Ups Start-Up Instructions; Inverter Turn-On And Lcd Panel Leds Activation; Load Insertion Test - Liebert Hinet 10kVA User Manual

The operations described in the paragraphs that follow must be carried out by authorised electricians or trained
personnel
5.2.1

UPS Start-Up instructions

This procedure should be followed when turning on the UPS from a fully powered down condition - i.e. where the load
is not being initially supplied at all. It is assumed that the installation is complete, the system has been commissioned by
authorised personnel and the external power switches are closed. Refer to Fig. 5-1 for corresponding switches
Before activating the UPS check that the lever of the MANUAL BY-PASS switch has been lowered and mechanically
locked (a safety padlock can be eventually used).
Before activating the UPS operate the switches following the order given below:
1. Open the UPS door to have access to the main power switches.
2. Switch ON RESERVE INPUT switch
3. Switch ON the UPS OUTPUT switch
- wait the fan running, so the voltage is present to the output
4. Switch ON the INPUT MAINS switch
5. Switch ON the BATTERY switch
5.2.2

Inverter Turn-on and LCD panel LEDs activation

When switching ON, the UPS will set to the automatic By-pass condition (yellow LED BYPASS
generic alarm (red LED ALARM
- Press the key to mute the buzzer.
- The LCD displays the alarm INVERTER OFF .
- To start the inverter press the MENU button then, when the COMMAND MODE appears, press both next & back
buttons (ENTER) and than press ENTER again to turn-on the inverter.
LED status when switching ON the UPS
a) green NORMAL ON
b) green LOAD ON INVERTER ON (Inverter running)
c) yellow LOAD ON BYPASS OFF
d) red ALARM OFF
5.2.3

Load insertion test

Dummy loads are suggested to be used till reaching the maximum UPS power.
The LCD panel will display the corresponding current and output power in the STATUS ALARM MENU .
The ALARM MESSAGE " INVERTER OVERLOAD" means that the UPS is overloaded (the load connected
exceeds the rated value: disconnect the load in excess, restart the inverter (point 5.22) and reset the alarm.
Wait at least 5 minutes after Shutting Down the Hinet before proceeding with the Starting Up procedure.
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ENSURE CORRECT PHASE ROTATION.
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and buzzer alarm activated).
ON
The UPS is operating normally and the inverter is supplying the load.
WARNING
WARNING
WARNING
(06/01)
Hinet UPS User Manual
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to .
) thus producing a
ON