Specifications

A - 51
OPTION SLOT
Slot for mounting motion unit or MELSEC-Q
Series to match working purposes.
OUTPUT MODULE
Module that moves the servomotor in the
virtual mode. Includes the roller, ball screw,
rotary table and cam.
PANCAKE MOTOR
The axial dimension of this motor is approx.
100mm shorter than that of a standard motor.
This type of motor is used when the
servomotor installation space is narrow.
PARABOLIC CURVE
This is abbreviated as PB curve. This curve
features the smallest dimensionless maximum
acceleration, and enables short-time control
under conditions that suppress the
acceleration's maximum value.
Acceleration can be noncontinuous and
vibration can occur easily.
PARAMETERS
This specifies the PLC functions. The user can
set the memory size, relay or timer type, status
latch selection and comment size, etc., in
parameters. Default settings to set the basic
functions are provided. Fixed parameters and
servo parameters for positioning are also
provided.
PARAMETER BLOCK
This is used to easily change the control
conditions used for the positioning process,
such as the acceleration/deceleration control
data.
PASTE
Paste refers to redisplaying the parts cut from
the Edit screen and stored in the system
buffer.
PCPU
Positioning control CPU used in the motion
controller's CPU configuration.
There is also a sequence control CPU called
the SCPU.
PG0 (PG ZERO)
Refer to the term "ZERO POINT SIGNAL".
PLC READY
This signal indicates that the PLC CPU is
ready. The special function unit's function can
be used only in this state.
PLURAL HARMONIC MOTION
This is a type of cam curve.
With this movement, the acceleration pattern
moves in the same manner as several right
angle axis elements in uniform circular motion.
"Single harmonic motion" has been improved
so vibration does not occur as easily.
POSITIONING
Moving the machine from a point to the next
determined point. For example, used to
determine the length in a mm unit, or to find
the hole drilling position.
Servomotor is used to drive the motion
controller which issues the position command.
POSITIONING COMPLETION SIGNAL
Signal Xn1 which turns ON when the
positioning dwell time is completed.
Used to start a separate work (clamping, etc.)
after positioning with this signal.
Dwell time
Positioning complete
signal ON
Positioning Different type of work
Time
Speed
POSITIONING DEVICES
This refers to the input/output signals, internal
relays, data registers, special relays and
special registers used to exchange signals
between the SPCU (PLC CPU) and PCPU
(positioning CPU).