The Σ-S Series - YASKAWA E-S Series Product Manual

1.1 The Σ-S Series
The Σ-S Series
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The Σ-S Series is designed to convert pneumatic equipment in industrial machines to motorized opera-
tion. Functions and performances have been reduced from those of a general-purpose AC Servo Drive to
only those necessary to replace pneumatic equipment to take advantage of the control performance of
an AC Servo Drive while achieving an amazingly low price. Energy usage is greatly reduced in comparison
with pneumatic equipment or stepping motors to cut equipment running costs.
Main Features
 Increased Energy Efficiency
AC Servo Drive technology has been put to work to greatly reduce energy usage in comparison
with pneumatic equipment or stepping motors.
 Superior Control Functions
By using the Σ-S Series in equipment, you can use the superior functions of an AC Servo Drive
to increase productivity.
 Pressing Operation and Hold-in-Place Operation
Even fragile workpieces can be held or workpieces can be held securely. The workpiece can be
pressed or held in place at any force (torque), which reduces workpiece omissions and dam-
age, and increases work quality.
 Multi-point Positioning
You can position to different target positions. You can set the target positions required for the
workpieces to eliminate the need for machine changeover operations to match workpiece size.
This allows you to easily handle different types of workpieces.
 Zone Outputs
Workpieces are detected in realtime when they reach a specified zone and a digital signal is output.
With pneumatic equipment, there is no way to tell when the workpiece has reached the target
zone. Waiting time becomes necessary to allow for operating time differences that result from
changes in load mass and friction to ensure that the workpiece reaches the target zone.
With the Σ-S Series, you can use a zone output to start the next operation without waiting,
thereby reducing unnecessary waiting time and increasing production throughput.
 Acceleration/Deceleration Control
Acceleration at startup and deceleration when stopping can be controlled to the required values. With
traditional pneumatic equipment, rapid changes in speed when starting and stopping can have adverse
effects on workpieces, which can fly out of control. By controlling acceleration and deceleration when
starting and stopping, the shock when starting and stopping is reduced to prevent such problems.
 Simple Operation
You can use Yaskawa's SigmaWin+ Engineering Tool (free of charge) from trial operation to
servo tuning and programming to easily complete setup.
 Compact and Lightweight
 Servomotors
Models are available with 25 mm × 25 mm or 40 mm × 40 mm flanges to help you downsize equipment.
 SERVOPACK
The PCB format (123 mm × 80 mm (H×W)) helps you downsize equipment and provides a high
degree of installation freedom.
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