IAI America REXT - Manual (Page 116)


Part 1 Specification
Chapter 3 Gateway R unit
Part  Specification
() Torque level (TRQS) PLC Input Signal Dedicated Function for RPCON
This signal is available only in the pressing operation.
When the motor current reaches the load threshold during the pressing operation (moving up to the positioning
width), this signal is turned “ON”.
Because the current level is monitored, when the current level is changed, this signal is turned “ON”.
The speed available for the pressing varies depends on the motor and leads, it is required to adjust the
parameters.
Position where the actuator is pushed against the
work and the pressing completion is judged so
the positioning completion signal is turned "ON"
Range where the TRQS signal is output.
Positioning width (Max. pressing level)
Target position
Movement
distance
Velocity
• Set the pressing speed using the parameter No.  “Pressing Speed”.
When the machine is delivered, it has been individually set depending on the actuator characteristics.
Set an appropriate speed considering the work material and shape.
• Set the parameter No. 0 “Load Output Judgment Time Period”.
• Set the parameter No.  “Torque Inspected Range” to “” (disable).
• Set the threshold using the PLC's Load Current Threshold Register.
• Set the positioning width using the PLC's Positioning Width Register.
Set it a bit longer from the backmost position considering the mechanical dispersion of the work.
Warning: • If the actuator pushes against the work before the target position, it is regarded as a servo-
motor error.
Take care of the positional relationship between the target position and the work position.
• The actuator continues to push the work with the pressing current at the stop time decided
with the current limit value.
It is not the stop condition, so take the greatest care to deal with it.
() Movement command complete (MEND) PLC Input Signal
They are all set to “0” (OFF) when the power is turned ON and while in operation.
It turns OFF when servo is “0” (OFF) or at an emergency stop.
They turn to “” (ON) when pressing is complete, and even when the pressing operation was missed.
Output would not be made when CSTR signal is ON.
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