Omron RX Series - Forward;Reverse Driving Stop and Position Limit Setting Functions

6 - 51
6 Vector Control
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
6-7 Absolute Position/High-resolution Absolute Position Control Mode
6
6-7-5 Forward/Reverse Driving Stop and Position Limit Setting Functions
Precautions for Correct UsePrecautions for Correct Use
The teaching function is available as long as the power is supplied to the power supply input
terminals Ro and To of the inverter control circuit. Because the current position counter is always
active, you can perform teaching by moving the workpiece via external equipment etc. At this
time, make sure that the power supply to the terminals (R/L1, S/L2, T/L3) of the inverter drive
circuit is shut off, or that the motor output terminals (U/T1, V/T2, W/T3) of the inverter is
disconnected from the motor. Not doing so may result in injury and/or damage to the equipment.
3 When the workpiece reached the target position, (with the PRG indicator lit,) press the
Enter key on the Digital Operator.
4 The current position is set in the position command source set in the Teaching Selection
(P074). Note that the P074 setting is not stored. It will be reset to 00 when the power
supply is turned off or when the inverter is reset.
• This function uses the limit switches installed at both machine edges of equipment to suppress
movement out of its allowable operating range.
• With the torque limit set to 10%, the movement on the forward side is suppressed when the terminal
FOT turns ON and the movement on the reverse side is suppressed when the terminal ROT turns
ON. At both ends of the machine edge, provide a mechanical mechanism such as a stopper.
• To use this function, set the Multi-function Input S1 to S8 Selection (C001 to C008) to 71 (FOT:
Forward driving stop) and 72 (ROT: Reverse driving stop) and connect the limit switches.
Value set in P074 Position command allocated
00 P060: Multi-step Position Command 0
01 P061: Multi-step Position Command 1
02 P062: Multi-step Position Command 2
03 P063: Multi-step Position Command 3
04 P064: Multi-step Position Command 4
05 P065: Multi-step Position Command 5
06 P066: Multi-step Position Command 6
07 P067: Multi-step Position Command 7
6-7-5 Forward/Reverse Driving Stop and Position Limit Setting Functions
Forward/Reverse Driving Stop Function (FOT/ROT)
Parameter No. Function name Data Default data Unit
C001 to C008
Multi-function Input S1 to
S8 Selection
71: FOT (Forward driving stop)
72: ROT (Reverse driving stop)
––