59
KEOR S 3-10 kVA
Oper
ating & I
nstalla
tion M
anual
UPS Is Off Due to Unknown Reason and Its Trouble Shooting
KEOR S 3KVA
If there is a serious abnormal condition occurred, the UPS will lock it itself in “OFF” position as shown in
drawing below and a abnormal message will show on the LCD screen.
* It shows the UPS is locked.
* It shows the UPS is locked.
For some special conditions, the UPS will lock itself; however, it is still allowed to have bypass output in
most of conditions and the LCD screens will show as drawing below and error message will be shown on
the screen.
After 3 seconds, all messages will be locked except Bypass messages(LED & LCD ). In case the
Utility is abnormal after the UPS is locked, the LED will be extinguished and the LCD will be shown
on the LCD screen.
To release the UPS lock, please proceed the followings:
• Check those error messages recorded.
• Check Section 11 to solve the problem. Otherwise, consult to the LEGRAND Technical Assistance Centre.
• Press Off key pad for 5 seconds and buzzer will sound twice.
• Switch the input circuit breaker
(Q1)
to
“OFF”
position.
• The UPS lock problem is solved now, but you shall contact with your Local distributor to make sure the
error message shown is solved.
KEOR S 6-10KVA
If there is a serious abnormal condition occurred, the UPS will lock it itself in “OFF” position as shown in
drawing below and a abnormal message will show on the LCD screen.
LINE
OFF
