Alarms

6.6Possible alarms

 

Possible alarm

Description

Action

 

 

 

 

 

 

1.

Peak current limiter active

Peak current limiter has

Check for blown

 

 

 

been activated and UPS

fuses in your

 

 

 

switched to bypass opera-

installation

 

 

 

tion. System overloaded

 

 

 

 

 

 

 

2.

Bypass power supply fault

Fault in redundant PSU

Call for assistance

 

 

 

for bypass. UPS has still

 

 

 

 

100% performance and can

 

 

 

 

operate in all modes

 

 

3.

Delta current limiter active

Input current limiter has

Check for overload.

 

 

 

been activated and UPS

If repetitiv – call for

 

 

 

switched to bypass opera-

assistence

 

 

 

tion

 

 

4.

Fan fault

Blocked or faulty fan

Remove blocking or

 

 

 

 

call for assistance

 

 

 

 

 

 

5.

High DC warning

Switching off big output load

If repetitive reduce the

 

 

 

 

load change

 

6.

High DC shutdown

Fault in UPS

Call for assistance

 

7.

Off button pushed

Off button or emergency

 

 

 

power down activated

 

 

8.

Synchronization error

The UPS can’t synchronize

Check if phase

 

 

 

to the input frequency

rotation of main input

 

 

 

 

voltage is correct – if

 

 

 

 

OK call for assistance

 

9.

Inverter voltage error

Inverter average voltage out

 

 

 

of limits (normal message

 

 

 

 

during starting up/switching

 

 

 

 

off the system)

 

 

10.

Parallel sync. error

Parallel UPS’s are not able

Check external

 

 

 

to synchronize

parallel cables

 

 

 

 

Call for assistance

 

11.

Inverter current limiter

Overload on inverter

Reduce UPS output

 

 

active

 

load

 

12.

Overload Load is over

Overload on UPS

Reduce UPS output

 

 

100%

 

load

 

13.

Second power supply fault

Fault in UPS

Call for assistance

 

 

 

(Only in systems >160kW)

 

 

14.

Internal power supply fault

Fault in UPS. Only bypass

Call for assistance

 

 

 

operation possible

 

 

15.

Battery MCB is off

Battery MCCB switch not

Close MCCB.

 

 

 

closed or released.

If released again

 

 

 

 

– call for assistance

 

16.

** Q004 off **

Position of output switch for

 

 

 

UPS in parallel

 

 

17.

** Q003 on **

Position of external bypass

 

 

 

switch

 

 

18.

** Q002 off **

Position of UPS output

 

 

 

switch

 

 

19.

** Q001 or Q010 off **

Position of UPS input switch

 

 

 

 

 

 

 

 

 

7OA0002 US rev. 04

 

 

 

 

 

User Guide Silcon DP300E Series 480V 240-320kVA

27

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Image 27
APC DP300E manual Possible alarms, Possible alarm Description Action