YASKAWA MP2100 Series User Manual page 160

(4) Command Unit
No. 4
Set the unit for the reference that is input.
The minimum reference unit is determined by this parameter and, the Number of Decimal Places (fixed parameter 5). If
pulse is selected, the Electronic Gear Ratio (fixed parameters 8 and 9) will be disabled.
Refer to 7.3.1 Reference Unit in 7.3 Example of Setting Motion Parameters for the Machine for details.
0: pulse (electronic gear disabled)
1: mm
2: deg
3: inch
No. 5
Set the number of places to the right of the decimal point in input references.
The minimum reference unit is determined by this parameter and the Command Unit (fixed parameter 4).
Example
If Command Unit = mm and Number of Digits Below the Decimal Place = 3
Then, a reference unit of 1 = 0.001 mm
The setting of this parameter is disabled if the Command Unit is set to pulse in fixed parameter 4.
Refer to 7.3.1 Reference Unit in 7.3 Example of Setting Motion Parameters for the Machine for details.
No. 6
Specify the amount of travel in the load as the number of reference units for each turn of the load shaft.
Refer to 7.3.1 Reference Unit in 7.3 Example of Setting Motion Parameters for the Machine for details.
No. 8
Set the gear ratio between the motor and the load.
The following two values are set for a configuration in which the load shaft will turn n times in response to m turns of the
motor shaft.
• Gear ratio at Servomotor: m
• Gear ratio at load: n
The setting of this parameter is disabled if the Command Unit (Reference Unit) is set to pulse in fixed parameter 4.
Refer to 7.3.2 Electronic Gear in 7.3 Example of Setting Motion Parameters for the Machine for details.
No. 9
Same as for No. 8.
Command Unit
Setting Range
0 to 3
Number of Decimal Places
Setting Range
0 to 5
Command Unit per Revolution
Setting Range
31
1 to 2 −1
Gear Ratio [MOTOR]
Setting Range
1 to 65535
Gear Ratio [LOAD]
Setting Range
1 to 65535
7.2 Motion Parameter Details
Setting Unit
−
Setting Unit
−
Setting Unit
Reference unit
Setting Unit
rev (revolutions)
Setting Unit
rev (revolutions)
Default Value
0
Default Value
3
Default Value
10000
7
Default Value
1
Default Value
1
7-5