Epson RC620 Safety And Installation page 213

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Do not insert or pull out the motor connectors while the power to the
robot system is turned ON.
connectors with the power ON is extremely hazardous and may
result in serious bodily injury as the Manipulator may move
abnormally, and also may result in electric shock and/or malfunction
of the robot system.
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To shut off power to the robot system, pull out the power plug from
the power source. Be sure to connect the AC power cable to a
power receptacle. DO NOT connect it directly to a factory power
WARNING source.
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Before performing any replacement procedure, turn OFF the
Controller and related equipment, and then pull out the power plug
from the power source.
Performing any replacement procedure with the power ON is
extremely hazardous and may result in electric shock and/or
malfunction of the robot system.
Robot Controller
Before starting battery replacement, turn on the controller for approximately one
minute. Perform the replacement within 10 minutes to prevent data loss.
Make sure to use the designated lithium battery.
Manipulator
When the lithium battery power is low, an error will occur to warn the user about
the low battery status when the Controller is turned ON (when software is started
up).
When the error occurs, the position data in motors will be lost and all joints need
to be completely calibrated again.
The life spans of the lithium batteries are as follows:
Manipulator
C3 series
G / S5 / RS / X5 series
Even if the Manipulator is constantly connected to power, the lithium battery
needs to be replaced before the above battery life.
If the error of the Power-low warning is not occurred, the calibration of the all
joints is not necessary. However, when the position is out of place after the
battery replacement, perform the calibration.
Be sure to use the designated lithium battery and the battery board.
Be sure to set the correct polar when installing the battery.
Safety and Installation (RC620 / EPSON RC+ 6.0) Rev.12
5. General Maintenance
Inserting or pulling out the motor
Battery life
1.5 years
3 years
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