Controller Recovery - Epson RC90 Series Maintenance Manual

5.3 Controller Recovery

If the Controller becomes inoperable, use the procedures described in this section to recover.
NOTE
Controller Backup is recommended for easy recovery of the Controller operation. For

details of Controller Backup, refer to 4. Backup and Restore.
The following two conditions describe the Controller error status after turning on the
Controller.
Condition A The Controller automatically changes to Recovery mode and the LED of
Condition B The LED of TEACH, AUTO, and PROGRAM do not blink.
Countermeasure for the error status is as follows.
Condition A Follow the Firmware Initialization Procedure in 5.4 Firmware Initialization
Condition B
RC90 Series Maintenance Rev.1
ERROR, TEACH, and PROGRAM are lighting.
communicate with the development PC though the Controller does not
operate properly.
Cannot communicate with the Controller using the development PC.
Procedure
Execute the following steps:
(1) Turn OFF the Controller.
(2) Push the trigger button located on the front side of the Controller and
while holding the button in, turn ON the Controller. Continue to hold
in the trigger button for 30 seconds. This will cause the Controller to
start in Recovery mode.
(3) Make sure that the LED of ERROR, TEACH, and PROGRAM are
lighting.
(4) Follow the procedure in 5.4 Firmware Initialization Procedure from
step (3) to initialize the firmware.
Maintenance 5. Firmware Update
You are able to
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