 = 1 reference unit/s
2
Inch unit: 1 = 1 reference unit/s
2
• When Acceleration/Deceleration Units is 1 (ms), set the
time constant to go from the rated speed to 0 without
relation to the reference unit.
0