beautypg.com

1 led indicator, 2 audible alarm (buzzer) – OPTI-UPS MD120L User Manual

Page 92

background image

Chapter 4 Operator Control and Display Panel 35

35

4.1.1 LED Indicator

The LEDs shown on the mini current path represent the various UPS power paths and show the

current UPS operating status. The status description of indicators is shown in table 4-2.

Table 4-2 Status description of indicator

Indicator

State

Purpose

Rectifier

indicator

Steady green

Rectifier normal for all modules

Flashing green

Rectifier for at least on module normal, mains normal

Steady red

Rectifier fault

Flashing red

Mains abnormal for at least one module

Off

Rectifier not operating

Battery

indicator

Steady green

Battery charging

Flashing green

Battery discharging

Steady red

Battery abnormal (battery failure, no battery or battery reverse) or

battery converter abnormal (failure, over current or over temperature) ,

EOD

Flashing red

Battery low voltage

Off

Battery and battery converter normal, battery not charging

Bypass

indicator

Steady green

Load power supplied by bypass

Steady red

Bypass power abnormal or out of normal range, or static bypass

switch fault

Flashing red

Bypass voltage abnormal

Off

Bypass normal

Inverter

indicator

Steady green

Load power supplied by inverter

Flashing green

Inverter On, start, synchronization of standby (ECO mode) for at least

one module

Steady red

System power not supplied by inverter, inverter fault for at least one

module.

Flashing red

System power supplied by inverter, inverter fault for at least one

module.

Off

Inverter not operating for all modules

Load

indicator

Steady green

UPS output ON and normal

Steady red

UPS output overload and overtime, or output short, or output no power

supply

Flashing red

Overload output of UPS

Off

No output of UPS

Status

indicator

Steady green

Normal operation

Steady red

Failure

4.1.2 Audible Alarm (buzzer)

There are two different types of audible alarm during UPS operation as shown in table 4-3.

Table 4-3 description of audible alarm

Alarm

Purpose

Two short alarm with

a long one

when system has general alarm (for example: AC fault), this audible alarm

can be heard

Continuous alarm

When system has serious faults (for example: fuse or hardware fault), this

audible alarm can be heard

This manual is related to the following products: