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Chapter 13 Control Sub Functions
13.6 Absolute position system
The Simple Motion module can construct an absolute position system.
The following describes precautions when constructing the absolute position system.
Servomotor
Servo amplifier
Position command
Control command
Servo parameter
Simple Motion
module
Monitor data
PLC
CPU
HP
address
M
Back-up
Return of the
resent value
Battery
Position command
Control command
Servo parameter
Monitor data
Encoder
Fig. 13.35 Configuration of absolute position system
[1] Setting for absolute positions
For constructing an absolute position system, use a servo amplifier and a
servomotor which enable absolute position detection.
It is also necessary to install a battery for retaining the location of the HPR in the
servo amplifier.
To use the absolute position system, set "1: Enabled (absolute position detection
system)" for the parameter shown in the following table.
Servo series Parameter Buffer memory address
MR-J4-B
(For CC-Link IE Field Motion)
or MR-J4-GF
Absolute position
detection system (PA03)
–
In addition, select "0: Invalid" in "Absolute position counter warning (AL.E3)
selection (PC18)" for the MR-J4-GF.
Refer to each servo amplifier instruction manual for details of the absolute
position system.
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