APC DP300E Series manual Stop Start and Operating the External Service Bypass Panel, Stop stand-by

Stop, Start & Operating the External Service Bypass Panel

WARNING!

Please read chapter 2.4.1 “Switching off” in this User Guide, if UPS has to be stopped for more than 48 hours.

2.0Stop – Start and Operating the External Service Bypass Panel

2.1General

CAUTION!

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).

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.

2.2Stop (stand-by)

Action	Display shows	Description
Open the front door	System off	Alarm LED lights. Acoustic
and activate the red
“OFF” push-button		alarm sounds for 30 seconds.

2.3Start (from stand-by)

Action	Display shows
Open the front door and	Normal operation
activate the green “ON”
	Load power xx%
push-button

7OA0004 US rev. 02

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