Yaskawa JAPMC-MC2300 - Manual (Page 133)

6.1 Example Setting of Motion Parameters for the Machine
6.1.5 Speed Reference
6-9
6
Motion Parameter Setting Examples
6.1.5 Speed Reference
There are two methods of setting the speed reference for the feed speed or other speeds. One method involves using
reference units and the other method involves setting the percentage (%) of the rated speed. The settings method
depends on the related parameter settings.
( 1 ) Related Parameters
The parameters related to speed references are listed in the following table.
Parameter Type
Parameter No.
(Register No.)
Name Description
Default
Value
Motion Fixed
Parameters
No. 5
Number of
Digits below
Decimal Point
Set the number of digits below the decimal point in the refer-
ence unit being input. The minimum reference unit is deter-
mined by this parameter and the Reference Unit Selection
(fixed parameter 4).
Example:
Reference Unit = mm, Number of Digits below Decimal
Point = 3
1 reference unit = 0.001 mm
3
No. 34
Rated Motor
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
Number of Puls-
es per Motor
Rotation
Set the number of pulses (the value before multiplication)
per motor rotation.
Example:
For a 16-bit encoder, set 2
(16 −2) = 16384.
16384
Motion Setting
Parameters
OW 03
Bits 0 to 3
Speed Unit
Selection
Set the unit for reference speeds.
0: Reference unit/s
1:10
n reference units/min (n: Number of Digits below
Decimal Point)
2: 0.01%
3: 0.0001%
1
OL 10
Speed
Reference
Setting
Set the feed speed. The unit for this parameter is set in
OW
03, bits 0 to 3.
Example:
When the Number of Digits below Decimal Point is set to 3,
units are as follows for the setting of the Speed Unit:
• Speed Unit Set to 0: Reference units/s
pulse unit: 1 = 1 pulse/s (regardless of the value n)
mm unit: 1 = 0.001 mm/s
deg unit: 1 = 0.001 deg/s
inch unit: 1 = 0.001 inch/s
• Speed Unit Set to 1: 10 n reference units/min
pulse unit: 1 = 1000 pulse/min
(regardless of the value n)
mm unit: 1 = 1 mm/min
deg unit: 1 = 1 deg/min
inch unit: 1 = 1 inch/min
• Speed Unit Set to 2: 0.01%
Set as a percentage of the rated speed (1 = 0.01%) unre-
lated to the reference unit setting.
3000
OW 18 Override
Setting an output ratio (%) for the setting allows the posi-
tioning speed to be changed without changing the Speed Ref-
erence setting.
Setting unit: 1 = 0.01%
10000