Omron 3G3AX-PG, Руководство пользователя

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4-13
4-3 Pulse Train Position Control Mode
4
Functions
(1) When the RUN command is turned ON with the ORT terminal turned ON, the Inverter accelerates to the orientation
speed (P015), and then performs constant speed operation.
(If the RUN command is input during operation, the operation speed changes to the orientation speed when the ORT
terminal is turned ON.)
(2) After the orientation speed is reached, the Inverter shifts to the position control mode when the first Z-pulse is
detected.
(3) During forward run, position control is performed with a target value of “Orientation stop position (P014) + one
rotation”; During reverse run, with a target value of “Orientation stop position (P014) + two rotations”.
In this step, the higher the position loop gain (P023), the shorter the deceleration time (regardless of the deceleration
time setting).
(4) After the remaining number of pulses reaches the position ready range setting (P017), the Inverter outputs the POK
signal after the position ready delay time setting (P018) elapses. (The POK output remains until the ORT signal is
turned OFF.)
After positioning is completed, the servo lock status remains until the RUN command is turned OFF.
Note 1: Do not set a high frequency for the orientation speed, because positioning must be completed within two
rotations during deceleration. Otherwise, an overvoltage trip may occur.
C001 to C008
Multi-function inputs 1 to 8
selection
45: ORT (orientation)
−
−
C021 to C025
Multi-function output
terminal selection
23: POK (position ready)
−
C026
Relay output (MA, MB)
function selection
05
Parameter No. Function name Data Default setting Unit
RUN commands (FW/RV)
ORT terminal
Z pulse
Output
frequency
Orientation speed setting (P015)
ON
ON
ON
POK signal
Position ready range setting (P017)
Position ready delay time setting
(P018)
Speed control Position control
(1)
(2)
(3)
(4)
(Position ready)