Mitsubishi Electric MR-J4 TM Series, Инструкция по эксплуатации

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17. APPLICATION OF FUNCTIONS
17 - 5
17.1.3 How to use the scale measurement function
(1) Scale measurement function selection
The scale measurement function is set with a combination of basic setting parameters [Pr. PA01] and
[Pr. PA22].
(a) Operation mode selection
The scale measurement function can be used only when the semi closed loop system (standard
control mode) is selected. Set [Pr. PA01] to "_ _ 0 _".
Operation mode selection
[Pr. PA01]
1 0 0
Semi closed loop system
(Standard control mode)
Setting value
0
Operation mode
Servo motor-side
resolution unit
Control unit
(b) Scale measurement function selection
Select a setting of the scale measurement function. Select "1 _ _ _" (Used in absolute position
detection system) or "2 _ _ _" (Used in incremental system) for [Pr. PA22] according to the encoder
in use.
Scale measurement function selection
0: Disabled
1: Used in absolute position detection system
2: Used in incremental system
0 0 0
[Pr. PA22]
(2) Selection of scale measurement encoder communication methods and polarities
The communication method varies depending on the scale measurement encoder type used. For the
communication method for using a linear encoder as a scale measurement encoder, refer to "Linear
Encoder Instruction Manual". Select "Four-wire type" because there is only the four-wire type for a
synchronous encoder.
Select the cable to be connected to CN2L connector in [Pr. PC26].
0 0 0
[Pr. PC26]
Load-side encoder cable communication method selection
0: Two-wire type
1: Four-wire type
When using an encoder of A/B/Z-phase differential output method, set "0".
Incorrect setting will trigger [AL. 70] and [AL. 71].
Select a polarity of the scale measurement encoder with the following "Encoder pulse count polarity
selection" and "Selection of A/B/Z-phase input interface encoder Z-phase connection judgement
function" of [Pr. PC27] as necessary.
POINT
"Encoder pulse count polarity selection" of [Pr. PC27] is not related to [Pr. PA14
Rotation direction selection]. Make sure to set the parameter according to the
relationships between the servo motor and linear encoder/rotary encoder.