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12. ABSOLUTE POSITION DETECTION SYSTEM
12.2 Specifications
POINT
Replace the battery with only the control circuit power ON. Removal of the battery
with the control circuit power OFF will erase the absolute position data.
(1) Specification list
Item Description
System Electronic battery backup system
Battery
1 piece of lithium battery ( primary battery, nominal
3.6V)
Type: MR-J3BAT
Maximum revolution range Home position 32767 rev.
(Note 1) Maximum speed at power failure 3000r/min
(Note 2) Battery backup time Approx. 10,000 hours (battery life with power off)
Battery storage period 5 years from date of manufacture
Note 1. Maximum speed available when the shaft is rotated by external force at the time of power failure or the like.
2. Time to hold data by a battery with power off. It is recommended to replace the battery in three years independently of
whether power is kept on or off.
(2) Configuration
Servo motor
Servo amplifier
CN1 CN2
Battery
(MR-J3BAT)
CN4
Servo system controller
(3) Parameter setting
Set "
1" in parameter No.PA03 to make the absolute position detection system valid.
Absolute position detection system selection
0: Used in incremental system
1: Used in absolute position detection system
Parameter No.PA03