Uninterruptible Power Supplies Online UPS 3K User Manual download pdf (Page 36)

4: Operating Procedures

4-2 UPS724-01-00 PowerWave 1000 (1-3kVA) User Manual - Dated 26 June 2013

4.1.2 Start-up on battery mode (cold start)

In the absence of the utility power supply, the UPS can be started from its internal batteries – sometimes referred to as a

“cold start”. This is only possible if the batteries are well charged – to a minimum of 33.5V in the case of a 1 kVA unit and

67V for the 2 kVA and 3 kVA units. This is achieved if the batteries have been charged for a minimum of 4 hours.

Note: Read through this procedure before you attempt to carry it out. In a part of this procedure you have to press the

ON button twice within a one second period. If you take longer than one second between presses the UPS will not start

and you will have to turn it

OFF,

by pressing the

OFF

button, before you can make another attempt to start it.

1. Hold the ON button for approximately 3 seconds until a double beep is

heard then momentarily (within one second) release the button and

press it again for approximately 3 seconds until a further beep is heard.

During the first button press

a) The UPS fans will start.

b) The UPS control system will boot-up and initially turn on all the leds

and LCD symbols for a few seconds.

c) When control system boot-up has completed, all the leds will turn

off, the LCD mimic will display the UPS connected to the battery and

the UPS status will be shown as

off.

Following the second button press

a) The LCD display will initially keep the UPS

off screen displayed for

a few seconds.

a) The UPS will then run an initialisation self-test routine, with

Inlt

status shown on the LCD.

b) The audible alarm will sound intermittently but may be silenced by

pressing the alarm silence (ON) button.

c) If the UPS does not complete its initialisation self test successfully

the LCD will show a FalL status message.

d) If the UPS passes its initialisation self test the LCD mimic display

will show that the UPS is operating on battery and the input voltage

will be indicated as

0 V on the LCD meter.

e) The two programmable outlet LEDs will illuminate (if programmed to

be turned on) to show that these two output are now live, but the

utility supply and bypass supply leds will remain extinguished

2. Check all metered parameters to ascertain that the battery voltage and

UPS output indications are correct (see page 4-3)

CAUTION: When turning on the UPS for the first time, or following a long shut down period, leave the unit

running for at least eight hours to fully charge the batteries before connecting any critical load.

LINE UPS LOAD

LOW

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Uninterruptible Power Supplies Online UPS 3K User Manual Page 36

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