Fuji Electric ALPHA7, User Manual

Page: 102 / 662

CHAPTER 2 WIRING
Description of I/O Signals
2-55
2
Teaching: Sequence input signal (Reference value 35)
The current position of the servomotor is written as position data in the positioning data.
 Function
The current command position of the servomotor is written as position data in the positioning data
at the activating edge of the teaching signal. The status (position command status) is ABS
(absolute position).
The signal can be always executed without relations to the status of the forced stop and servo-on
signals.
You can check the over write completion signal, one of sequence output signals, to check if
overwriting of the current position is completed.
Teaching is executed generally according to the following procedure.
(1) Specify the positioning data address to which the current position is to be written in the AD0 to
AD3 range.
(2) Using the manual operation, pulse operation or the like, pulse operation or the like, feed the
mechanical system to the target position.
(3) The current command position is written as position data in the positioning data at the
activating edge of the teaching signal. When the teaching signal is turned off, the over write
completion signal is turned off, too.
 Parameter setting
To assign the teaching to a sequence input terminal, specify the corresponding value ("35") to the
input terminal function setting parameter.
This signal is handled to be always turned off if it is not assigned to the sequence input terminal.
OFF
Over write
completion
OFF
Teaching