Maintenance 5. Firmware Update
142 RC620 Rev.8
5.3 Controller Recovery
If the Controller becomes inoperable, use the procedures described in this section to
recover.
Controller Backup is recommended for easy recovery of the Controller operation. For
details of Controller Backup, refer to Maintenance 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 LCD is
displayed as below.
RC+ startup normally but is unable to function normally.
Condition B
The Controller LCD cannot be “Wait for RC+ startup” or “READY”.
Cannot communicate with the Controller using the development PC.
RC+ is unable to function normally.
Countermeasure for the error status is as follows.
Condition A
Follow the Firmware Initialization Procedure in Maintenance 5.4 to
Condition B
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.
hold in the trigger button for 30 seconds.
Controller to start in Recovery mode.
(3) Make sure that the LCD displays as below.
(4) Follow the Firmware Initialization Procedure in Maintenance 5.4
from step (3) to initialize the firmware.
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