IAI America MSEP - Manual (Page 164)

3.8 I/O Signal Controls and Function
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(17) Push direction specification (DIR) PLC Output Signal
This signal specifies the pressing direction.
When this signal is turned “OFF”, the pressing operation is performed to the direction of the
value determined by adding the positioning width to the target position.
Pressing operation starts towards the position where the positioning width is added to the target
position if this signal is turned ON.
When the normal positioning operation or SEP method pressing operation is selected, this
signal is ineffective.
Speed
Movement
distance
Positioning width Positioning width Positioning width
DIR = OFF DIR = ON Target position
(18) Pressing and a miss (PSFL) PLC Input Signal
In the case that the pressing operation was performed, and the actuator moved the travel
distance set in the controller position table positioning width or set using the PLC’s positioning
width register, but it was not pushed against the work, this signal is turned “ON”.
(19) Positioning completion signal (MEND) PLC Input Signal
This signal turns ON when the actuator has moved to the target position and reached the
positioning width or finished pressing operation (complete or pressing error).
Caution: When the servo-motor is turned OFF or stopped in an emergency while the actuator
is stopped at the target position, the MEND signal is turned “OFF” temporarily.
The signal will not be turned ON even in the next time the servo turns back ON.
When the positioning is completed with the CSTR signal turned “ON”, the MEND
signal is not turned “ON”.
(20) Light error alarm (ALML) PLC Input Signal
This signal turns ON when a message level alarm is generated.
For the message level alarm, refer to the section for the troubleshooting.