TOSHIBA

5.0Operating the UPS

5.3Operation Monitoring

5.3.1Visual Indicator Functions

The following LED (light emitting diode) indicators are located on the front panel (see Section 9.2 "Panel Layout"). Refer to these lamps for visual information about the operating condition of the UPS (see Section 5.3.3 "Visual and Audible Indicator Function Chart").

1)AC Input: This green LED lights when normal ac input power is being supplied to the UPS unit.

2)On Line: This green LED lights when the inverter output voltage is normal.

3)Fault: This red LED lights when an abnormal operating condition is detected. Operation of the unit's inverter is inhibited until the fault has been corrected and the system reset (see Section 5.10 "System Reset").

5.3.2Audible Alarm Functions

The UPS is equipped with an audible alarm system which activates under various operating conditions. Sound patterns are used to indicate these conditions (see Section 5.3.3 "Visual and Audible Indicator Function Chart"). Alarms for the battery backup mode or low battery voltage will stop automatically when AC input voltage is restored. Alarms for a fault condition will continue to sound until the UPS has been reset (see Section 5.10 "System Reset").

5.3.3Visual and Audible Indicator Function Chart

Condition

Cause

 

 

Audible

Visual

UPS

 

 

 

 

 

Alarm

 

 

 

 

 

 

 

Indicators

Operation

 

 

 

 

 

 

Pattern

 

 

 

 

 

 

 

 

Overcurrent (OC)

Problem in chopper or

 

 

 

 

 

 

 

 

 

1) "Fault" LED

1) Auto

 

inverter circuit.

 

 

 

 

 

 

 

 

 

is ON

transfer

 

 

 

 

 

 

 

 

 

 

ON

2) "On Line"

to bypass

 

 

 

 

 

 

 

 

 

 

DC Bus Overvoltage (DCOV)

DC Bus > 115% of rated.

 

 

 

 

 

 

 

 

LED is OFF

2) Chopper

 

 

 

 

 

 

 

 

 

 

OFF

3) "AC Input"

stopped

 

 

 

 

 

 

 

 

 

 

Ouput Overvoltage (OV)

V out > 110% of rated.

 

 

 

 

 

 

 

 

LED is ON

3) Inverter

 

 

 

 

 

1.5s

 

 

 

 

2s

 

 

 

stopped

Undervoltage (UV)

V out < 85% of rated.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overheat (OH)

Heatsink exceeds 90º C.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overload (OL)

Output current and over-

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

load specifications have

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

been exceeded.

 

 

.5s

 

 

.5s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Battery problem

Problem in battery

 

 

 

 

 

 

 

 

ON

1) “Replace

1) Bypass or

 

 

 

 

 

 

 

 

 

 

circuit.

 

 

 

 

 

 

 

 

OFF

Battery”

On-Line

 

 

 

 

1s

 

 

2s

LED is ON

mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal battery backup

Loss of AC power

 

 

 

 

 

 

 

 

ON

1) "Fault" LED

1) Chopper

operation

 

 

 

 

 

 

 

 

 

OFF

is OFF

running

 

 

 

 

 

 

 

 

 

 

2) "On Line"

2) Inverter

 

 

 

 

5s

 

 

70s

LED is ON

running

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3) "AC Input"

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

LED is OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

Low battery voltage

Battery voltage too low,

 

 

 

 

 

 

 

 

OFF

 

 

 

Shutdown imminent.

 

 

 

 

 

 

 

 

 

 

 

 

 

1s

 

 

.5s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Toshiba 1500 Plus manual Operation Monitoring Visual Indicator Functions, Audible Alarm Functions, Indicators Operation

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