Mitsubishi Electric MELSEC iQ-R Series User Manual page 38

Synchronous encoder axis type
The following 4 types of synchronous encoders can be used for the synchronous encoder axis.
Refer to the following for the setting method for each synchronous encoder axis.
Page 38 Setting method for synchronous encoder
Synchronous encoder axis type
Incremental synchronous encoder
[RD77MS]
Synchronous encoder via servo amplifier
Synchronous encoder via CPU
Synchronous encoder via link device
[RD77GF]
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"
0: Current value change
1: Counter disable
2: Counter enable
Units for the synchronous encoder axis
The position units and speed units for the synchronous encoder axis are shown below for the setting of "[Pr.321] Synchronous
encoder axis unit setting".
■Synchronous encoder axis position units
Setting value of "[Pr.321] Synchronous encoder axis unit
setting"
Control unit
0: mm
1: inch
2: degree
3: pulse
2 INPUT AXIS MODULE
36
2.2 Synchronous Encoder Axis
Details
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.
Used to use a synchronous encoder connected to the servo amplifier which supports the scale measurement
mode as a synchronous encoder axis.
Used to operate a gray code encoder that is connected to the input module of CPU module as a synchronous
encoder axis.
Used to use an incremental synchronous encoder, etc. connected to the high-speed counter module on the CC-
Link IE Field Network as a synchronous encoder axis.
Control details
"[Md.320] Synchronous encoder axis position value" and "[Md.321] Synchronous encoder axis position value per
cycle" are changed based on the setting of "[Cd.322] Synchronous encoder axis position value setting address".
Input from the synchronous encoder is disabled.
Input from the synchronous encoder is enabled.
Number of decimal places for
position
0

9
0

9
0

9
0

9
Synchronous encoder
axis position unit
mm

-9
 10 mm
inch

-9
 10 inch
degree

-9
 10 degree
pulse

-9
 10 pulse
Range
-2147483648 to 2147483647 [mm]

-2.147483648 to 2.147483647 [mm]
-2147483648 to 2147483647 [inch]

-2.147483648 to 2.147483647 [inch]
-2147483648 to 2147483647 [degree]

-2.147483648 to 2.147483647 [degree]
-2147483648 to 2147483647 [pulse]

-2.147483648 to 2.147483647 [pulse]