Epson RC420 Manual page 92

Setup & Operation 10. UPS (Uninterruptible Power Supply)
Replacement timing according to the number of backup cycles and usable years
Replacement timing according to the backup time
How to measure the backup time:
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Replace the battery according to the following number of backup cycles and years
when the robot system is used in the standard condition (no option is used) and at
ordinary temperature.
Number of backup cycles (How many times the battery can be charged and
discharged.) : Approximately 500 times
Usable years : Approximately three years
Measuring the battery backup time will show the approximate life cycle of battery.
Measure the backup time using the procedure described below and record it as an
initial value before using the Controller in your system.
Measure the backup time regularly and replace the battery when the measured backup
time is approximately 60% of the initial value.
(1) Turn ON the Controller in the actual configuration of your system, and keep the
Controller energized for approximately 80 minutes.
(2) From the Windows 2000 task bar, click the <Start> button and select the
[Settings] - [Control Panel]. The [Control Panel] window will appear.
(3) Double-click the <System> icon in the [Control Panel] window to show the
[System Properties] dialog. Then, click the [Hardware] tab.
(4) Click the <Device Manager> button to show the [Device Manager] dialog.
(5) Select the [SPEL RESOURCE Drivers] - [SPEL VSRCSHUT] in the [Device
Manager] dialog.
(6) Right-click on the [SPEL VSRCSHUT] and select the "Disable" from the
pop-up menu.
(7) Selecting the "Disable" will show the message dialog. Click the <Yes> button
in the message dialog.
(8) Close all the dialogs and shut down Windows.
(9) Make sure that Windows is shut down and the Controller is safe to be turned
OFF. Then, turn OFF the Controller. Measure how long all the LEDs on the
front panel of the Controller take to light OFF after the Controller is turned OFF.
Then, record the time.
(10) Turn ON the Controller and keep it energized for approximately 80 minutes to
charge the UPS battery.
(11) Set the driver [SPEL VSRCSHUT] whose setting was "Disable" in Step (6) to
the "Enable". (Right-click on the [SPEL VSRCSHUT] and select the "Enable"
from the pop-up menu.)
RC420 Rev.9