American Power Conversion 240-320kW400V manual Possible Alarms, Alarms Description Action

Page 25

Alarms and Events

5.3Possible Alarms

 

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

 

 

 

 

22.

High temperature of bypass

Temperature of static bypass

Check fan, check for airflow

 

static switch

switch, too high

obstructions, check for overload

 

 

 

 

990-4057

User Guide APC Silcon 240-320kW 400V UPS

25

Image 25
Contents Copyright 2001 APC Japan 240-320kW400V UPS User GuideThank You User Guide APC Silcon 240-320kW 400V UPSIntroduction 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 downSystem OFF UPS start-up Start UPS from complete power downSystem start-up now completed Bypassing the Single System UPS Operating the External Service Bypass Switch single systemsStop/Start UPS and Operating the External Service Bypass System OFF Normal operation Load power 0% Bypass operation Bypassing the Parallel UPS System All UPSs Press On the keyboard until Stop/Start UPS and Operating the External Service Bypass Set input switches Q001 to position Isolating one UPS in a Parallel/Redundant System Stop/Start UPS and Operating the External Service Bypass Operation OperationKeyboard Display of Measured Values Using the Remote DisplayEconomy Mode Parameter Settings Parameter SettingsParameter Settings Programming Keys Switching to Bypass OperationProgramming Example To return to normal operation Alarms and Events Alarms and EventsDisplaying the Alarm Stack Mode CommentsAlarms Description Action Possible AlarmsAlarms and Events Parallel Operation Alarms Rectifying Alarm MessagesCorrection of false alarm situations during service Maintenance & Testing Maintenance & TestingBattery Monitoring Test Battery Capacity TestUntil Battery capacity Test Xxx Press Data stored Warranty WarrantyAPC Silcon UPS Limited Factory Warranty How to Contact APC How to Contact APCAPC Corporate APC DenmarkHow to Contact APC