Table 16. Typical Alarms and Conditions (continued)

Alarm or Condition

Possible Cause

Action

 

 

 

Input AC Over Voltage

Utility voltage exceeds the

The UPS transfers to Battery mode if

(Alarm 6)

maximum operating range.

supporting load.

 

 

Intermittent Alarm

 

 

 

 

 

Input AC Under Voltage

Utility voltage is below the

The UPS transfers to Battery mode if

(Alarm 7)

minimum operating range.

supporting load.

 

 

Intermittent Alarm

 

 

 

 

 

Input Under/Over Frequency

The utility frequency is out of

The UPS transfers to Battery mode if

(Alarm 8)

usable frequency range.

supporting load.

 

 

Intermittent Alarm

 

 

 

 

 

Site Wiring Problem

An alarm triggers when the

Have a qualified electrician correct the wiring

(Alarm 194)

difference between ground and

problem. If the UPS is not wired with a neutral

neutral voltage is >15V.

wire, Site Fault should be disabled in the

Continuous Alarm

 

Settings menu (see page 46).

 

 

 

 

 

Remote Emergency Power

The external contacts in the

The UPS de-energizes the load and enters

Off

rear of the UPS are configured

Standby mode. See “Installing Remote

(Alarm 12)

for REPO operation and they

Emergency Power-off” on page 30 for more

have been activated.

information.

Continuous Alarm

 

 

 

 

 

Output Overload

The load level is at or has

The UPS can support the load indefinitely at

(Alarm 25)

exceeded the configurable

this load level.

threshold limit for a Level 1

 

Continuous Alarm

The alarm clears when the load drops below

Overload condition.

5% of the set point.

 

 

 

 

 

 

Output Overload Level 2

The load level is >101% and

Remove some of the equipment from the

(Alarm 159)

<110% of the UPS rating.

UPS. The UPS continues to operate, but

 

transfers to Fault mode in two minutes.

Continuous Alarm

 

 

The alarm clears when the load drops below

 

 

 

 

5% of the set point.

 

 

 

Output Overload Level 3

The load is >110% of the UPS

Remove some of the equipment from the

(Alarm 162)

rating.

UPS. The UPS continues to operate, but

 

transfers to Fault mode in 300 ms to one

Continuous Alarm

 

 

second.

 

 

 

 

The alarm clears when the load drops below

 

 

5% of the set point.

 

 

 

Battery DC Over Voltage

Battery voltage levels have

The UPS turns off the charger until the next

(Alarm 68)

exceeded the maximum

power recycle. Contact your service

allowable limits.

representative.

Continuous Alarm

 

 

 

 

 

72 Troubleshooting

Page 72
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Dell K792N, K802N, K811N, J735N, 1000W, 2700W, J727N, H945N, 1920W, H928N, H919N, 2300W, 1500W, J718N manual Troubleshooting

H928N, K811N, H919N, 1000W, 2700W specifications

Dell's power supply units (PSUs) are essential components for Dell servers and workstations, providing reliable power solutions tailored to meet different demands. Among these, the 500W, 1000W, and 1920W/1500W power supplies stand out for their efficiency, performance, and advanced features tailored to various IT environments.

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