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Mitsubishi Electric RD77MS2 User Manual Page 34

Melsec iq-r simple motion module.
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Synchronous encoder axis type
The following 3 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 34 Setting method for synchronous encoder
Synchronous encoder axis type
Incremental synchronous encoder
Synchronous encoder via servo amplifier
Synchronous encoder via CPU
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
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 serial absolute synchronous encoder (Q171ENC-W8) connected to CN2L of the servo amplifier
MR-J4-_B-RJ 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.
Control details
"[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".
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
 10
-9
mm
inch
 10
-9
inch
degree
 10
-9
degree
pulse
 10
-9
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]

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