Test Procedure; Cold Start Procedure - BPE PS50 Series User Manual

MAKE SURE GROUNDING IS PROPERLY DONE!
◆ Set the Battery Switch to the "ON" position according to the user's manual.
◆
Open door of the UPS to access to the main power switches. During this
procedure the output terminals will become alive.
CAUTION!
Check to see if the load is safely connected with the output of the UPS. If the
load is not ready to receive power from the UPS, make sure that it is safely
isolated from the UPS output terminals
◆ Turn ON the bypass and input switches of the UPS, make sure that "Bypass module" insert
the cabinet and fix with screws and the module_in switch at the on status
When AC MAINS input voltage within the range, and the rectifiers of the UPS will be started
up in 30 seconds, then the inverter is started completely. When the output switch is "ON", the
inverter LED lights up.
◆ Switch ON output switch
If the rectifier of the module does not start-up, the green LED will flash, bypass
module green LED will light on, the power module green LED will flash. when UPS
turn to inverter mode power module and display panel green LED will light on.
No matter the UPS is operated normally or not, the LCD display will indicate
current status.

4.2.2 Test procedure

CAUTION!
The UPS is operating normally.
It may take 60 seconds to boost up the system and perform self-test completely.
◆ Switch off the MAINS to simulate utility failure, the rectifier will turn off and the battery
should feed the inverter without interruption.
◆ Switch on the MAINS to simulate utility recovery, the rectifier will restart automatically
after 20 seconds and the inverter will supply to the load. It is suggested to use Dummy
loads for testing. The UPS can be loaded up to its maximum capacity during load test .

4.2.3 Cold start procedure

CAUTION!
Follow these procedures when the input AC Utility Failure, but battery is normal
◆ Switch on the battery switch .
The battery will feed the Auxiliary power board .
◆ Switch on the Output switch
◆ Trigger the cold start button of the bypass module.
When battery normal, rectifier starts operation, 30s later, inverter starts and
operates and the green LED will light on.
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