4-142
4-3 Functions When PG Option Board (3G3AX-PG01) Is Used
4
Functions
Forward/Reverse Run Stop Function (FOT/ROT)
With a signal from the control range limit switch, this function prevents the Inverter from running out-
side the specified operation range.
The torque limit is set to 10% on the forward side when the FOT terminal is turned on, and on the
reverse side when the ROT terminal is turned on.
This function can be used as the limit switch at the machine end. To do so, allocate "71" (FOT) and
"72" (ROT) to any of multi-function inputs 1 to 8 (C001 to C008).
Position Range Setting Function
Set a forward/reverse position control range in position range setting (forward) P072 and position
range setting (reverse) P073. If the current position counter exceeds the setting range, a position
control range trip (E63.* or E73.*) occurs, and the Inverter goes into free-run status.
The upper limit setting of multi-step position commands 0 to 7 (P060 to P067) is limited by this con-
trol range setting.
(You cannot set a position command beyond the position range.)
Teaching Function
This function starts or stops the motor at a desired position and stores the current position as a po-
sition command in a desired position command area.
Allocate "45" (ORT) to any of multi-function inputs 1 to 8 (C001 to C008).
When V2 control mode selection P012 is set to "02" (absolute position control) or "03" (high-reso-
lution absolute position control), the relevant terminal serves as a teaching terminal.
<Teaching Procedure>
(1) In teaching selection P074, select the position command you want to set.
(2) Move the workpiece.
• Input the RUN command with the ORT terminal turned on. At this time, the speed command and
acceleration/deceleration time conform to the currently selected parameters.
* If the Inverter control circuit (Ro, To) is turned on, teaching is enabled.
The current position counter operates even if the workpiece is moved by an external device.
Teaching is therefore enabled even while the Inverter is stopped.
Note: Make sure that the power supplies (R/L1, S/L2, T/L3) for the Inverter power circuit are shut
off or that the Inverter's outputs (U/T1, V/T2, W/T3) are disconnected from the motor. Not
doing so may result in injury and/or damage to the equipment.
(3) When the target position is reached, press the Enter key on the Digital Operator. Press the key
on the data display screen (the PRG LED indicator is lit).
Related functions C001 to C008, P012, P074
ORT terminal
RUN command
Output frequency
Position
ON
ON
Depends on the speed command selected.
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