beautypg.com

0 data management, continued, 3 general power supply alarms – Alpha Technologies AlphaNet IDH4 for XM3-HP Series - Technical Manual User Manual

Page 52

background image

52

746-257-B5-001, Rev. A1 (11/2013)

6.2.3 General Power Supply Alarms

The Intelligent CableUPS detects a wide array of alarms and displays the type of active alarm in the

Smart Display screen and the severity of alarm (e.g., Major/Minor) by means of the Inverter Module LEDs.

6.0 Data Management, continued

Active Alarm

Alarm type

Alarm Category

Probable Cause of Alarm

Corrective action

SELF TEST FAIL

Major

PWR

Output voltage failed or batteries less than

1.85V/C during Self Test.

1. Check Batteries

2. Check Inverter

LINE ISOLATION RELAY

Major

PWR

Line isolation has failed and Inverter

operations are suspended.

1. Replace Power Supply as soon as possble

OUTPUT FAIL

Major

PWR

The AC output has failed due to a bad Inverter

or transformer.

1. Check Configuration

2. Replace Inverter

3. Replace Power Supply

OUTPUT OVERLOAD

Major

PWR

The output is overloaded or shorted.

1. Remove Short Circuit

2. Reduce Output Load

3. Replace Power Supply

OUTPUT 1 TRIPPED

Major

PWR

Output 1 AlphaDOC hardware protection

mode is engaged and overloaded.

1. Reduce Output Load

2. Check AlphaDOC setting

OUTPUT 2 TRIPPED

Major

PWR

Output 2 AlphaDOC hardware protection

mode is engaged and overloaded.

1. Reduce Output Load

2. Check AlphaDOC Setting

CHARGER FAILURE

Major

PWR

Charger has failed to shut down; possible

battery over temperature condition exists.

1. Re-seat Inverter

2. Perform Self Test

3. Replace Inverter

INVERTER TEMP

Major

PWR

Inverter heat sink has exceeded set

temperature. (Stand-by operations suspended

until temperature drops to a safe level.)

1. Check Ventilation

2. Replace Inverter

CONFIG ERROR

Major

PWR

The power supply is improperly configured

and operation is suspended until error is

corrected.

1. Check Inverter Module

INPUT FAIL

Minor

PWR

Utility AC input has failed.

1. Check AC Input

2. Restore AC Input

3. Connect Generator

INPUT CURRENT LIMIT

Major

PWR

AC Input current exceeds threshold setting.

1. Reduce Output Load

2. Check Input Current Limit Setting

Table 6-6, Power Alarms: Classifications, Causes and Corrections

General power supply alarms are passed directly from the power supply to the transponder without

specific definition and are classified in the HMS MIB table as psMinorAlarm and psMajorAlarm. There

are a number of problems that can generate these alarms and the exact nature of the situation is not

specified. Minor and Major alarms are defined by the SCTE standards committee as follows:
psMajor
“Service has been dropped or a service interruption is imminent. Indicates that an immediate truck roll is

appropriate.” Several psMajor alarms are latching, meaning that the alarm won’t clear until the problem is

fixed and after a successful completion of a Self Test. A Self Test is the preferred method of verifying the

resolution of the alarm condition as cycling the power has the potential of masking the problem and not

indicating the actual state of the system.
psMinor
“A non-service affecting condition has occurred and should be monitored.”
The following table lists the psMajor and psMinor alarm definitions for the XM3-HP power supply.