Panasonic A4P Series User Manual

47

• If the encoder resolution  X                 is multiple of 4, Z-phase will be fed out synchronizing with A-phase. 

In other case, the Z-phase width will be equal to the encoder resolution, and will not synchronize with 
A-phase because of narrower width than that of A-phase.

• In case of the 5-wire, 2500P/r incremental encoder, the signal sequence might not follow the above fig.   
  until the first Z-phase is fed out. When you use the pulse output as the control signal, rotate the motor 
  one revolution or more to make sure that the Z-phase is fed out at least once before using.

SV.Pr44
SV.Pr45

A

B

Z

A

B

Z

synchronized

not-synchronized

SV.Pr44
SV.Pr45

when the encoder resolution                 is multiple of 4,

SV.Pr44
SV.Pr45

when the encoder resolution                 is not multiple of 4,

Frame ground

Signal ground

FG

GND

18

26

• Internally connected to the ground terminal inside the servo driver.

• Signal ground
• Internally insulated from the control signal power supply (COM–) inside the 

servo driver.