FUNCTIONS AND CONTROLS
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Y500-1500_usermanual_engl_updated_202001.docx
4.
Functions and controls
Together with the beeps, the LEDs on the front of the device indicate
the operating status of the UPS.
Figure 3: Control panel and display
Switch / LED
Function
Alarm
Switch on/off
Normal operating mode:
Green LED permanently lit
Battery mode:
Green LED flashes every 10 sec-
onds
Every 10 seconds
Battery voltage low:
Green LED flashes every second,
red LED permanently lit
Every second
Error:
Red LED permanently lit
Continuous tone
Temperature too high:
Red LED flashes every 0.5 seconds
Table 2: Descriptions of display
