Yaskawa Large Capacity Sigma II Series - Manual (Page 27)

1.3 Features of Σ-ΙΙ Series Servos
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1
„ Using the SERVOPACK for Position Control
The SERVOPACK can be used for position control as shown below.
The host controller can send a position reference (pulse train) to the SERVOPACK to per-
form positioning or interpolation. This type of SERVOPACK contains a position control
loop.
Parameters can be used to select either of the following pulse trains:
• Sign + pulse train
• Two-phase pulse train with 90
° phase difference
• Forward and reverse pulse trains
The host controller receives a pulse train (position information) from the SERVOPACK and
uses it to monitor the position.
„ Parameter Setting
A Digital Operator can be used to set parameters for a SERVOPACK as follows:
• Setting parameters to enable or disable each function
• Setting parameters required for functions to be used
Set parameters according to the servo system to be set up.
Position
monitoring
SERVOPACK
(position control mode)
Speed/current loop
Position
information
Host controller
Pulse train
Servomotor
Power
amplifier
Position feedback
Encoder
Position
reference
Pulse
train
- -
+ +