Using Mr-Bat6V1Bj Battery For Junction Battery Cable - Mitsubishi Electric MELSERVO-J4 series Instruction Manual

12. ABSOLUTE POSITION DETECTION SYSTEM

12.2.2 Using MR-BAT6V1BJ battery for junction battery cable

(1) Configuration diagram
Servo system controller
Home position data
LS0
CYC0
(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-BAT6V1BJ battery for junction battery cable. 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.
Current position
Primary lithium battery
Servo motor
Cumulative revolution counter
One-revolution counter
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
Rotary servo motor
Servo amplifier
Position data
Step-down
circuit
(6 V 3.4 V)
Step-down circuit
MR-BAT6V1BJ
Battery
(1 pulse/rev)
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)
Approximately 20,000 hours (equipment power supply: off, ambient
Approximately 29,000 hours (power-on time ratio: 25%, ambient
temperature: 20 °C) (Note 4)
5 years from date of manufacture
12 - 7
LS CYC
Detecting the Detecting the
number of position at
revolutions one revolution
High speed
serial
communication
Description
MR-BAT6V1BJ
6
1650
0 to 55
0 to 55
1.2
Less than 1 ppm
Inapplicable to Class 9
66
6000
temperature: 20 °C)