Eaton ATC-900 Instruction Booklet

Also see for ATC-900: Operation and maintenance manual Manual Operation and maintenance manual Instruction booklet Operation and maintenance manual

Contents

For more information visit: www.eaton.com IB140036ENInstruction BookletPage 6 Effective: October 2014 O&M Manual for 40-1200A (480/600 Vac) ATC-900 3-Position,Open/Closed Transition Contactor Based Transfer SwitchThere are three optional accessory items that also interface tothe ATC-900, the DCT module, the I/O Module, and the EthernetModule. See the ATC-900 manual for specific instructions onthese modules. A small description of each follows:The DCT (Direct Current-Current Transformer) Module is a cur-rent transformer interface to the ATC-900 allowing current to bemetered along with voltage and frequency that is already inte-grated into the controller. The DCT Module simply secures to theATC-900 back using four #8 x less than 1/2 inch screws. Theribbon cable then plugs into J14. When equipped with a DCTmodule, the ATC-900 serves as a multifunction power meter andprovides multifunction measurement of most electrical parame-ters including voltage, current, power, frequency, energy, etc.The meter capabilities is specified as a 1% class energy meter.The information is displayed on the color display on the front ofthe ATC-900. Readings can also be monitored through the RS-485 modbus on the controller. The DCT is used to measure loadcurrent when selective load shed is enabled. The DCT Modulealso has a 24 Vdc input for powering the ATC-900 controller. If120 VAC and 24 Vdc is supplied to the controller simultane-ously, then the 120 Vac will be the powering supply.The I/O Module (Figure 16B) is an extension of the ATC-900 con-troller's programmable inputs and outputs. Each I/O Module hasfour inputs and four outputs. The inputs are DC wetted (50 Voltsat 10 ma) connections for various functional inputs. Up to fourmodules can be used with the ATC-900 giving the user up to 20inputs or 20 outputs (including the controller's standard I/Os).Depending on the options selected with the transfer switch,some of the I/Os may be required to be fixed from the factory sothat the user cannot change that particular input or output.The Ethernet Communications Module is an accessory that oper-ates as a communicating device in conjunction with a the ATC-900 via an Ethernet network. The Ethernet Module providesEthernet TCP/IP.Section 2: Receiving, Handling, andStorage2.1 ReceivingEvery effort is made to ensure that the ATS equipment arrives atits destination undamaged and ready for installation. Packing isdesigned to protect internal components as well as the enclo-sure. Care should be exercised, however, to protect the equip-ment from impact at all times. Do not remove the protectivepackaging until the equipment is ready for installation.When the ATS equipment reaches its destination, the customershould inspect the shipping container for any obvious signs ofrough handling and/or external damage that occurred duringtransportation. Record any external and internal damage forreporting to the transportation carrier and Eaton, once a thoroughinspection is complete. All claims should be as specific as possi-ble and include the catalog and General Order numbers.A shipping label affixed to the shipping container includes a vari-ety of equipment and customer information, such as GeneralOrder Number and catalog numbers. Make certain that this infor-mation matches other shipping paper information.Each transfer switch is packed securely with appropriate ship-ping materials to prevent damage during shipment. Do notremove or discard the packing material until the equipment isready for installation.Once the top packaging is removed from the shipment, theenclosure door can be opened. A plastic bag of documents willbe found in the enclosure, usually attached to the inside of theenclosure. Important documents, such as test reports, wiringdiagrams, and appropriate instruction leaflets, are enclosedwithin the bag and should be filed in a safe place.2.2 HandlingAs previously mentioned, ATS equipment is packaged for forkliftmovement. Protect the equipment from impact at all times andDO NOT double stack.Once the equipment is at the installation location and ready to beinstalled, packaging material can be removed and discarded.Once the enclosure is unbolted from the wooden pallet, it can behand moved to its installation position. Be careful not to damagethe top or bottom enclosure mounting flanges. Refer to Section4 of this manual for specific installation instructions.2.3 StorageAlthough well packaged, this equipment is not suitable for out-door storage. The equipment warranty will not be applicable ifthere is evidence of outdoor storage. If the equipment is to bestored indoors for any period of time, it should be stored with itsprotective packaging material in place. Protect the equipment atall times from excessive moisture, construction dirt, corrosiveconditions, and other contaminants.It is strongly suggested that the package-protected equipment bestored in a climate-controlled environment with temperaturesfrom -30 to 85°C (-22 to 185°F) and with a relative humidity of80% or less. DO NOT, under any circumstance, stack otherequipment on top of a transfer switch equipment enclosure,whether packaged or not.