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7 ABSOLUTE POSITION DETECTION SYSTEM
7.2 Battery-less/battery
7.2 Battery-less/battery
Connecting the battery-less encoder
The following shows an example of battery-less encoder connection.
System architecture
Specification list
*1 Maximum speed available when the shaft is rotated by external force at the time of power failure. Also, if power is switched on when the
servo motor is rotated by an external force at a speed of 3000 r/min or higher, position mismatch may occur.
Item Description
System Electronic, battery backup type
Maximum revolution range Home position ± 32767 rev
Maximum speed at power failure
[r/min]
*1
Rotary servo motor manufactured by
Mitsubishi Electric
8000
(only when the acceleration/deceleration time until 8000 r/min is 0.2 s or
longer)
LSO
1XO
Controller Servo amplifier
Home position data
Command
position
Current position
Backup at
power off
Control
1X
Detecting the
position within
one revolution
LS
Detecting the
number of
revolutions
Servo motor
Cumulative revolution counter
(1 pulse/rev)
High speed
serial
communication
One-revolution counter
Non-volatile memory
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