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Appendix - 42
MELSEC-
A
APPENDICES
REFERENCE AXIS SPEED
This is the speed of the reference axis during
interpolation operations.
Y
axis speed
(interpolation axis)
X axis speed
(reference axis)
Reference axis speed
REGENERATIVE BRAKE OPTION
This function is an option. It is used when
carrying out highly repetitive
acceleration/deceleration.
Refer to "EXTERNAL REGENERATIVE
RESISTOR".
RESOLVER
This device detects the angle by resolving the
two voltages of the analog input. Also called a
2-phase synchro. For a 1-phase voltage input,
the axis rotation angle is converted into a
perpendicular 2-phase voltage (analog
voltage) and output.
Movement distance
for one resolver rotation
Toothed gear
Motor
Position detection value
Resolver
(addresses 0 to 4095, converted to digital)
RLS SIGNAL (Reverse Limit Signal)
This is the input signal that notifies the user
that the limit switch (b contact configuration,
normally continuity) installed at the lower limit
of the positioning control enabled range was
activated.
The positioning operation stops when the RLS
signal turns OFF (non-continuity).
ROTARY TABLE
A round table on which the workpiece is
placed. Positioning control is carried out while
rotating the workpiece in a 360
°
range.
S-CURVE
ACCELERATION/DECELERATION
In this pattern, the acceleration and
deceleration follow a sine curve, and the
movement is smooth. The S-curve ratio can be
set from 1 to 100%.
A
cceleration Deceleration
SERVO AMPLIFIER
Refer to the term "DRIVE UNIT".