Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual page 193

■General
The detection precision is based on the fixed-cycle processing of the Motion CPU.
When the input module setting is "Inter-module synchronization valid" and the servo amplifier DI3 signal setting is "high
precision input", the general detection precision is applied.
■High precision
When the input module setting is "Inter-module synchronization valid", the stopping precision of the count method home
position return or the speed-position switching control can be high by setting the DOG signal precision setting to "high
precision".
3
Refer to the following for the input module setting method.
MELSEC iQ-R Motion controller Programming Manual (Common)
When this setting is applied to a signal that does not support high precision input a moderate error (error code: 30D2H)
occurs.
3 PARAMETERS FOR POSITIONING CONTROL
191
3.6 External Signal Parameter