IAI America CON-PG - Manual (Page 179)

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7. Operation of MEC Controllers
[Auto motor power (servo) OFF]
The motor power (servo) will turn off automatically upon elapse of a specified period after completion
of positioning. When the next positioning command is issued, the motor power (servo) turns on
automatically and positioning is performed. Since no holding current flows while the motor is at
standstill, power consumption can be reduced.
[Statuses of position detection output signals when the push function is not used]
Even when the motor power (servo) is turned off, as long as the actuator is positioned within the
positioning band (parameter No. 1) the start point detection signal (LS0), end point detection signal
(LS1) or intermediate point detection signal (LS2) will turn ON according to the applicable position,
just like when a sensor is used. Accordingly, the position detection signal that has turned ON will
remain ON after completion of positioning unless the actuator moves.
[Status of position complete signals when the push function is used]
In push-motion operation, the motor power (servo) does not turn off automatically while the actuator
is pushing the load.
If the actuator has missed the load, the motor power (servo) turns off automatically.
Once the motor power (servo) turns off, a position complete status is lost. Accordingly, the push
complete signal 0 (PE0), push complete signal 1 (PE1) and push complete signal 2 (PE2) will all turn
OFF regardless of the stop position.
No holding torque is applied in the auto servo OFF mode. Since the actuator will move in this condition
if an external force is applied, pay due attention to contact and safety when setting any operation
involving auto motor power (servo) OFF.
Caution
Move signal 1 (ST0)
Move signal 2 (ST1)
Actuator movement
Servo status
Auto servo OFF mode
(A green LED blinks)
T: Time set by parameter No
Do not use
push function
Start point detection (LS0)
End point detection (LS1)
Intermediate point detection (LS2)
Use push
function
Positioning to start point complete (PE0)
Positioning to end point complete (PE1)
Positioning to intermediate point complete
(PE2)