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 45 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 61

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Dell J715N, K789N, K788N, K806N, 500W, H914N, H900N, H965N, J716N manual Action

J716N, 500W, H965N, H900N, J715N 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.

Starting with the 500W power supply, this unit is designed for entry-level servers and workstations. It boasts a compact design that facilitates easy installation in space-constrained scenarios. The 500W PSU operates with a high efficiency rating, contributing to lower energy costs and reduced heat output. It supports the latest energy standards, including 80 PLUS certification, ensuring that customers can rely on it for consistent performance and reliability. This unit is particularly suitable for small to medium businesses looking for cost-effective power solutions for basic applications.

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For environments with higher power demands, Dell offers the 1920W/1500W power supply. This robust unit is engineered for high-performance servers and large-scale data centers, where maximum uptime and performance are paramount. The modular design of the 1920W/1500W power supply allows for enhanced cable management, reducing clutter and improving airflow within racks. With an efficiency rating that adheres to 80 PLUS Platinum standards, this PSU not only minimizes energy consumption but also maximizes operational efficiency, making it ideal for organizations looking to optimize their data center environments.

In summary, Dell's 500W, 1000W, and 1920W/1500W power supplies cater to a wide range of computing needs. From entry-level solutions to high-capacity units for demanding environments, Dell ensures that its power supplies provide reliability, efficiency, and performance. As organizations continue to evolve their IT infrastructure, these power supplies remain pivotal in supporting their growth and operational goals.