Mitsubishi MR-J4-10A Instruction Manual page 430

12. ABSOLUTE POSITION DETECTION SYSTEM
(2) Specifications
(a) Specification list
System
Battery
Maximum revolution range
(Note 1)
Maximum speed at power
failure [r/min]
(Note 2)
Battery backup time
(Note 3) Battery life
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.
Item
Model
Battery pack
Nominal voltage
Nominal capacity [mAh]
Storage temperature
Operating temperature
Amount of lithium metal
Mercury content
Dangerous goods class
Operating humidity and storage
humidity
Mass
Rotary servo motor
Direct drive motor
Rotary servo motor
Direct drive motor
Servo amplifier
CN2
CN4
MR-BAT6V1SET
Electronic battery backup type
2CR17335A (primary lithium battery)
[V]
[°C]
[°C]
[g]
(Battery pack containing 2 g or less lithium)
90 %RH or less (non-condensing)
[g]
Home position ± 32767 rev.
(only when acceleration time until 6000 r/min is 0.2 s or more)
(only when acceleration time until 500 r/min is 0.1 s or more)
Approximately 20,000 hours (equipment power supply: off, ambient
Approximately 29,000 hours (power-on time ratio: 25%, ambient
temperature: 20 °C) (Note 4)
Approximately 5,000 hours (equipment power supply: off, ambient
Approximately 15,000 hours (power-on time ratio: 25%, ambient
temperature: 20 °C) (Note 4)
5 years from date of manufacture
Encoder cable
Servo motor
12 - 5
Description
MR-BAT6V1SET
6
1650
0 to 55
0 to 55
1.2
Less than 1 ppm
Inapplicable to Class 9
34
6000
500
temperature: 20 °C)
temperature: 20 °C)