Mitsumi electronic MR-J3- A Manual De Usuario
14 - 4
14. ABSOLUTE POSITION DETECTION SYSTEM
14.3 Battery replacement procedure
WARNING
Before replacement a battery, turn off the main circuit power and wait for 15
minutes or longer (20 minutes for 30kW or higher) until the charge lamp turns off.
Then, check the voltage between P( ) and N( ) with a voltage tester or others.
Otherwise, an electric shock may occur. In addition, always confirm from the front
of the servo amplifier whether the charge lamp is off or not.
minutes or longer (20 minutes for 30kW or higher) until the charge lamp turns off.
Then, check the voltage between P( ) and N( ) with a voltage tester or others.
Otherwise, an electric shock may occur. In addition, always confirm from the front
of the servo amplifier whether the charge lamp is off or not.
POINT
The internal circuits of the servo amplifier may be damaged by static electricity.
Always take the following precautions.
Ground human body and work bench.
Do not touch the conductive areas, such as connector pins and electrical parts,
Do not touch the conductive areas, such as connector pins and electrical parts,
directly by hand.
14.3.1 When replacing battery with the control circuit power ON
POINT
Replacing battery with the control circuit power OFF will erase the absolute
position data.
Replacing battery with the control circuit power ON will not erase the absolute position data. Refer to section
14.4 for installation procedure of battery to the servo amplifier. To replace battery with the control circuit power
OFF, refer to section 14.3.2.
14.3.2 When replacing battery with the control circuit power OFF
Replacing battery with the control circuit power OFF will erase the absolute position data, but battery can be
replaced without erasing the absolute position data in the following procedure. In this procedure, MR-
J3BTCBL03M battery connection cable is required. MR-J3BTCBL03M cannot be added after home position is
set. Make sure to connect MR-J3BTCBL03M between the servo amplifier and the encoder cable when setting
up the encoder cable. Refer to section 14.5 for the replacement procedure of the battery.
replaced without erasing the absolute position data in the following procedure. In this procedure, MR-
J3BTCBL03M battery connection cable is required. MR-J3BTCBL03M cannot be added after home position is
set. Make sure to connect MR-J3BTCBL03M between the servo amplifier and the encoder cable when setting
up the encoder cable. Refer to section 14.5 for the replacement procedure of the battery.
(Note)
MR-J3BTCBL03M
Encoder cable
Servo motor
MR-J3BAT
CN4
CN2
Servo amplifier
Note. Make sure to install MR-J3BTCBL03M when setting up the encoder cable.