Omron CS1W-MCH71 -, Руководство по эксплуатации

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ABS Encoder Origin Setting
Section 8-6
Execute ABS origin setting using the bit in the PC Interface Area.
• The absolute position setting value is stored in the system variable after
ABS origin setting is completed. It is possible to transfer the absolute
position setting value to another MC Unit through backup/restore opera-
tion using the CPU Unit’s memory card.
• The absolute position setting value can be referenced using IORD
instruction or the Support Tool. However, they cannot be edited directly.
Make sure to set the absolute position setting value using ABS origin set-
ting function.
• The addresses in the table below are for Axis 1:
Note (1) It is recommended to backup the contents of ABS origin setting in the
CPU Unit’s memory card after ABS origin setting is completed.
(2) Make sure to set the absolute position setting value correctly. Otherwise,
difference in values for positioning will occur between the MC Unit and
ABS encoder.
(3) Do not execute ABS origin setting at least for one second after the main
power supply for the Servo Driver or control power supply is turned ON.
Name Word Variable bit Name Description
Axis 1 Control Bit x+0 IW0440 10 Absolute Origin
Setting
0: Nil
1: Nil
↑
: Sets ABS encoder origin
↓
: Nil
Axis 2-32 Control
Bits x+1
-
x+31 IW0441
-
IW045F 10 The same as for Axis 1 The same as for Axis 1
Variable
address IORD
address
Classi-
fication
Name Description Unit Update timing
SW021E 310F Axis Axis 1 Status:
Absolute position
setting value 1:
Multi-turns The value of multi-turns of the
ABS encoder in ABS origin
setting Rotation At power ON,
At ABS origin setting
completion
SW021F
SW0220 3110 Axis Axis 1 Status:
Absolute position
setting value 2:
Initial incremental
pulses The number of initial incre-
mental pulses of the ABS
encoder in ABS origin setting Pulse At power ON,
At ABS origin setting
completion SW0221