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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
6-7-2 Operation Sequences
• In the absolute position control mode, the direction of RUN command (FW or RV) does not mean the
rotating direction. It serves as a start or stop signal. The motor rotates in the forward or reverse
direction based on whether the result of the subtraction, Target position – Current position, is a
positive or negative value, respectively.
• Unless you perform origin search operation, the position in which the power supply is turned ON will
be regarded as the origin (position 0).
• If the position command value is 0, the inverter will be in a positioning completed state immediately
when the RUN command turns ON.
• Set the Reset Selection (C102) to 03 (Trip reset only).
When the Reset Selection (C102) is not set to 03, turning ON the reset terminal (or RESET key)
of the inverter causes the current position counter to be cleared. In this case, perform origin
search operation again.
• When the Multi-function Input S1 to S8 Selection (C001 to C008) is set to 47 (PCLR: Position
deviation clear), turning ON the terminal PCLR causes the current position counter to be cleared.
This also clears the internal position deviation counter simultaneously.
• In the absolute position/high-resolution absolute position control mode, 52 (ATR: Torque reference
input permission) is disabled, so torque control does not function.
• In the absolute position/high-resolution absolute position control mode, 48 (STAT: Pulse train position
command input permission) is disabled, so pulse train position control does not function.
• In the absolute position/high-resolution absolute position control mode, the orientation function is
disabled. However, the terminal ORT is used for teaching, as described later.
*1 The reset function does not initialize the internal data including position control settings.
Parameter No. Function name Data Default data Unit
C001 to C008
Multi-function Input S1 to
S8 Selection
47: PCLR (Position deviation clear)
48: STAT (Pulse train position command
input permission)
52: ATR (Torque reference input
permission)
––
C102 Reset Selection
03: Trip reset only
*1
02 –
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