APC AP9212 Technical Information download pdf (Page 22)

Chapter 3:

How to Monitor a UPS

PowerNet MIB Reference Guide

[upsAdvInput]

See How to Configure a UPS for information about the following values mentioned in the

descriptions of [upsAdvLineFailCause] OID values in the preceding table:

• Rated output of the UPS

• The high-transfer voltage value

• The low-transfer voltage value

OID Information Reported

upsAdvInputLineVoltage The current input voltage in VAC.

upsAdvInputMaxLineVoltage The maximum input voltage, in VAC, sensed by the UPS during

the last minute.

upsAdvInputMinLineVoltage The minimum input voltage, in VAC, sensed by the UPS during

the last minute.

upsAdvInputFrequency The current input voltage frequency in Hertz.

upsAdvLineFailCause The reason for the most recent transfer to battery.

• Any Management Card or smart-signalling PowerNet Agent can

report the following:

- noTransfer (1): No transfer has occurred.

- highLineVoltage (2): Voltage exceeded the high-transfer

voltage value.

- brownout (3): For more than 5 seconds, the voltage level was

between 40% of the UPS rated output voltage and the low-

transfer voltage value.

- blackout (4): For more than 5 seconds, the voltage level was

between 40% of the UPS rated output voltage and ground [0

volts].

- smallMomentarySag (5): A brownout existed for 5 seconds

or less.

- deepMomentarySag (6): A blackout existed for 5 seconds or

less.

- smallMomentarySpike (7): Less than 10 volts per cycle

voltage increase.

- largeMomentarySpike (8): More than 10 volts per cycle

voltage increase.

• A Management Card can also report the occurrence of a UPS

self-test, self-test (9), and the rate of changes in the line voltage

level, rateOfVoltageChange (10).

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APC AP9212 Technical Information Page 22