Mitsubishi A1SD75P1-S3, User Manual

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MELSEC-A
3 SPECIFICATIONS AND FUNCTIONS
Signal name Pin No. Signal details
Lower limit signal 13
•
This signal is input from the limit switch installed at the stroke lower limit
position.
•
Positioning will stop when this signal turns OFF.
•
When zero point return retry function is valid, this will be the lower limit
for finding the near-point dog signal.
Upper limit signal 12
•
This signal is input from the limit switch installed at the stroke upper limit
position.
•
Positioning will stop when this signal turns OFF.
•
When zero point return retry function is valid, this will be the upper limit
for finding the near-point dog signal.
Near-point dog signal 11
•
Use this for detecting the near-point dog during machine zero point
return.
•
The near-point dog signal is detected at turning from OFF to ON.
In-position 8 •
Input the in-position signal from the drive unit.
Drive unit READY 7
•
This signal turns ON when the drive unit is normal and the feed pulse
can be accepted.
•
The AD75 checks the drive unit READY signal, and outputs the zero
point return request when not in the READY state.
•
When the drive unit is inoperable, such as if an error occurs in the drive
unit's control power, this signal will turn OFF.
•
If this signal turns OFF during positioning, the system will stop. The
system will not start even if this signal is turned ON again.
•
When this signal turns OFF, the zero point return complete signal will
also turn OFF.
Deviation counter clear 5
•
Output during machine zero point return. (Note that this signal is not
output during the count method 2).)
(Example) When carry out machine zero point return with stopper stop
method 2)
CLEAR
10ms
Pr.48
Speed
Stopper
Time
Near-point dog
After feed pulse output stop
Zero point signal
Pr.49
Zero point return speed
Creep speed
OFF
ON
OFF
ON
•
The deviation counter clear is output for approx. 10ms.
•
When the AD75 turns this signal ON, the drive unit uses this signal to
reset the droop pulse amount in the internal deviation counter.
(Note) The deviation counter clear is a signal output by the AD75 during
machine zero point return. It cannot be output randomly by the
user.
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