APC PDPM138H-R Installation Guide download pdf (Page 29)

990-3054B-001 Modular Power Distribution Unit – Operation 23

Status and Alarm Messages

This section lists the status and alarm messages that the PDU might display. The messages are listed in

alphabetical order, and a suggested corrective action is listed with each alarm message to help you

troubleshoot problems.

Display Message Detailed Description Corrective Action

High Module Current. The high module current

threshold has been exceeded.

Evaluate the threshold setting. If necessary,

adjust it for your situation.

High Subfeed Current. The high subfeed current

threshold has been exceeded.

Evaluate the threshold setting. If necessary,

adjust it for your situation.

Low Module Current. The low module current

threshold has been exceeded.

Evaluate the threshold setting. If necessary,

adjust it for your situation.

Low Subfeed Current. The low subfeed current

threshold has been exceeded.

Evaluate the threshold setting. If necessary,

adjust it for your situation.

Maximum Module

Current.

The maximum module current

threshold has been exceeded.

Evaluate the threshold setting. If necessary,

adjust it for your situation.

Maximum Subfeed

Current.

The maximum subfeed current

threshold has been exceeded.

Evaluate the threshold setting. If necessary,

adjust it for your situation.

Minimum Module

Current.

The minimum module current

threshold has been exceeded.

Evaluate the threshold setting. If necessary,

adjust it for your situation.

Minimum Subfeed

Current.

The minimum subfeed current

threshold has been exceeded.

Evaluate the threshold setting. If necessary,

adjust it for your situation.

Modular Distribution

Communication.

Communication has been lost

with the modular distribution

breakers.

Check the communication cables to ensure they

are properly connected. Contact APC Customer

Support.

Module Breaker Open. A modular circuit breaker is

open.

Check the modular circuit breakers to see if one

has overloaded. Replace if necessary.

Subfeed Breaker Open. A subfeed circuit breaker is

open.

Check the subfeed circuit breakers to see if one

has been over-loaded.

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