Janus 120V 1000VA, User Manual

20 

4.4 

REPO Switch 

      The UPS is equipped with an Emergency Power Off (EPO) switch. The user 

must supply a means of interfacing with the EPO circuit to allow disconnecting 
the UPS input feeder breaker to interrupt all sources of power to the UPS and 
connected equipment to comply with national and local wiring codes and 
regulations. 

1 2 

1 = REPO+ 
2 = Ground 
Short Pin 1 and Pin 2 to enable the REPO function 

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5 

OPERATION 

5.1 

  Turn on the UPS 

1. Connect the UPS to the wall receptacle. LCD will display “OFF”, when 

Utility is normal. If there is nothing on the LCD, go to step 3. 

 
2. Press the “On” Switch on the front panel for approximately 3 seconds until   

buzzer sounds, then release the “On” Switch to start the UPS. Both the 
LCD and Utility LED (Green) are lit. The start-up procedure is completed 
and the loads are supplied by the UPS. 

 
3. To cold start the UPS, press the “On” Switch on the front panel for 

approximately 3 seconds until the LCD lights up and buzzer sounds, then 
release the “On” Switch. The UPS starts operating and Battery Backup 
LED (Amber) lights up. The cold start-up procedure is completed and the 
loads are supplied by the UPS. 

4. The UPS will run under Backup mode and the buzzer alarms every 2 

seconds in case of blackout or over/under voltage. On the contrary, If Utility 
is back to normal and then the UPS will run under Utility mode and silence 
alarm. 

5.2 

  Turn Off the UPS

1. 

Press the “Off” Switch for at least 3 seconds to turn off the UPS. If you 

press the “Off” Switch less than 3 seconds, the UPS will not execute 
shutdown command due to insufficient pressing time. 

 
2. 

In some occasions, the UPS will shut itself down in case of overload, 

output short-circuited or battery cutoff point reached in the Backup mode. 

 
3. 

The UPS will automatically shut off the output and beep for 5 seconds then 

completely shut itself down. 

5.3 

 Plug-in Charge

1. 

If the Input Power Cord is connected to the wall receptacle properly and 

the utility is normal, the UPS will start charging automatically without 
processing “Turn On” procedure. 

2. 

You have to charge for at least 8 hours every 3 months to avoid from 

battery self over-discharge naturally, if the UPS is in an idle condition.