Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Rotary Motors-Analog Voltage and Pulse Train Reference - Manual (Page 3)

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About this Manual
This manual describes information required for designing, testing, adjusting, and maintaining large-capacity
models of servo systems in the Σ-V series.
Keep this manual in a location where it can be accessed for reference whenever required. Manuals outlined on
the following page must also be used as required by the application.
Description of Technical Terms
The following table shows the meanings of terms used in this manual.
IMPORTANT Explanations
The following icon is displayed for explanations requiring special attention.
Notation Used in this Manual
• Notation for Reverse Signals
The names of reverse signals (i.e., ones that are valid when low) are written with a forward slash (/) before the
signal name.
Notation Example
BK = /BK
• Notation for Parameters
The notation depends on whether the parameter requires a value setting (parameter for numeric settings) or
requires the selection of a function (parameter for selecting functions).
Term Meaning
Cursor Input position indicated by Digital Operator
Servomotor Σ-V large-capacity SGMVV servomotor
SERVOPACK Σ-V large-capacity SGDV- H, - J servo amplifier
Converter Σ-V large-capacity SGDV-COA converter
Servo Drive A set that includes a servomotor, a SERVOPACK, and a converter
Servo System
A servo control system that includes the combination of a servo drive
with a host controller and peripheral devices
Servo ON Power to motor ON
Servo OFF Power to motor OFF
Base Block (BB)
Power supply to motor is turned OFF by shutting off the base current
to the power transistor in the SERVOPACK.
Servo Lock
A state in which the motor is stopped and is in position loop with a
position reference of 0.
Main Circuit Cable
Cables which connect to the main circuit terminals, including main
circuit power supply cables, control power supply cables, servomotor
main circuit cables, and others.
• Indicates important information that should be memorized, as well as precautions, such as
alarm displays, that do not involve potential damage to equipment.