Setting Method - Mitsubishi Electric MELSERVO-J5 Series User Manual

Setting method

Precautions
After mounting the scale measurement encoder and setting the servo parameters, operate the device (scale measurement
encoder) to check that the data of the scale measurement encoder has been updated properly. If not properly updated, check
the mounting, wiring, and servo parameter settings of the scale measurement encoder. Change the polarity of the scale
measurement encoder as necessary.
Selecting the scale measurement function
Set the scale measurement function with a combination of [Pr. PA01] and [Pr. PA22].
■Selecting the semi closed loop control mode
The scale measurement function can be used only when the semi closed loop control mode is selected. Set [Pr. PA01.4 Fully
closed loop operation mode selection] to "0" (disabled: semi closed loop control mode).
No. Symbol
PA01.4 **STY
■Scale measurement function selection
Select the scale measurement function. Select "1" (use with absolute position detection system) or "2" (use with incremental
system) in [Pr. PA22.3 Scale measurement function selection] according to the encoder to be used.
No. Symbol
PA22.3 **PCS
■Canceling [AL. 25.2 Scale measurement encoder - Absolute position erased]
When using the device in an absolute position detection system, [AL. 25.2] occurs at initial power-on after the encoder cable
is connected. After allowing the alarm to occur for 5 s, cycle the power to cancel the alarm.
Selecting a communication method for the scale measurement encoder
The communication method varies depending on the scale measurement encoder type. For the communication method when
using a linear encoder as a scale measurement encoder, refer to "Compatible encoder list" in the following manual.
MR-J5 Partner's Encoder User's Manual
Select a cable to be connected to the CN2L connector with [Pr. PC26.3 Load-side encoder cable communication method
selection]. Select "0" (two-wire type) or "1" (four-wire type) in [Pr. PC26.3] according to the cable to be used.
No. Symbol
PC26.3 **COP8
4 APPLICABLE FUNCTIONS
168
4.3 Scale measurement function [G] [WG]
Name
Fully closed loop operation mode
selection
Name
Scale measurement function selection
Name
Load-side encoder cable
communication method selection
Outline
Select the semi closed loop control mode.
Initial setting: 0: Disabled (semi closed loop control mode)
Outline
Select the scale measurement function.
Initial setting: 0 (disabled)
Outline
Select the communication method of load side encoder cables.
Initial setting: 0 (two-wire type)