![](/images/new-backgrounds/1170585/170585159x1.webp)
5 Troubleshooting
5.1 Alarm Messages
Alarm messages are displayed on the LCD control panel. Press the “UP” and “DOWN” buttons to scroll through all alarm messages.
Table 5.1a Warning Message List
Warning Message | Condition | Chapter Index |
|
|
|
MAIN VOLT/FREQ NOK | Main input voltage abnormal | 5.2.1 |
| ( load<70%: 120V~276V, load>70%:173V~276V ) |
|
| Main input Freq. abnormal ( 45Hz~65Hz ) |
|
|
|
|
MAIN SEQUENCE NOK | Main input phase sequence abnormal | 5.2.2 |
|
|
|
BYPASS VOLT/REQ NOK | Bypass voltage over rating | 5.2.3 |
| ( 220V/230V/240V ) |
|
| Bypass Freq. over rating ( 50Hz/60Hz |
|
|
|
|
BYPASS SEQUENCE NOK | Bypass phase sequence abnormal | 5.2.4 |
|
|
|
BYPASS STATIC SWITCH OVER TEMPERATURE | Bypass STS temperature over 80 degree C | 5.2.5 |
|
|
|
BYPASS STATIC SWITCH FAULT | Bypass STS open/short | 5.2.6 |
|
|
|
BYPASS STATIC SWITCH OVERLOAD | Bypass loading over 175% | 5.2.7 |
|
|
|
UPS INTERNAL COMM ABNORMAL | 1.CAN BUS loss | 5.2.8 |
| 2.SCI loss |
|
| 3.Power module internal communication loss |
|
|
|
|
BAT TEST FAIL | Battery Capacity too low | 5.2.9 |
|
|
|
BAT OVER CHARGE | Battery voltage more than 296V | 5.2.10 |
|
|
|
BATTERY BAD | Battery Voltage under 190V | 5.2.11 |
|
|
|
BYPASS FAN FAILURE | Bypass FanA/B/C fail | 5.2.12 |
|
|
|
TRANSFORMER OVERHEAT | IN/OUT transformer overheat warning (HW detect signal) | 5.2.13 |
|
|
|
UPS OUTPUT VOLT NOK | UPS output voltage over rating | 5.2.14 |
| ( 220V/230V/240V ) |
|
|
|
|
UPS EXT PARALLEL COMM ABNORMAL | Parallel CAN BUS loss | 5.2.15 |
|
|
|
PARALLEL FAILURE | PID confl ict or system KVA rating not the same | 5.2.16 |
|
|
|
REDUNDANCY LOSS | UPS lost redundancy | 5.2.17 |
|
|
|
MANUAL BYPASS ON | Manual bypass on |
|
|
|
|
BAT LOW WARNING | Battery voltage under 220V and above 200V |
|
|
|
|
BAT LOW SHUTDOWN | Battery voltage under 200V |
|
|
|
|
BAT REPLACE REQUIRED | Battery package out of date |
|
|
|
|
INVERTER OVERLOAD WARNING | Loading over 105% |
|
|
|
|
INVERTER OVERLOAD SHUTDOWN | Loading over 105%~125% 10min. |
|
| Loading over 125%~150% 1min. |
|
| Loading over 150% 1sec. |
|
|
|
|
INVERTER OVER CURRENT | Output current over 80A/phase |
|
|
|
|
EMERGENCY POWER OFF ACTIVED | E.P.O./ Remote E.P.O. ON |
|
|
|
|
OUTPUT BREAKER OFF | Output breaker not turn on |
|
|
|
|
BYPASS LOAD OVER 104% | the load over 104% when UPS is on bypass |
|
|
|
|
BAT CABINET OVER TEMPERATURE | Battery cabinet over 35 degree C |
|
|
|
|
EXT BAT BREAKER OFF | If support external battery and the breaker ont turn on |
|
|
|
|
98