Table 16. Typical Alarms and Conditions (continued)

Alarm or Condition

Possible Cause

Action

Battery test did not run or was interrupted.

One of the conditions listed in

Resolve the condition, then restart the test.

“Running Automatic Battery

 

Tests” on page 55 was not

 

present.

 

UPS on Battery

A utility failure has occurred

The UPS is powering the equipment with

(Notice 168)

and the UPS is in Battery mode.

battery power. Prepare your equipment for

 

shutdown.

Intermittent Alarm

 

 

 

 

 

 

Battery Disconnected

The UPS does not recognize the

If the condition persists, contact your service

(Alarm 199)

internal batteries.

representative.

 

 

Continuous Alarm

Battery voltage is lower than the

Verify that all batteries are properly connected.

batteries disconnected level

If the condition persists, contact your service

 

 

defined for this UPS. This may

representative.

 

be due to a blown fuse,

 

 

intermittent battery

 

 

connection, or battery cable

 

 

being disconnected.

 

 

 

 

Low Battery Warning

Battery time remaining or

This warning is approximate. The actual time to

(Alarm 56)

battery capacity is lower than

shutdown may vary depending on the UPS load

the battery low warning level

and presence of an External Battery Module

Continuous Alarm

defined for this UPS.

(EBM).

 

 

 

 

Shutdown Imminent

Communication to external

The alarm is issued when the battery time

(Alarm 55)

devices stops because the UPS

remaining reaches zero. All connected devices

has entered a state where it may

should have already shut down gracefully.

Continuous Alarm

abruptly stop operating without

 

 

 

 

further notice unless utility

 

 

returns.

 

 

 

 

Battery Test Failed

A weak battery string was

This is a warning notice. Dell recommends

(Alarm 191)

detected during the last battery

that you replace the batteries soon.

test.

 

Intermittent Alarm

 

 

 

 

 

 

Service Battery

A faulted battery string has

Contact your service representative.

(Alarm 149)

been detected and as a result,

 

the charger is disabled.

 

Continuous Alarm

 

 

 

 

 

 

Utility Not Present

Utility level has fallen below the

The UPS transfers to Battery mode if

(Alarm 59)

Utility Not Present threshold

supporting the load. The UPS shuts down if it

(typically <25 to 50V).

is not supporting the load.

Intermittent Alarm

 

 

 

 

 

Troubleshooting 71

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

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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