KE 4256-5492 Keatec T Series 10-20kVA PF1.0 208Vac with Internal Battery 7.0 Touch Screen Users Guide English 20181118
This manual is for qualified personnel only
Page 21
4.2
Turn on/off UPS
4.2.1
Restart procedure
CAUTION!
Make certain grounding is correct and secure
.
1) Set the Battery Breaker to the “ON”.
2) Switch ON the power switch for standard UPS.
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.
3) Switch ON UPS input switch
If the Rectifier input is within voltage range, the rectifier will start up in 30 seconds, the inverter will
start up after.
4) Switch ON UPS output switch
If the rectifier fails at start-up, the bypass LED will light up. When the inverter starts up, the UPS will
transfer from bypass mode to inverter mode, and then the bypass LED extinguishes and the inverter
LED lights up. The status will be shown on the LCD display.
4.2.2
Test procedure
CAUTION!
When the UPS is operating normally it may take 60 seconds to start up the system
and perform self-test completely.
1) Switch off the MAINS to simulate utility failure.
The rectifier will turn off and the battery should feed the inverter without interruption. Now the of battery
LEDs should be turned on.
2) 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
recommended to use Dummy loads for testing. The UPS can be loaded up to its maximum capacity
during load test.
