Apc Silcon DP300E Series User Manual download pdf (Page 5)

5User Guide Silcon DP300E Series 480V 400-500kVA

7OA0004 US rev. 02

Stop, Start & Operating the External Service Bypass Panel

2.0 Stop – Start and Operating the External Service

Bypass Panel

2.1 General

To avoid possible personal injury or equipment damage, be aware that there may be

AC voltage at the UPS’s output terminals/receptacles any time AC input power or

DC battery voltage is applied. The UPS can provide output voltage from the batteries

even when there is no AC input line voltage. When AC voltage is present, the UPS

can provide output voltage even when the batteries are disconnected. If you want to

be certain that there is no UPS output voltage, always disconnect the AC input

source, switch off the UPS, AND switch off the DC. TEST BEFORE TOUCHING!

Some units have been programmed at the factory for autostart. When this para-

meter is programmed to be on, the unit will automatically switch on whenever utility

(AC line) is applied. To switch this parameter off, see chapter 4.0.

For safety reasons, only qualified service personnel should do a complete start-up

or shut-down of the UPS whenever this is necessary. The qualified service person

should follow the instructions in the User and Installation Manual. The UPS must

be completely shut down before service or before the UPS is taken out of operation

for more than 24 hours.

Although users cannot completely start-up or shut down the unit, they can switch

the UPS into standby mode and return it to normal operation by following the

instructions below. (In stand-by mode, the UPS does not provide output voltage).

CAUTION!

WARNING!

Please read chapter 2.4.1

“Switching off” in this User

Guide, if UPS has to be

stopped for more than 48

hours.

2.2 Stop (stand-by)

Action Display shows Description

Open the front door

and activate the red

“OFF” push-button

2.3 Start (from stand-by)

Action Display shows

Open the front door and

activate the green “ON”

push-button

System off Alarm LED lights. Acoustic

alarm sounds for 30 seconds.

WARNING!

If the UPS system is installed

with a service bypass panel,

and the load equipment must

remain energized from utility,

refer to operating service

bypass panel before

proceeding chapter 2.2 - 2.5.

Normal operation

Load power xx%

1 2 3 4 5 6 7 8 9 10 ... 37 38

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Apc Silcon DP300E Series User Manual Page 5

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