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Using This Manual
Technical Terms Used in This Manual
The following terms are used in this manual.
Term
Meaning
Servomotor
A
Σ
-7-Series Rotary Servomotor, Direct Drive Servomotor, or Linear Servomotor.
Rotary Servomotor
A generic term used for a
Σ
-7-Series Rotary Servomotor (SGMMV, SGM7J, SGM7A, SGM7P,
or SGM7G) or a Direct Drive Servomotor (SGMCV or SGMCS).
The descriptions will specify when Direct Drive Servomotors are excluded.
Linear Servomotor
A generic term for
Σ
-7-Series Linear Servomotors (SGLG, SGLF, or SGLT).
SERVOPACK
A
Σ
-7-Series
Σ
-7W Servo Amplifier with MECHATROLINK-III Communications References or
a
Σ
-7-Series
Σ
-7C Servo Amplifier.
Servo Drive
The combination of a Servomotor and SERVOPACK.
Servo System
A servo control system that includes the combination of a Servo Drive with a host controller
and peripheral devices.
servo ON
Supplying power to the motor.
servo OFF
Not supplying power to the motor.
base block (BB)
Shutting OFF the power supply to the motor 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 a position loop with a position reference of 0.
HWBB
An abbreviation for hard wire base block, which is a safety function that is designed to shut
OFF the current to the motors with a hardwired circuit.
Main Circuit Cable
One of the cables that connect to the main circuit terminals, including the Main Circuit Power
Supply Cable, Control Power Supply Cable, and Servomotor Main Circuit Cable.
S
The Engineering Tool for setting up and tuning Servo Drives or a computer in which the Engi-
neering Tool is installed.
MPE720
The Engineering Tool or a personal computer running the Engineering Tool
PLC
A Programmable Logic Controller.
Servo Section
The part of a
Σ
-7C SERVOPACK that provides servo functionality.
Controller Section
The part of a
Σ
-7C SERVOPACK that provides controller functionality.
CPU
The CPU built into the Controller Section of a
Σ
-7C SERVOPACK.
Motion Control Func-
tion Module
The SVD, SVC4, or SVR4 Function Modules in the Controller Section of the SERVOPACK.
SVD
A Motion Control Function Module for the two axes of a
Σ
-7C SERVOPACK that connects to
the Controller Section and Servo Section of the
Σ
-7C SERVOPACK through a bus.
SVC4
A Motion Control Function Module that uses MECHATROLINK-III communications to com-
municate with MECHATROLINK-III slave devices.
Communications
Function Module
The Function Module in the 218IFD built into the CPU.
