Apc DP300E User Manual download pdf (Page 27)

27User Guide Silcon DP300E Series 480V 120-160kVA

7OA0003 US rev. 03

Alarms

6.6 Possible alarms

Possible alarm

1. Peak current limiter active

2. Bypass power supply fault

3. Delta current limiter active

4. Fan fault

5. High DC warning

6. High DC shutdown

7. Off button pushed

8. Synchronization error

9. Inverter voltage error

10. Parallel sync. error

11. Inverter current limiter

active

12. Overload Load is over

100%

13. Second power supply fault

14. Internal power supply fault

15. Battery MCB is off

16. ** Q004 off **

17. ** Q003 on **

18. ** Q002 off **

19. ** Q001 or Q010 off **

Description

Peak current limiter has

been activated and UPS

switched to bypass opera-

tion. System overloaded

Fault in redundant PSU

for bypass. UPS has still

100% performance and can

operate in all modes

Input current limiter has

been activated and UPS

switched to bypass opera-

tion

Blocked or faulty fan

Switching off big output load

Fault in UPS

Off button or emergency

power down activated

The UPS can’t synchronize

to the input frequency

Inverter average voltage out

of limits (normal message

during starting up/switching

off the system)

Parallel UPS’s are not able

to synchronize

Overload on inverter

Overload on UPS

Fault in UPS

(Only in systems >160kW)

Fault in UPS. Only bypass

operation possible

Battery MCCB switch not

closed or released

Position of output switch for

UPS in parallel

Position of external bypass

switch

Position of UPS output

switch

Position of UPS input switch

Action

Check for blown

fuses in your

installation

Call for assistance

Check for overload.

If repetitiv – call for

assistence

Remove blocking or

call for assistance

If repetitive reduce the

load change

Call for assistance

–

Check if phase

rotation of main input

voltage is correct – if

OK call for assistance

–

Check external

parallel cables

Call for assistance

Reduce UPS output

load

Reduce UPS output

load

Call for assistance

Call for assistance

Close MCCB.

If released again

– call for assistance

–

–

–

–

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