Omron CJ - 09-2009 Operation Manual page 225

Power Supply Units
Capacity at
time of
manufacture
Replacement
required
Electrolytic
capacitor level
Alarm Output
(Replacement Notification
Output)
Replacement notification display
(7-Segment)
Alarm output
(replacement notification output)
Note 1. The time remaining until replacement does not include periods when the
power is turned OFF.
2. Until approximately one month of operating time has accumulated, the dis-
play will always be "FUL" and the alarm output will remain ON (conducting)
due to the estimated deterioration speed.
3. The time remaining until replacement will vary the operating and storage
conditions, so periodically check the display.
4. Fluctuation in the time remaining until replacement may result in the alarm
output repeatedly turning ON and OFF.
5. The precision of the replacement notification function will be adversely af-
fected by applications in which the power is frequently turned ON and OFF.
6. Due to the service life of the electronic components, replace the Power
Supply Unit approximately 15 years after purchase, even if the replace-
ment notification display or output has not indicated that replacement is re-
quired.
The output remains ON until the remaining service life drops below 6 months
and then turns OFF.
Note 1. The alarm output will also turn OFF under the following conditions.
• The AC input to the Power Supply Unit is turned OFF.
• An error is detected by the self-diagnostic function.
• The TEST switch is pressed for at least 3 seconds.
2. Example of Using the Alarm Output:
Monitoring Power Supply Replacement Notification in the System (6
Months or Less Until Replacement Is Required)
Alarm output
2.0 yr 1.5 yr 1.0 yr
Output ON
ON
OFF
Turns OFF when 6 months remains
Alarm output
[
Internal Flag
T000
Section 3-4
Remaining
0.5 yr 0 yr
life plan
Output
OFF
The output turns OFF when the
remaining life span reaches 6
months, and the following display
is repeatedly alternated.
]
TIM 000 5 s
177