General-Purpose AC Servo
Battery for Junction Battery Cable
Model
MR-BAT6V1BJ
Installation Guide
D
CAUTION
This product is only for MR J4 servo amplifiers. This is not available with other servo
amplifiers.
To avoid deleting data, replace an MR-BAT6V1BJ according to procedures written in this
installation guide.
This product is compatible only with HG series servo motors.
When replacing an MR-BAT6V1BJ, use new one.
Check that the new MR-BAT6V1BJ is within its estimated life.
The battery built in MR-BAT6V1BJ cannot be replaced. Do not disassemble the MR-
BAT6V1BJ. Otherwise, it may cause a malfunction.
1. INTRODUCTION
This product is only for MR J4 servo amplifiers. This is not available with other servo amplifiers.
Using MR-BAT6V1BJ battery for junction battery cable enables you to keep the absolute position data recorded in
the encoder even if the servo amplifier is removed from machine.
2. SPECIFICATIONS
Item Description
System
Electronic battery backup type
Model
MR-BAT6V1BJ
Battery pack
2CR17335A (primary lithium battery)
Nominal voltage
[V]
6
Nominal capacity
[mAh]
1650
(Note) Battery life
5 years from date of manufacture
Maximum number of connectable axes
1
Note.
Quality of the batteries degrades by the storage condition. The battery life is 5 years from the production date regardless of the
connection status.
Production year and month are indicated in a serial number (SERIAL) on the rating plate. The second digit from left in the number
indicates the first digit of the year, The third digit from left indicates a month (Oct: X, Nov: Y, Dec.: Z). For November 2013, the serial
is like, "SERIAL: _ 3Y _ _ _ _ _ _".
3. Parts identification
Orange: Connector for servo amplifier
Black: Connector for branch cable
Case
4. Configuration
4.1 Mounting
(1) Wire the product using the MR-BT6VCBL03M junction battery cable as follows.
(2) After wiring, startup the absolute position detection system. Even if the connector for branch cable
connection (black) is not connected to the MR-BT6VCBL03M junction battery cable, an alarm will not occur.
Check that they are connected securely.
(3) When you transport a servo amplifier and machine apart, disconnect only CN2 and CN4 of the servo
amplifier. When other connectors or cables are disconnected, the absolute position data will be deleted.
CN2
CN4
Servo amplifier
MR-J4-A(-RJ)
MR-J4-B(-RJ)
Orange: Connector for servo amplifier
Black: Connector for branch cable
Encoder cable
HG series servo motors
MR-BT6VCBL03M
MR-BAT6V1BJ
4.2 How to replace MR-BAT6V1BJ
4.2.1 Preparation
Prepare a new MR-BAT6V1BJ as follows.
Model
Number and Use
Remark
MR-BAT6V1BJ
1 for replacement
Battery within two years from the production date.
4.2.2 Procedures
Replace the product as follows regardless of on/off of the control circuit power supply. When it is replaced with
other procedures, the absolute position data will be erased.
(1) Remove the connector for branch cable connection
(black) of the old MR-BAT6V1BJ.
MR-BT6VCBL03M
CN4
CN2
Servo amplifier
Old MR-BAT6V1BJ
New MR-BAT6V1BJ
(2) Connect the connector for branch cable connection
(black) of the new MR-BAT6V1BJ.
MR-BT6VCBL03M
CN4
CN2
Servo amplifier
Old MR-BAT6V1BJ
New MR-BAT6V1BJ
(3) Remove the connector for servo amplifier (orange) of
the old MR-BAT6V1BJ.
When the control circuit power supply is on, performing
(3) without [AL. 9F.2 Battery degradation warning] will
trigger [AL. 9F.2].
MR-BT6VCBL03M
CN4
CN2
Servo amplifier
Old MR-BAT6V1BJ
New MR-BAT6V1BJ
(4) Remove the old MR-BAT6V1BJ from servo amplifier
and mount the new MR-BAT6V1BJ.
When the control circuit power supply is on, [AL. 9F.2]
will occur after (3).
MR-BT6VCBL03M
CN4
CN2
Servo amplifier
New MR-BAT6V1BJ
Old MR-BAT6V1BJ
(5) Mount the connector for servo amplifier (orange) of the
new MR-BAT6V1BJ.
When the control circuit power supply is on, [AL. 9F.2]
will be canceled.
MR-BT6VCBL03M
CN4
CN2
Servo amplifier
New MR-BAT6V1BJ
4.3 Troubleshooting
The following shows warnings and alarms which are triggered with power on of the servo amplifier when the wiring
of the battery for the junction battery cable is incorrect. When you do not solve a problem even after doing the
following actions, refer to troubleshooting of each servo amplifier instruction manual.
Display Name
Cause
Action
AL. 9F
Battery warning
1. MR-BAT6V1BJ is not connected to CN4.
Connect MR-BAT6V1BJ to CN4.
2. Battery voltage dropped.
Replace MR-BAT6V1BJ.
AL. 92
Battery cable
disconnection
warning
1. Battery voltage dropped.
Replace MR-BAT6V1BJ.
2. MR-BAT6V1BJ is not connected to CN4 or
MR-BT6VCBL03M.
Connect MR-BAT6V1BJ to CN4 and MR-
BT6VCBL03M.
AL. 25
Absolute position
erased
1. The power was turned off while MR-
BAT6V1BJ was not connected to CN4 or
MR-BT6VCBL03M.
Connect MR-BAT6V1BJ to CN4 and MR-
BT6VCBL03M.
2. The servo amplifier was removed from
machine while MR-BAT6V1BJ was not
connected to MR-BT6VCBL03M.
Connect MR-BAT6V1BJ to MR-
BT6VCBL03M.
3. MR-BT6VCBL03M was not connected to
an encoder cable.
Connect the MR-BT6VCBL03M to the
encoder cable.
4.4 Precautions for using
(1) The connector for servo amplifier connection (orange) has a lock release lever. When removing the
connector, pull out the connector while pressing the lock release lever.
(2) The connector servo amplifier connection (orange) and the connector for branch cable connection (black)
are different in color and shape due to different output voltage. Incorrect connection can cause the machine
to be damaged.
(3) When a cable is cut or shorted due to load or being caught, the built-in battery will have high temperature.
Do not disassemble the MR-BAT6V1BJ to prevent getting burnt.
5. DIMENSIONS
[Unit: mm]
34.8
69.3
38.5
Rating plate
Mass: 66 [g]
6. Battery transportation
When only lithium metal batteries are transported, attachment of a handling label to each package, submission of
the Shipper's Declaration for Dangerous Goods, and a 1.2 m drop test will be required. When the batteries are
transported with mounted on products, the regulations about package, etc. will not be required.
MITSUBISHI ELECTRIC CORPORATION
HEAD OFFICE: TOKYO BLDG MARUNOUCHI TOKYO 100-8310
IB(NA)0300213ENG-D(1702)MEE
This guide uses recycled paper.
Printed in Japan
Specifications are subject to change without notice.
