General Description; Figure 4: Front Panel - Emerson SolaHD SDU 500A Manual

SDU AC-A Series
A272-290 Rev. 5 07/2018

5.0 General Description

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1. POWER ON/OFF/TEST:
ON - To turn the UPS ON, press and release the button for more than 2 seconds until you hear "3 quick
beeps" and the LEDs light. SELF-TEST - Press the button for less than one second to activate the self-testing.
OFF - Press for more than five seconds to turn OFF LED , UPS turn on.
2. Battery Warning/Overload Indicator (Red LED):
The LED flashes when the battery needs to be recharged and tested.
The LED will illuminate when the unit is subjected to an overload condition.
If the unit shuts down due to overload, the LED and alarm will continue for two minutes.
3. ON Battery Indicator (Yellow LED): The LED illuminates when the UPS is supplying battery power to the
loads.
4. AC Input Normal Indicator (Green LED): The LED illuminates when the line input voltage is normal.
5. Input: IP20-rated Input Screw Terminals.
6. Output: IP20-rated Output Screw Terminals.
Page: 6
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Figure 4: Front Panel

Communication Card Options
SDUCFRELAYCARD
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SDUENETIPCARD