Fujitsu MPG3XXXAH-E 사용자 설명서

C141-E116-01EN

4 - 17

As the servo information, the drive uses the two-phase servo generated from the gray code and Pos
A to D.  This servo information is used for positioning operation of radius direction and position
detection of circumstance direction.

The servo frame consists of 5 blocks; write/read  recovery, servo mark, gray code, Pos A to D and
PAD.  Figure 4.6 shows the servo frame format.

Pos

C

PAD

Pos

D

Pos

B

Pos

A

1.81 

µ

s

0.17 

µ

s

0.16 

µ

s

0.72 

µ

s

R/W Recovery Field

0.56 

µ

s

0.56 

µ

s

0.56 

µ

s

0.74 

µ

s

0.80 

µ

s

PA

SSM

ASM

SCD

0.53 

µ

s

Servo

Frame

DATA

DATA

Servo

Frame

86.81 

µ

s

6.63 

µ

s