User manual EATON UPS 20 KVA

[. . . ] User'sGuide UPS20-40kVA, 230/400V50/60Hzoutput (3-phaseinput/output) ©2006EatonCorporation AllRightsReserved The contents of this manual are the copyright of the publisher and may not be reproduced (even extracts) unless permission granted. Every care has been taken to ensure the accuracy of the information contained in this manual, but no liability can be accepted for any errors or omission. The right to make design modifications is reserved. User'sGuideUPS20-40kVA, 230/400V50/60Hzoutput (3-phaseinput/output) 1025358 revision D 1. Safetyinstructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] It provides basic monitoring, data logging, notification and event actions for a single UPS solution. The connection procedure for the RS-232 interface port is following: 1. Connect the RS-232 communication cable to the serial interface on the UPS. Run the UPS software installation disk (Software Suite CD) on the computer. Note! IfcommunicationdoesnotworkchoosethecorrectbitratefromtheLCDdisplay. Pleaserefertotheoptionalsoftwaredocumentationforappropriatebitratesettings. 1025358 Revision D UPS 20-40 kVA, 230/400 V 50/60 Hz output User's Guide 23 Externalcontrolconnections The UPS has an input/output interface for direct communication with your computer system. The cables connected to these terminals should be connected to cable clips. Input and output terminals have a functional isolation from terminal to terminal. They are connected to the chassis through individual 1 M resistors. Figure11External control cable connections to the UPS. Note! Payattentiontoproperpolarityifoneisusingasemiconductorswitchtype. Arelay orothermaintenancecontrolisapreferredmethod. EmergencyPowerOff(EPO) This input is used to shut down the UPS from a distance. There are two modes of operation, normally closed at X52 and normally open at X12. Remote shut down terminal X52 pins 1 and 2 are as factory default linked (X12 is open). When the loop on X52 is opened, the logic circuitry will immediately shut down the UPS output and open the battery breaker (F1). Note! EPOdoesnotnecessarilydisconnectsupplytoloadwhenunitisoninternalor externalbypass. Quaranteeddisconnectionofbypasssupplyhastobethrougha separatedisconnectswitchlocatedinthesupplyingswitchgearcabinet. 24 UPS 20-40 kVA, 230/400 V 50/60 Hz output User's Guide 1025358 Revision D In order to have the UPS running again pins 1 and 2 of connector X52 have to be reconnected and the UPS started manually. The EPO shall not be galvanically connected to any mains connected circuits. If the use of normally open EPO operation is desired, the loop on X52 has to be retained and the normally open EPO switch connected to X12. Operation is as above. Relayoutputs The UPS incorporates a programmable relay output with potential free contacts at X57 for remote alarm indications. Additional (4) relay outputs can be obtained with the XSlot compatible AS/400 Relay Module. For more information, see the section "Using relay outputs" . Warning! Therelaycontactsmustnotbedirectlyconnectedtomainsrelatedcircuits. Reinforcedinsulationtothemainsisrequired. Programmablesignalinputs The UPS incorporates two programmable inputs (X44, X45). The pins must be shorted with maximum resistance of 10 ohm in order to activate the specific input. Note! Pleasenotethepolarityoftheinputsasindicatedintheexternalcontrol connectionsifusedwithapolaritycontrol. The default and programmable settings for the signal inputs are a) b) DisableBypassOperation If active the automatic transfer to the static bypass is prevented. In case of mains power outage the discharge of batteries is supported. RemoteON/OFF If active the UPS output turns off regardless of mode of operation. Auxiliary power, fan, communications and rectifier/battery charger shall remain functional. RequestBypass If active the UPS transfers to bypass if bypass voltage, frequency and synchronisation are ok. c) d) 1025358 Revision D UPS 20-40 kVA, 230/400 V 50/60 Hz output User's Guide 25 e) f) g) h) i) j) k) RequestNormal If active the UPS transfers to inverter operation if not prohibited by EPO or alarm condition. [. . . ] Make sure UPS modules have been started according to chapter `Start-up procedure', . Make sure service switches S1. . . S2/S4 in the SPM are in `ON' position. Verify the transfer by checking that the yellow bypass LED is turned off. Figure29. System bypass switch of the optional SPM Shut-downprocedure While system is running and UPSs are supporting load, there are two different ways to perform a shutdown. The user can select either to shutdown the whole system or only one UPS. [. . . ]