12. ABSOLUTE POSITION DETECTION SYSTEM
12 - 5
(2) Specifications
(a) Specification list
Item Description
System Electronic battery backup type
Battery Model MR-BAT6V1SET
Battery pack 2CR17335A (primary lithium battery)
Nominal voltage [V] 6
Nominal capacity [mAh] 1650
Storage temperature [°C] 0 to 55
Operating temperature [°C] 0 to 55
Amount of lithium metal [g] 1.2
Mercury content Less than 1 ppm
Dangerous goods class
Inapplicable to Class 9
(Battery pack containing 2 g or less lithium)
Operating humidity and storage
humidity
90 %RH or less (non-condensing)
Mass [g] 34
Maximum revolution range Home position ± 32767 rev.
Rotary servo motor
6000
(only when acceleration time until 6000 r/min is 0.2 s or more)
(Note 1)
Maximum speed at power
failure [r/min]
Direct drive motor
500
(only when acceleration time until 500 r/min is 0.1 s or more)
Rotary servo motor
Approximately 20,000 hours (equipment power supply: off, ambient
temperature: 20 °C)
Approximately 29,000 hours (power-on time ratio: 25%, ambient
temperature: 20 °C) (Note 4)
(Note 2)
Battery backup time
Direct drive motor
Approximately 5,000 hours (equipment power supply: off, ambient
temperature: 20 °C)
Approximately 15,000 hours (power-on time ratio: 25%, ambient
temperature: 20 °C) (Note 4)
(Note 3) Battery life 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. Also, if power is
switched on at the servo motor speed of 3000 r/min or higher, position mismatch may occur due to external force or the like.
2. The data-holding time by the MR-BAT6V1SET battery. Replace the batteries within three years since the operation start
regardless of the power supply of the servo amplifier on/off. If the battery is used out of specification, [AL. 25 Absolute position
erased] may occur.
3. Quality of the batteries degrades by the storage condition. The battery life is 5 years from the production date regardless of the
connection status.
4. The power-on time ratio 25% is equivalent to 8 hours power on for a weekday and off for a weekend.
(b) Battery mounting
Connect as follows.
CN2
CN4
Servo amplifier
Encoder cable
Servo motor
MR-BAT6V1SET
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