Specifications

A - 46
FEED PULSE
Pulses issued to the servo unit or stepping
motor from a command device such as a
positioning unit. Also called the command
pulse.
FEED SCREW
Machine that positions with the screw rotation,
and functions as the basic screw. Ball screws
are often used to reduce backlash and
dimension error.
1 rotation
by the motor
Positioning
Worm gear
Lead (feedrate per screw rotation)
5TH POWER POLYNOMIAL CURVE
This curve with smooth and good
characteristics has five boundary conditions.
FILE NAME
Name assigned when writing data or programs
into the FD or HD.
Configured of the system name and machine
name, using up to 8 characters. An index
character is attached.
Refer to the term "MACHINE NAME".
FIXED-DIMENSION FEED
This is the feeding of a set dimension for
cutting sheet and bar workpieces into the
designated dimensions. Increment system
positioning is often used. The current value is
not incremented, even when the feed
operation is repeated.
FEED-1, FEED-2 and FEED-3 are available.
FOLLOWER MEMBER
Generic term of the partner element (rod that
moves back and forth) which contacts with the
cam, or the load system following that element.
FORMATTING
Refers to initializing the HD or FD disk.
Operation to write the personal computer rules
and directly, etc., into the disk. The disk
memory size will decrease according to the
format.
The disk is for general-purpose use, so it must
be formatted according to the personal
computer. Formatting only needs to be carried
out once.
FORWARD LIMIT SWITCH SIGNAL
This is the positioning control device input
signal used to notify that the external upper
limit switch (b contact configuration, normally
ON) outside the movement range at which
positioning control is carried out was activated.
The positioning operation stops when the
external FLS signal (b contact) turns OFF
(non-continuity status).
FULLY CLOSED CONTROL
The closed encoder is installed on the
machine's movement mechanism to detect the
direct movement distance and minimized the
machine system error for the conveyance
system mechanisms (gear, ball screw, timing
belt, etc.) installed between the motor and
machine.
Allows positioning control with a mechanism
having slip to be optimized.
PLG
Motor
Feed roller
Cutter
Closed
encoder
Motion
controller
Servo
ampli-
fier
MR- B-So
Using the closed encoder, the workpiece
length can be directly detected, so the
workpiece cutting length will be constant
regardless of the feed roller slip.