Omron MX2 Series User Manual page 312

6 Vector Control and Applied Functions
Parameter
No.
Position Control Mode
P075
Selection
Pulse Train Input EA
P003
Selection
P083 Preset Position Data
Multi-function Input 1 to
C001 to
C007
7 Selection
*1. The digit shift display mode can be used.
Position Data Storage at Power Shutoff
The position data storage at power shutoff function enables the inverter to store the data of the Current
Position Monitor (d030) into the EEPROM at power shutoff so that the data can be set in the Current
Position Monitor at the next power-on.
This allows you to use the origin position once established by the origin search function continuously
even after turning on the power supply again.
However, to use this function, observe the following precautions:
• To store the Current Position Monitor data at power shutoff, set the Position Store Selection at Power
Off (P081) to 01 (Store).
• The position data storage at power shutoff function stores the position data into the Position Data at
Power Off (P082) when the power supply is shut off. This data will be set in the Current Position Mon-
itor at the next power-on.
Although you can set data in the Position Data at Power Off (P082), the operation is ineffective
because it will be overwritten at the next power shutoff.
• If the motor rotates when the power supply is shut off, the inverter cannot recognize the rotation
amount, which causes position error.
Take measures to prevent motor rotation at power shutoff, for example, by using the brake.
If the motor rotated after power shutoff, perform origin search operation to establish the origin in
advance.
• Even if the brake is applied at power shutoff, the position error may occur due to backlash. Because
this positional error is accumulated, perform origin search once per several startups to eliminate it.
Parameter
No.
Position Store Selection at
P081
Power Off
P082 Position Data at Power Off
*1. The digit shift display mode can be used.
6 - 44
Function name
00:
01:
Position Limit Setting (Reverse Side) (P073)
to Position Limit Setting (Forward Side)
(P072) (1 multiplication)
91:
Function name
00:
01:
Position Limit Setting (Reverse Side) (P073)
to Position Limit Setting (Forward Side)
(P072) (1 multiplication)
Multi-function Compact Inverter 3G3MX2-EV2 User's Manual (I666-E1)
Data
Limit
Feedback pulse (Enabled only when
1st control is selected)
*1
PSET (Preset position)
Data
Not store
Store
*1
Default
Unit
data
−
00
−
00
0 pulse
− −
Default
Unit
data
−
00
0 pulse