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REVIEWING THE FULL-CLOSED LOOP SPECIFICATIONS
496
e) Output Phase Form: Refer to the following phase relation for the feedback pulse to
Servopack
Forward
90
_
Reverse
90
_
Phase
−
A
Phase
−
B
Phase
−
C
Phase
−
A
Phase
−
B
Phase
−
C
Forward: CCW when viewed from the drive end
Reference pulse frequency =
= 200kPPS
20mm/s
0.1
µ
m/pulse
Motor Speed =
×
60s/min = 600r/min
20mm/s
2mm/rev
•
When incremental encoder is used:
DR2 Servopack
Feed
forward
gain
Primary
lag filter
Bias
COIN
signal
Speed
loop
Current
loop
SGM
Servomotor
Encoder
Error
counter
Smooth-
ing
Differ-
entiation
Reference
pulse
PG signal
output
Position Detector
Amplifier
Note: Semi
−
closed and full
−
closed cannot be changed by internal setting.
(DR2
−
jjj
C
j
−
F is the full
−
closed loop type Servopack.)
×
4
G