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5-4-1
1/0
interface
Signal name
Drive unit ready
R E A D Y
Near point signal
D O G
Zero-point signal
Positioning stop
S T O P
Start
S T A R T
Clear signal
C L E A R
Direction sign
S I G N
Pulse sequence
output
P U L S E
:1)
Set to HIGH when the MELDAS-S1 is normal and ready to
accept feed pulses.
:2)
Before starting, the KD71S1 checks the drive unit ready
signal, and if not in a ready status, outputs a zero
point return demand
(1)
Used
for
near-point detection during zero point return.
HIGH at near-point detection.
( 2 )
The zero point is the first grid point separated from
the DOG following thedetection of the near-point DOG.
(1) Zero point signal for zero point return, uses MELDAS-Sl's
grid ON signal (resolver phase angle 0).
( 2 )
When zero point return method is by stopper, and zero
point return completion is input from external sources,
this
signal
is also used.
(1) HIGH when positioning is stopped.
( 2 )
When this signal is
present, the KD71S1 stops execution of
positioning, and sets the start signal (START) to
OFF
(Low)
.
During output of feed pulse, or during dwell, start signal
is ON (HIGH). This signal is normally used as the brake
release signal for
mechanically-braked servos.
For
MELDAS-S1 alarm reset, this is the pulse signal output
before execution of zero point return operation.
1
0-5 Oms
I
I
Used as the direction sign for pulse sequence commands.
Differential output.
This is the pulse sequence command, and is output
differentially.
n r u l n n n
n
I
I
I
PULSE
1
I
SIGN
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