American Power Conversion 240-320kW 480V Manuel d'utilisateur télécharger pdf (Page 5)

Stop/Start UPS and Operating the External Service Bypass

990-4039

User Guide APC Silcon 240-320kW 480V UPS 5

2.0 Stop/Start UPS and Operating the External Service Bypass

Panel

Only qualified electricians should start up or shut down UPS systems and instructions in the

Installation Guide should be followed. Prior to being serviced, the UPS must be left in shut-

down mode for a minimum of 5 minutes.

Users without electrical qualifications may switch UPS to and from stand-by-mode/normal

operation, following instructions below. (

In stand-by mode, the UPS has no output

voltage

2.1 Stop UPS (for stand-by)

2.2 Start UPS (from stand-by)

WARNING!

AC voltage generated either from batteries or utility, may be present at UPS output.

Always disconnect AC input supply source, switch off UPS, AND switch off DC.

TEST BEFORE YOU TOUCH!

Some UPS systems have a factory-set autostart feature, automatically switching on UPS

whenever utility supply is switched on (AC line). See section 4.0 Parameter Settings for

instructions on how to switch off this function.

CAUTION!

Refer to the Maintenance & Testing section in this guide if the UPS is to be taken out of

operation for more than 48 hours

CAUTION!

If the UPS system is equipped with a service bypass panel, and if the load must remain

energized by utility, refer to the Operating Service Bypass Panel sections in this guide before

proceeding

Action

Open the front door

and activate red "OFF"

push-button.

Display shows Description

The red alarm LED lights up.

Acoustic alarm sounds

for 30 seconds

System off

Action

Open the front door

and activate the green

"ON" push button

Display shows

Normal operation

Load power xx%

1 2 3 4 5 6 7 8 9 10 ... 30 31

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American Power Conversion 240-320kW 480V Manuel d'utilisateur Page 5

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