Operation; Turning On The Ups (Normal Mode); Turning Off The Ups; Remote On/Off - Emerson SolaHD SDU DC UPS B Series User Manual

Operation

Turning ON the UPS (Normal Mode)

1. Ensure that the DC input supply is de-energized prior to wiring the DC UPS system.
2. Ensure that the Battery Module meets the charge schedule.
3. Ensure that the Remote ON/OFF toggle switch for R1 and R2 is open (if using Remote ON/OFF Bypass
Jumper, make sure it is disconnected).
4. Connect the DC input to the DC UPS module; connect the Battery Module to the UPS module; then,
connect the load to the UPS module.
5. Energize the DC input supply.
6. Enable the DC UPS by shorting R1 and R2 through the Remote ON/OFF toggle switch (if not using toggle
switch, insert the Remote ON/OFF Bypass Jumper).
7. This will start the UPS in Normal Mode.
Note: If the DC input supply is not present, the DC UPS will enable Battery Mode. The load will be powered
by the battery module until reaching cutoff voltage (21.6V). Please ensure switch is OFF or ON/OFF Bypass
Jumper is removed when UPS is not in use to prevent draining of the battery.

Turning OFF the UPS

1. Disable the DC UPS by disconnecting R1 and R2 through turning off the Remote ON/OFF toggle switch (if
not using a toggle switch, remove the Remote ON/OFF Bypass Jumper).
2. De-energize the DC input supply.
3. Disconnect the DC input supply, Battery Module, and the load.

Remote ON/OFF

Turns UPS output on when terminals R1 and R2 are shorted.
NOTE: The Remote ON/OFF is connected to the DC UPS internal signal ground and it should be isolated from
the chassis ground potentials that may cause unit malfunction or damage. Isolate the Remote Sense wiring
away from high current, high voltage, and high frequency components to prevent any magnetically coupled
noise on the Remote ON/OFF connections.

Self-Testing

The DC UPS employs an Automatic Self-Test feature. This feature checks the Battery Module's health and
serves as indicator if the battery is still in good condition. The first Self-Testing will be activated 5 hours after
commissioning. The subsequent Self-Testing will happen every 1 month thereafter. If the Battery Health fails
the Self-Test, the Battery LED will display Solid Red.
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Figure 12