Mitsubishi Electronics MR-MC210 Manual De Usuario
6 - 3
6. APPLICATION FUNCTIONS
6.1.2 Settings
Control parameters
Parameter No.
(Note)
Abbreviation
Name
Initial
Value
Unit
Setting
range
Function
020A *CMXL
Electronic
gear
numerator (lower)
0001h
1 to
5242879
(32 bits)
Set the numerator for electronic gears.
020B *CMXH
Electronic
gear
numerator (upper)
0000h
020C *CDVL
Electronic
gear
denominator
(lower)
(lower)
0001h
1 to
589823
(32 bits)
Set the denominator of the electronic gear.
020D *CDVH
Electronic
gear
denominator
(upper)
(upper)
0000h
Note. The parameters with a * mark at the front of the parameter abbreviation become valid when the system is started.
6.1.3 Setting example of electronic gears
The following is a setup example for use of µm as a command unit for a piece of equipment that uses ball
screws.
(1) Equipment specification
screws.
(1) Equipment specification
Item Symbol
Value
Unit
Remarks
Ball screw lead
Pb
10
mm
=10000
m
Deceleration ratio
n
1/2
Number of encoder pulses per revolution
Pt
4194304
pulse/rev
Servo motor
Pt = 4194304
Deceleration constant n = 1/2
Ball screw pitch Pb = 10 [mm]
Number of encoder pulses
per revolution
per revolution
(2) Calculation of electronic gears
CMX
CDV
CDV
Pt
n Pb
4194304
1/2 10000
4194304
5000
400000h
1388h
S
Pt
Note. S is the movement amount for 1 revolution of the servo motor.
(3) Parameter settings
Because the value obtained by calculating the electronic gear is within the setting range, the value can be
set without reducing.
set without reducing.
Parameter No.
(Note)
Abbreviation
Name Setting
value
020A
*CMXL
Electronic gear numerator (lower)
0000h
020B
*CMXH
Electronic gear numerator (upper)
0040h
020C
*CDVL
Electronic gear denominator (lower)
1388h
020D
*CDVH
Electronic gear denominator (upper)
0000h
Note. The settings for the parameters with a * mark at the front of the abbreviation are validated when the system is
restarted.