Liebert UPS System user manual Buzzer alarm, LED indicator of lightning protection device

Chapter 7 Troubleshooting

Rectifier indicator: If it turns red, that means the rectifier fails;

Battery indicator: If it turns red, that means the battery is abnormal;

Inverter indicator: If it turns red, that means the inverter fails;

Load indicator: If it turns red, that means overload occurs;

Alarm indicator: If it turns red, that means the system fails;

7.2.2 LED indicator of lightning protection device

Fig. 7-1 Lightning protection LED

LED indicators of lightning protection device of 40/60kVA UPS are shown in Fig.7-1. From bottom to up the LEDs are: Lightning protection indicators of Phase A, B and C; LED indicators of lightning protection device of 40/60kVA UPS are arranged from left to right and are indicators of Phase A, B and C respectively. The device is normal if the indicator illuminates green, and fails if the indicator turns off. The checking of the indicators is described in Chapter 6.

7.3 Buzzer alarm

If the buzzer sounds 1 second “click” every 2 seconds, that means the system has normal alarm or the system is abnormal;

If the buzzer sounds continuously, that means the system has serious fault.

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