9-18
Chapter 9. MAINTENANCE & TROUBLESHOOTING
(14) Tighten the lock screw while slightly pushing in the controller’s
console. Take care not to overtighten the screw.
(15) Turn the controller ON, and make sure that the BAT LED is out.
Note
•
The following serves as a general guideline for when to replace the
battery:
About 3 years when using the controller under standard operating
conditions (operating temperature: 23 ±2 °C) with the controller
ON
About 10 years when using the controller under standard operating
conditions (operating temperature: 23 ±2 °C) with the controller
OFF
Using the controller in a higher operating temperature will shorten
its service life.
•
Setups are held in memory even if the BAT LED is blinking.
•
The controller operates in one of two ways when memory contents
are damaged.
(1) “
G
.R
E
S
” is displayed when the controller is turned ON and
regular operation is not started.
(If this happens, press
ENT
to execute a general reset. This
restores parameter setups to factory settings and clears the
program setup.)
(2) Regular operation is started when the controller is turned
ON, and one or both of alarm codes
A
L
q
6
and/or
A
L
q
7
is
displayed.
