Terms - Mitsubishi Electric MELSEC-L02SCPU User Manual

Unless otherwise specified, this manual uses the following terms.
Term
CPU module
Power supply module
Branch module
Extension module
END cover
Display unit
Extension cable
LCPU
Programming tool
GX Works2
GX Developer
Encoder
Near-point dog
Servo on
Servo motor
Stepping motor
Zero signal
Drive unit (servo amplifier)
Pulse generator
Warning
PWM
18

TERMS

The abbreviation for the MELSEC-L series CPU module
The abbreviation for the MELSEC-L series power supply module
The abbreviation for the MELSEC-L series branch module
The abbreviation for the MELSEC-L series extension module
A cover to be attached to the right side of the rightmost MELSEC-L series module
A liquid crystal display to be attached to the CPU module
The abbreviation for the MELSEC-L series extension cable
Another term for the MELSEC-L series CPU module
A generic term for GX Works2 and GX Developer
The product name of the software package for the MELSEC programmable controllers
One of the pulse generators that converts input data into binary data (on and off)
A switch used in positioning systems, placed in front of the starting point of a workpiece When this switch
turns on, the feed speed is switched to creep speed. Therefore, the deceleration time is required while this
switch is on.
A signal that indicates the normal status of a servo amplifier. A servo amplifier is operable only when this
signal is on.
A motor that rotates according to a command. This motor is highly responsive, therefore frequent and rapid
start and stop are available with high precision.
DC and AC type motors are available. Feedback control is available with the included pulse generator that
detects the number of rotations.
A motor that rotates by the predetermined angle for every pulse. The number of rotations is proportional to
the number of pulses.
A small power motor is applied, and it rotates accurately without feedbacks. Do not overload the motor,
otherwise it will be out of step.
PG0 of a pulse generator (encoder), that is detected once in one rotation
A unit used to amplify the power and control the motor in the operation by the positioning function since the
signals, such as pulses, that are output from the CPU module are low voltage and small current.
The unit, also called a servo amplifier, is provided with a servomotor and step motor.
A device that generates pulses. For example, by attaching this device on a motor axis, pulses can be
generated by the rotation of the axis.
Different from an error, a warning is a minor error that does not terminate or stop the operation even if it is
detected.
The abbreviation for pulse-width modulation, a method of changing a ratio of on width to off width of a pulse
wave
Description