Epson RC620 CU Manual page 87

13. UPS
The UPS (Uninterruptible Power Supply) protects the hard disk data (including Windows
and applications) from being damaged by power failure or power-off without shutdown.
■ Utilize the UPS only for protecting the data from damages caused by power
failure or power-off without shutdown. If the UPS is turned OFF over and over
intentionally while Windows is operating, the life cycle of UPS battery will be
shortened and the UPS may perform insufficiently.
CAUTION
■ Complete the shutdown of Windows within two minutes. If Windows is not shut
down within the battery backup time of the UPS, the data may be damaged.
The UPS consists of the battery and the ATX power inside the Controller. The UPS
provides backup power only for the 3.3V, 5V, and 12V power supplies that are necessary
to operate the CPU, hard disk, and the control board. The UPS does not back up the
power supply of Manipulator or Encoder Power Supply. Therefore, when a power failure
or power-off without shutdown occurs while the Manipulator is operating, an error such as
an encoder communication error occurs and the Manipulator makes an emergency stop.
Normal Shutdown of Robot System
Exit EPSON RC+ 6.0 and shut down Windows. After the Windows shutdown, make
sure the LCD panel is turned OFF and then turn OFF the power switch of the Controller.
Automatic Shutdown by UPS service in Robot System
For RC620, the UPS service of the Windows functions and automatically shuts down the
system when a power failure or power-off without shutdown occurs.
■
While Windows is starting up
A power failure or voltage drop occurs and the power does not recover.
The power switch is turned OFF accidentally and the switch is left OFF.
A power failure or voltage drop occurs and the power recovers promptly.
The power switch is turned OFF accidentally and the switch is turned ON.

CAUTION
RC620 Rev.8
→ Windows starts up and then it is shut down automatically.
→ Windows，EPSON RC+ start up normally.
When Windows is hung, even if you turn OFF the Controller, Windows remains hung
until the ATX power battery is completely discharged. In this case, turn OFF the
UPS ON/OFF switch.
Controller for more than 5 seconds. The ATX power output will be turned OFF.
Then, press the SHUTDOWN switch on the front of
Setup & Operation 13. UPS
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