Specifications

App - 38
F
FAST OPR
The axis returns to the machine OP at the OPR
speed without detecting the zeroing dog.
(This is not validated unless machine OPR has
been carried out first.)
OP
OPR speed
Dog switch
FEEDBACK PULSE
A method of returning a pulse train to confirm
whether the machine faithfully operated according
to the commands issued in automatic control. If the
machine did not faithfully operate according to the
commands, a correction command is issued. Fo
r
example, if a command is issued for 10,000 pulses,
and a feedback pulse of 10,000 pulses is returned,
then the balance becomes 0 and it can be judged
that the command was faithfully followed.
FLASH ROM
This battery-less memory can be used to store
parameters and positioning data for backup.
Because it is battery-less, battery maintenance is
not required
I
INCREMENTAL SYSTEM
The current value is 0 in this system. Targe
t
positions are represented by the designated
direction and distance of travel from the curren
t
value. Also called the relative address system. This
system is used in fixed-feed, etc.
Stop
No.1 No.2 No.3
0
00
RightRight
Left
No.2 is several millimeters
to the right of No.1.
INCREMENTAL ENCODER
A device that simply outputs ON/OFF pulses by the
rotation of the axis. 1-phase types output only
A
pulses, and do not indicate the axis rotation
direction. 2-phase types output both A and B pulse
trains, and can judge the rotation direction. The
direction is judged to be forward if the B pulse train
turns ON when A is ON, and judged to be reverse i
f
A turns ON when B is ON. There is also anothe
r
type of incremental encoders with a zero signal.
The most commonly used incremental encoders
output between 100 and 10,000 pulses per axis
rotation.
A signal slit
B signal slit
Light-emitting diode
Slit disk
Phototransistor
Rotating axis
Zero signal slit
1 pitch
A
B
Zero signal
1 pulse per axis rotation
A
Z
B
pitch
1
4
INTERLOCK
In this condition, the machine is blocked from
moving to the next operation until the operation in
progress is complete. This function is used to
prevent devices from being damaged and
overrunning.
Y1
Y0
Forward run
Y0
Y1 Reverse run