Data Used For Control - Mitsubishi Electric MELSEC Q Series User Manual

10 FUNCTION DETAILS

10.2.2 Data used for control

Symbol
Pr.0
Parameter
Pr.2
(3) Setting example when the command unit is [μm] for the linear servo
QD74MH
Command
value
Calculate the number of pulses (AP) and movement amount (AL) for the linear
encoder in the following conditions.
Liner encoder resolution =
Liner encoder resolution: 0.05[μm]
AP 1
AL = 0.05 =
Set the followings.
For command unit: 1[μm]...........
For command unit: 0.1[μm]........
Set the number of pulses in "
movement amount in "
Set the following parameters for the electronic gear function.
Refer to Section 6.3 to 6.8 for the buffer memory address and details.
Items
Electronic gear numerator (AP)
Electronic gear denominator (AL)
AP Servo
PLS
AL amplifier
Feedback pulse
Number of pulses(AP)
Movement amount value(AL)
20 20
1.0 = 1[×1μm] ................................ For command unit: 1[μm]
20 2
= 10[×0.1μm] = 1 .................... For command unit: 0.1[μm]
Pr.0
Pr.2
Pr.0
Pr.2
Electronic gear numerator ", and the
Pr.0
Electronic gear denominator" in the actual setting.
Pr.2
Set a numerator of electronic gear applied to position command.
Set a denominator of electronic gear applied to position command.
10 - 6
Linear servo motor
PLS
PLS
Linear encoder
Electronic gear numerator
Electronic gear denominator = 1
Electronic gear numerator
Electronic gear denominator = 1
Details
MELSEC-Q
= 20
= 2