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5. ABSOLUTE POSITION DETECTION SYSTEM
(1) Specifications
Item
System
Battery
Encoder resolution
Maximum revolution range
(Note 1) Maximum speed at power
failure
(Note 2) Battery backup time
(Note 3) Data holding time during
battery replacement
Battery storage period
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.
3. Period during which data can be held by the super capacitor in the encoder after power-off,
with the battery voltage low or the battery removed, or during which data can be held with the
encoder cable disconnected. Battery replacement should be finished within this period.
(2) Structure
1) Components
Component
Servo amplifier
Servo motor
Battery
Encoder cable
Bus cable
Servo system controller 273UH/171S/Model W/AD75M
1 piece of lithium battery (primary battery, nominal
Description
Use standard models.
MR-BAT or A6BAT
Use a standard model.
When fabricating, refer to (2), Section 6-1-2.
Use MR-J2HBUS
M-A/MR-J2HBUS
Description
Electronic battery backup system
Type: MR-BAT or A6BAT
Refer to (2) in Section 10-1.
Home position
Approx. 10,000 hours (battery life with power off)
2 hours at delivery, 1 hour in 5 years after delivery
5 years from date of manufacture
M.
5 - 1
32767 rev.
500r/min
3.6V)
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