Dell 1000W User Manual

Also see for 2700R: Quick start guide

Contents

Dell 1000W User Manual Manual pdf 30 page image

30 | InstallationInstalling the UPSTo install the UPS:1 If you plan to use Dell UPS Management Software, connect your computer to the USB port usingthe supplied cable. For more information about communication options, see page 56.2 If your rack has conductors for grounding or bonding of ungrounded metal parts, connect theground cable (not supplied) to the ground bonding screw. See “Identifying the UPS Rear Panels”on page 15 for the location of the ground bonding screw for each model.3 If an emergency power-off (disconnect) switch is required by local codes, see the following section,“Installing Remote Emergency Power-off” (REPO) to install the REPO switch before powering onthe UPS.4 Plug the equipment to be protected into the UPS output receptacles, but do not turn on theprotected equipment.NOTE: Verify that the total equipment ratings do not exceed the UPS capacity to prevent an overload alarm.Installing Remote Emergency Power-offREPO is used to shut down the UPS from a distance. For example, this feature can be used for shuttingdown the load and the UPS by thermal relay, in the event of room overtemperature. When REPO isactivated, the UPS shuts down the output and all its power converters immediately. The UPS logicpower remains on to issue an alarm.The REPO feature shuts down the protected equipment immediately and does not follow the orderlyshutdown procedure initiated by any power management software. Any devices that are operating onbattery power are also shut down immediately.When the REPO switch is reset, the equipment will not return to utility or battery power until the UPSis manually restarted.The REPO contacts are normally open.WARNING: The REPO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuit must beseparated from any hazardous voltage circuits by reinforced insulation.CAUTION: The REPO must not be connected to any utility connected circuits. Reinforced insulation to theutility is required. The REPO switch must have a minimum rating of 24 Vdc and 20 mA and be a dedicatedlatching-type switch not tied into any other circuit. The REPO signal must remain active for at least 250 ms forproper operation.CAUTION: To ensure the UPS stops supplying power to the load during any mode of operation, the inputpower must be disconnected from the UPS when the emergency power-off function is activated.