3.8 I/O Signals
A3-132
ME0384-4A
(7) Pressing operation commanded torque level detection
It is a signal dedicated for the high-thrust actuator that possesses the stepper motor
specification (PCF Type). It should be used as a reference for output when it is used for an
actuator other than the motor specification high-thrust type.
This is a feature to detect that specified load is applied on an actuator by checking the torque by
the loaded current during the press-fitting operation when press-fitting is performed with the
pressing operation. As no load is applied when there is no press-fitting resistance applied, it is
available to generate an alarm from PLC to alert that press-fitting is not being performed in
normal condition.
The load output judgment status (LOAD) gets turned on when the pressing current exceeds the
current value [%] set in “Threshold” in the position data for the period of time set as judgment
time
(Note 1)
in the pressing operation range (excluding the approach motion range) and also in
the range set as [Position Zone] in the position data.
It would not turn off even after the load is removed and current falls. It will turn off at the next
movement command or alarm reset.
Note 1: It is to be set in Parameter No. 50 “Load output judgment time”. (Initial value: 255ms)
Stepper motor specification function only
ush
125ms – 5ms + 135ms ≥ 255ms
(Note 2)
LOAD output
Pressing current drops
below threshold
Turns on in position
zone setting range
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