American Power Conversion 240-320kW 480V manual Possible alarms, Alarms Description Action

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Alarms and Events

5.3Possible alarms

NOTICE!

Please note mains = utility.

 

 

Alarms

Description

Action

 

 

 

 

1.

Peak current limiter active

Peak current limiter activated and

Check for blown fuses in

 

 

 

UPS switched to bypass operation.

installation

 

 

 

System overload

 

 

 

 

 

2.

Bypass power supply fault

Fault in redundant PSU for bypass.

Call for assistance

 

 

 

UPS still 100% able to operate in

 

 

 

 

all modes.

 

 

 

 

 

3.

Delta current limiter active

Input current limiter activated and

Check for overload.

 

 

 

UPS switched to bypass operation

If message is repetitive -

 

 

 

 

call for assistance

 

 

 

 

4.

Faulty fan

Blocked or faulty fan

Remove blocking or replace fan

 

 

 

 

5.

High DC warning

Switching off big output load

If alarm is repeated, reduce load

 

 

 

 

change

 

 

 

 

6.

High DC shutdown

UPS fault

Call for assistance

 

 

 

 

7.

Off-button activated

Off button or emergency power

 

 

 

shut down activated

 

 

 

 

 

8.

Synchronization error

UPS unable to synchronize with

Check if phase rotation of mains

 

 

 

input frequency

input voltage is correct. If OK, call

 

 

 

 

for assistance

 

 

 

 

9.

Inverter voltage error

Inverter average voltage outside

 

 

 

limits (normal message during

 

 

 

 

system start-up/switch-off

 

 

 

 

 

10.

Parallel synchronization

Parallel UPS unable to

Check external parallel cables -

 

 

error

synchronize

call for assistance

 

 

 

 

11.

Inverter current limiter active

Inverter overload

Reduce UPS output load

 

 

 

 

12.

Overload. Load exceeding

UPS overload

Reduce UPS output load

 

 

100%

 

 

 

 

 

 

13.

Second power supply fault

UPS fault

Call for assistance

 

 

 

(only systems > 160kW)

 

 

 

 

 

14.

Internal power supply fault

UPS fault. Only bypass operation

Call for assistance

 

 

 

possible

 

 

 

 

 

15.

Battery MCCB is off

Battery MCCB/fuse not closed or

Close MCCB / insert new fuse. If

 

 

 

released

released again -

 

 

 

 

call for assistance

 

 

 

 

16.

**Q004 off**

Output switch position for UPS in

 

 

 

parallel

 

 

 

 

 

17.

**Q003 off**

External bypass switch position

 

 

 

 

18.

**Q002 off**

UPS output switch position

 

 

 

 

19.

**Q001 off**

UPS input switch position

 

 

 

 

20.

High temperature of isolation

Temperature of isolation input/

Check fan, check for airflow

 

 

transformer

output transformer, too high

obstructions, check for overload

 

 

 

21. High temperature of main static

Temperature of static input switch,

Check fan, check for airflow

 

 

switch

too high

obstructions, check for overload

 

 

 

 

 

990-4039

User Guide APC Silcon 240-320kW 480V UPS

25

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Contents Copyright 2000 APC Denmark ApS APC Silcon 240-320kW 480V UPS User GuideUser Guide APC Silcon 240-320kW 480V UPS Safety Symbols used in this manualThank You Contents Introduction IntroductionDisplay Unit Stop UPS for stand-by Stop/Start UPS and Operating the External Service BypassStart UPS from stand-by Switching off the UPS Stop UPS for complete power downAcoustic alarm sounds Reset the acoustic alarm by pressingUPS Start-up Start UPS from complete power downClose the front doors Operating the External Service Bypass Switch single systems Service Bypass Switch APC Silcon System OFF Normal operation Load power 0% Dual Utility Bypassing the Parallel UPS System All UPSsLamp indication on Bypass Panel Stop/Start UPS and Operating the External Service Bypass Following can be carried out on any UPS Press On the keyboardIsolating one UPS in a Parallel/Redundant System Stop/Start UPS and Operating the External Service Bypass Operation OperationKeyboard Batt. load Batt. tank Display of Measured ValuesEconomy Mode Using the Remote DisplayParameter Settings Parameter SettingsParameter Settings Parameter Setting CommentsProgramming Keys Switching to Bypass OperationProgramming Example Load power xx% Alarms and Events Alarms and EventsDisplaying the Alarm Stack Displaying the Event StackAlarms Description Action Possible alarmsDisplay will show invalid UPS data Parallel Operation Alarms Rectifying Alarm MessagesCorrection of false alarm situations during service Maintenance & Testing Maintenance & TestingBattery Monitoring Test Battery Capacity TestUntil Warranty WarrantyAPC Silcon UPS Limited Factory Warranty How to Contact APC How to Contact APCAPC Corporate APC Denmark