4-21
4-4 Absolute Position/High-resolution Absolute Position Control Modes
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, when “71” (FOT) and “72” (ROT)
are allocated to any of multi-function inputs 1 to 8 (C001 to C008).
Position Range Specification Function
Set a forward/reverse position control range in position range specification (forward) P072 and po-
sition range specification (reverse) P073. If the current position counter exceeds this setting range,
the 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 is limited by this position range set-
ting.
(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 in a de-
sired 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-resolu-
tion 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 Inverter power circuit (R/L1, S/L2, T/L3) is turned off. Also, make sure
that the Inverter’s output (U/T1, V/T2, W/T3) is disconnected from the motor. Not doing so
may result in injury and/or damage to the equipment.
Related functions
C001 to C008, C012, C074
ORT terminal
RUN command
Output frequency
Position
ON
ON
Depends on the speed command selected.
Summary of Contents for 3G3AX-PG
Page 1: ...Cat No I564 E1 01 USER S MANUAL 3G3AX PG Encorder Feedback Board ...
Page 2: ......
Page 14: ...12 Contents ...
Page 15: ...Chapter 1 Overview 1 1 Overview 1 1 ...
Page 27: ...Chapter 3 Operation 3 1 Related Parameters 3 1 3 2 Precautions for Operation 3 8 ...
Page 65: ...Chapter 6 Specifications 6 1 Product Specifications 6 1 ...
Page 67: ......