Delta AP300 Specifications download pdf (Page 65)

Operation 59

UPS SYSTEM

UPS output not synchronized to input

power

UPS inverter output is not synchronized with the input power. Automatic

transfers to the Static Bypass Line are prohibited. This is usually a temporary

condition that is corrected automatically by the UPS internal control system.

Input power single phased This message indicates an input power problem.

[Check all input power phases.]

Input voltage sensor failed Each input voltage phase has two sensors. One of these sensors has failed.

[Contact Liebert Customer Service and Support at 1-800-543-2378.]

Inverter leg over current in X-phase A fault has been detected in the inverter, caused by a UPS failure. The load

has been automatically transferred to the Static Bypass Line. Power to the load

is not being conditioned by the UPS.

[Contact Liebert Customer Service and Support at 1-800-543-2378.]

Output undervoltage UPS output voltage is below a specified minimum. The load has been

automatically transferred to the Static Bypass Line. Power to the load is not

being conditioned by the UPS. An automatic retransfer will be attempted when

the output voltage is within tolerance.

[Contact Liebert Customer Service and Support if this condition persists.]

Output overvoltage UPS output voltage is above a specified maximum. The load has been

automatically transferred to the Static Bypass Line. Power to the load is not

being conditioned by the UPS. An automatic retransfer will be attempted when

the output voltage is within tolerance.

[Contact Liebert Customer Service and Support if this condition persists.]

Output overcurrent An output overcurrent surge has been detected. The load has been

automatically transferred to the Static Bypass Line. An automatic retransfer will

be attempted when the output current returns to nominal.

[Contact Liebert Customer Service and Support if this condition persists.]

System output overloaded An overload condition is present. If the load is on the UPS inverter, the load will

be automatically transferred to the Static Bypass Line if the overload exceeds

the UPS Module capacity.

[Determine cause of the overload and reduce the load.]

Load transferred to bypass due to

overload

The load has been automatically transferred to the Static Bypass Line because

of an overload condition.

[Determine cause of the overload and reduce the load.]

System output overloaded The overload condition is still present and must be reduced or it will soon

exceed the capacity of the Static Bypass Line, resulting in loss of all power to

the critical load. Power to the load is not being conditioned by the UPS.

[Determine cause of the overload and reduce the load.]

System shutdown due to overload An overload condition has exceeded the capacity of the Static Bypass Line.

The UPS has been shut down, resulting in loss of power to the critical load.

[Perform a UPS shutdown procedure. Correct the overload condition and

perform a UPS start-up procedure.]

Control error Automatic diagnostic testing has detected a failure (of hardware or software) in

the UPS internal control system. A second message may indicate internal test

or software timeout. The load has been automatically transferred to the Static

Bypass Line. Power to the load is not being conditioned by the UPS.

[Contact Liebert Customer Service and Support at 1-800-543-2378.]

Critical power supply failure A failure has been detected in one of the low voltage power supplies. The load

has been automatically transferred to the Static Bypass Line. Power to the load

is not being conditioned by the UPS.

[Contact Liebert Customer Service and Support at 1-800-543-2378.]

Load transferred due to internal

protection

A failure has been detected in the UPS. More specific information may be

available in a separate Alarm Message. The load has been automatically

transferred to the Static Bypass Line (provided the power available on the

bypass line is within specifications). Power to the load is not being conditioned

by the UPS.

[Contact Liebert Customer Service and Support at 1-800-543-2378.]

Table 8 Alarm Messages (continued)

Alarm

Message

Meaning and

Corrective Action in Brackets [ ]

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 112 113

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Delta AP300 Specifications Page 65

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