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The yellow LED
Indication
UPS comes on and the buzzer sounds continuously.
The phase and neutral positions of your electrical network are
Signification
showing reversed positions.
Directly grounded neutral type networks: Check the cabling of phase
and neutral on your electrical network.
For all other network types, de-activate the detection function (this
function is only operational for directly grounded neutral electrical
Correction
networks):
Press the Test Phase button
least five seconds (UPS will stop and re-connect to the network
within 30 minutes).
LED
Indication
UPS has detected a fault. Depending on the UPS personalization
parameters (see 3.4 Personalization (option) on page 15).
There are two possibilities:
- The equipment connected to the UPS continues to be supplied with
power, but it is directly from the AC power source (via the automatic
Signification
bypass (LED
- The equipment is no longer supplied with AC power.
Call the technical support department or e-mail
Correction
tech@cyberpowersystems.com.
22 Maintenance
flashes, the red indicator light
21
6
flashes and the buzzer sounds continuously.
23
ON).
16
The equipment connected to the UPS is no longer
protected.
behind the
7
located on the rear of the UPS, for at
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