Mitsubishi Electric LD77MH, User Manual

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Chapter 2 Input Axis Module
Synchronous encoder axis type
The following 3 types of synchronous encoders can be used for the synchronous encoder
axis.
Refer to Section 2.2.2 for the setting method for each synchronous encoder axis.
Synchronous encoder
axis type
Details
Incremental synchronous
encoder
The incremental synchronous encoder that is connected to the manual pulse
generator/incremental synchronous encoder input of the Simple Motion module is
used as the synchronous encoder axis.
Synchronous encoder via
servo amplifier
QD77MS LD77MS
QD77GF
[CiA402 mode]
Used to use a synchronous encoder connected to the servo amplifier which supports
the scale measurement mode as a synchronous encoder axis.
Synchronous encoder via
CPU Used to operate a gray code encoder that is connected to the input module of PLC
CPU as a synchronous encoder axis.
Control method for synchronous encoder axis
The following controls can be executed for the synchronous encoder axis by using
"[Cd.320] Synchronous encoder axis control start" and "[Cd.321] Synchronous encoder
axis control method".
Setting value of "[Cd.321]
Synchronous encoder
axis control method"
Control details
0: Current value change
"[Md.320] Synchronous encoder axis current value" and "[Md.321] Synchronous
encoder axis current value per cycle" are changed based on the setting of "[Cd.322]
Synchronous encoder axis current value setting address".
1: Counter disable Input from the synchronous encoder is disabled.
2: Counter enable Input from the synchronous encoder is enabled.