Chapter 7: Maintenance
Figure 7-2. Location of Read Manual and Impact Warning Label
Replacing the Encoder Batteries
Every 2 to 4 years, or if the eCS-ECAT's 2-digit Status Display shows the battery low BA (
)
error, you must replace the batteries to prevent loss of encoder data (which renders the robot
inoperative). The data stored by the encoders is protected by 3.6 V lithium backup batteries loc-
ated under a cover on the link just above the base of the robot.
The replacement battery part number is 05234-000, which includes three individual batteries.
IMPORTANT:
It is not recommended to use substitute batteries supplied by
other manufacturers.
Encoder Battery Replacement Time Periods
If the robot is kept in storage and not in production, or the robot is turned OFF (no 24 VDC sup-
ply) most of the time, then the battery should be replaced every 2 years.
If the robot is turned ON with 24 VDC supplied to the robot more than half the time, then you
can increase the replacement interval to a maximum of 4 years.
NOTE:
Dispose of the battery according to all local and national environmental
regulations regarding electronic components.
Battery Replacement Procedure
Use the following procedure to replace the batteries after you have procured replacement bat-
teries.
!
CAUTION:
DC power must remain supplied to the eCS-ECAT during this pro-
cedure or encoder data could be lost.
!
CAUTION:
Failure to follow these instructions exactly can result in lost
encoder data, and unpredictable robot behavior.
1. Prepare a new set of three backup batteries for replacement.
2. Turn off AC power to the eCS-ECAT.
IMPORTANT:
Do NOT turn off the 24 VDC to the eCS-ECAT, and do not
disconnect the arm/power cable between the eCS-ECAT and the robot.
3. Remove the cover from the robot. See the following figure.
21861-000 Rev A
Viper 650 and 850 Robot with EtherCAT
99
