Battery - Mitsubishi Electric MR-J4-TM Instruction Manual

12. ABSOLUTE POSITION DETECTION SYSTEM

12.2 Battery

12.2.1 Using MR-BAT6V1SET-A battery
(1) Configuration diagram
Controller
(2) Specifications
(a) Specification list
System
Maximum revolution range
(Note 1)
Maximum speed at power
failure [r/min]
(Note 2)
Battery backup time
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 battery using MR-BAT6V1SET-A. 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. The power-on time ratio 25% is equivalent to 8 hours power on for a weekday and off for a weekend.
Command
position
Servo motor
Cumulative revolution counter
(1 pulse/rev)
One-revolution counter
Item
Rotary servo motor
Direct drive motor
Rotary servo motor
Direct drive motor
Home position data
EEP-ROM memory
LSO
1XO
Backup at
power off
Step-down
circuit
(6 V → 3.4 V)
MR-BAT6V1SET-A
Electronic battery backup type
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 temperature: 20 ˚C)
Approximately 29,000 hours
(power-on time ratio: 25%, ambient temperature: 20 °C) (Note 3)
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 3)
12 - 3
Servo amplifier
Current
position
LS 1X
Detecting the Det
ecting the
number of
position within
revolutions
one revolution
High speed
serial
communication
Description
6000
500