Omron RX - 2, Руководство пользователя

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8 Applied Settings
High-function General-purpose Inverter RX2 Series User’s Manual
8
-4 Co
n
tr
o
l Fu
n
ction
8
8-4
-9
A
bsolute Position C
ontrol
The direction of the operation command(FW, RV) in the absolute position control mode does not have a
meaning as the rotation direction. They behave as the signals for operating/stopping. The rotation
direction specifies the forward rotation if (target position - current position) is plus and the reverse rota-
tion if minus.
When the zero return operation (as discussed later) is not performed, if the [AE-61] current position
memory at power-off is 00, the position at power-on is treated as the origin (position = 0). •If the [AE-61]
is 01, the position at the previous power-off is treated as the (position = 0).
When the deviation between the position command and current position is 0, if the operation command
is turned on, the positioning operation is performed immediately.
The current position command can be monitored with the [FA-20] position command monitor.
Precautions for Correct Use
• For using this function, set the [AA121] control method to 10 (vector control with sensor, and
set the [AA123] vector control mode selection to 02: absolute position control or 03: high res-
olution absolute position control.
• This function requires using the encoder feedback
• See also
7-2-16 Encoder Feedback Control on page 7-37.
• When the [AA123] vector control mode selection is set to 03: high resolution absolute posi-
tion control, the control is performed with the 4 multiplication number of pulses used for the
internal calculation.
(Set the multistage position command and position range designation with the 4 multiplica-
tion accuracy.)
• The position command can be switched at a maximum of 16 stages in combination of the
input terminals.
• The trip reset or reset signal input does not clear the current position monitor.
• When the PCLR terminal is assigned, turning on the PCLR terminal clears the current posi-
tion monitor.
• In the absolute position control mode, the ATR terminal is disabled. (The torque control does
not operate.)
• In the absolute position control mode, the STAT terminal is disabled. (The pulse train position
control does not operate.)
• When the absolute position control is enabled (AA123=02, 03), the orientation function is dis-
abled.
ON
ON
When the position command is
small, there is the deceleration
and then positioning without
reaching the speed command.
[AE-04] Positioning completion range
setting
[AE-05] Positioning completion delay time
Position
Operation command
Output frequency
(Hz)
Output signal
[POK]
Speed
command