Omron 3G3RX - Zero Return Function

4-141
4-3 Functions When PG Option Board (3G3AX-PG01) Is Used
4
Functions
Zero Return Function
This function performs three types of zero return operations depending on the setting of zero return
mode P068. When zero return is complete, the current position is cleared to zero.
You can select the zero return direction in zero return direction selection P069.
If zero return is not performed, the Inverter performs position control with the position at power-on
defined as the origin.
(1) The Inverter accelerates to the low-
speed zero return frequency
according to the acceleration time
setting.
(2) The Inverter runs at the low-speed
zero return speed.
(3) The Inverter performs positioning
when the ORL signal is input.
(1) The Inverter accelerates to the high-
speed zero return frequency
according to the acceleration time
setting.
(2) The Inverter runs at the high-speed
zero return frequency.
(3) The Inverter starts deceleration when
the ORL signal is turned on.
(4) The Inverter runs in reverse at the
low-speed zero return frequency.
(5) The Inverter performs positioning
when the ORL signal is turned off.
(1) The Inverter accelerates to the high-
speed zero return frequency
according to the acceleration time
setting.
(2) The Inverter runs at the high-speed
zero return frequency.
(3) The Inverter starts deceleration when
the ORL signal is turned on.
(4) The Inverter runs in reverse at the
low-speed zero return frequency.
(5) The Inverter starts deceleration when
the ORL signal is turned off.
(6) The Inverter runs forward at the low-
speed zero return frequency.
(7) The Inverter performs positioning at
the first Z-pulse position after the
ORL signal is turned on.
<Low-speed zero return (P068 = 00)>
ORG terminal
ORL terminal
ON
ON
(1)
(2)
(3)
Low-speed zero return
frequency (P070)
Output
frequency
Position
Origin
<High-speed zero return 1 (P068 = 01)>
ON
ON
(1)
(2)
(3)
(4)
(5)
High-speed zero return
frequency (P071)
Low-speed zero return
frequency (P070)
Position
Output
frequency
Origin
ORL terminal
ORG terminal
<High-speed zero return 2 (P068 = 02)>
ON
ON
(1)
(2)
(3)
(4)
(5)
High-speed zero return
frequency (P071)
Low-speed zero return
frequency (P071)
Z pulse
(6)
(7)
Low-speed zero return
frequency (P070)
Position
Output
frequency
Origin
ORG terminal
ORL terminal