Mitsubishi Electric MELFA RH-3CRH Series, Инструкция по эксплуатации, Страница: 75 / 102

5 Maintenance and Inspection
Maintenance and inspection procedures 5-63
5.3.5 Replacing the backup battery
An absolute encoder is used for the position detector, so while power of controller is turned off the position
must be saved by the backup battery. These batteries are installed when the robot is shipped from the
factory, but as these are consumable parts, they must be replaced periodically by the customer.
The guideline for replacing the battery is one year, but this will differ according to the robot's usage state.
There exists the kinds of the errors about the battery shown in
Table 5-9 . If error 7500 occurs, please
exchange the battery of the robot arm and the controller simultaneously.
Table 5-9:The error about the battery
The method of replacing the battery of robot arm is shown below.
About the purchase of the battery, refers to Page 67, "5.5 Maintenance parts" .
If error 7500 or 112n (n indicates the axis number) occurs, the program data and
other data in the controller is lost and it becomes necessary to load the data such
as program and origin data again.
Error number Description Measure
7510 Encoder battery voltage low
Replace the battery as soon as
possible.
7500 No encoder battery voltage
112n
Note1)
Note1) “n” indicates the axis number
Encoder ABS position data lost
The backup data cannot be
guaranteed if this error occurs.
CAUTION