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15. ABSOLUTE POSITION DETECTION SYSTEM
15.2 Specifications(1) Specification list
Item Description
System Electronic battery backup system
Battery 1 piece of lithium battery ( primary battery, nominal 3.6V)
Type: MR-BAT or A6BAT
Maximum revolution range Home position 32767 rev.
(Note 1) Maximum speed at power failure 500r/min
(Note 2) Battery backup time Approx. 10,000 hours (battery life with power off)
(Note 3) Data holding time during battery
replacement 2 hours at delivery, 1 hour in 5 years after delivery
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.
3. Period during which data can be held by the super capaci tor in the encoder after power-off, with the
battery voltage low or the battery removed, or durin g which data can be held with the encoder cable
disconnected.
Battery replacement should be finished within this period.
(2) General-purpose programmable c ontroller
Positioning module I/O module
AD71 AD71S2 AD71S7
A1SD71S2 A1SD71S7
AD75
A1SD75
AX40 41 42
AY40 41 42
FX-1PG FX-1GM
FX(E)-20GM FX-10GM FX2-32MT
CN1A
CN1B
CON1
Servo motor
CN2
AD75 etc.
I/O
Programmable controller Servo amplifier
Battery (MR-BAT)
(3) Parameter settingSet " 1 " in parameter No.1 to make the absolute posit ion detection system valid.
1
Selection of absolute position detection system
0: Incremental system
1: Absolute position detection system
Parameter No. 1