P12x/EN T/Eb6 - Schneider - error

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P12x/EN FT/Eb6Page 60/62User GuideMiCOM P120/P121/P122/P1233. WIRINGMiCOM P120 range of relays have the same terminal layout for common elements. Thewiring diagram for each model is provided in Appendix 1 of the Technical Guide.3.1 Auxiliary supplyThe auxiliary power supply for the MiCOM P120, P121, P122 & P123 relays can be eitherdirect current with a voltage range of 24-60 VDC, 48-250 VDC,or alternative current with avoltage range of 48-250 VAC/ 50-60 Hz or 24-250Vdc/24-240Vac. The voltage range (Ua) isspecified on the adhesive paper label under the top hinged cover on the front of the relay.The auxiliary power supply must be connected only to terminals 33 and 34.3.2 Current measurement inputsMiCOM P120, P121, P122 and P123 have 3 phase and 1 earth current inputs available for 1and 5 Amps rated CTs. On each one of these relays, it is possible to combine 1 and 5 Ampcurrent inputs together (i-e a mix between 1A for earth fault and 5A for phase connections)(refer to the wiring diagram).NOTE:3.3 Logic inputsAll phase inputs must have the same rating (1 or 5 Amps).The number of logic inputs depends on the relay model. The relays have programmableopto-isolated logic inputs, which can be assigned to any available label or function.Logic inputs for each relay model:Model P120 P121 P122 P123Logic outputs 2 2 3 5On the same MiCOM P12x relay, the user can mix different voltage levels as logic inputs arefully independent (e.g. Uaux = 48-250 Vdc, Input 1= 48 Vdc, Input 2-5= 110 Vdc).If the user sets the supply of the logic input as AC they are active from 24 to 240Vac.The automation functions that can be assigned to these logic inputs can be selected from theAUTOMAT. CTRL Menu.NOTE:3.4 Output relaysDo not forget to select in the CONFIGURATION/Configuration InputsMenu weither the voltage input is "AC" or "DC". .The number of logic outputs depends on the relay model. The relays have configurable logicoutputs, which can be assigned to any available function.The number of logic outputs available for each relay model is presented in the followingtable:Model P120 P121 P122 P123Logic outputs 5 5 7 9The first logic output (RL0) is dedicated to indicate a relay fault (Watchdog, WD) and is notpart of this table.The normally closed (NC) contact of the Watchdog (RL0) can not be configured. The othercontacts can be configured to be activated on activation of the different functions available inthe relay. A basic output matrix is included in the relay.Some logic outputs have changeover contacts (RL1 and RL2). The other relays (RL3, to RL9) are normally open contacts.The protection and control functions that can be assigned to these output relays can beselected from the AUTOMAT. CTRL Menu.
User GuideP12x/EN FT/Eb6MiCOM P120/P121/P122/P123 Page 61/623.5 Communication3.5.1 RS485 rear communication portAll MiCOM relays have an RS485 rear communication port.The terminals 29-30-31-32 are dedicated to the RS485 communication port. See wiringdiagrams in chapter P12y/EN CO of the Technical Guide.3.5.2 RS232 front communication port (P120, P121, P122, P123)MiCOM P120, P121, P122 and P123and P123 relays provide a RS 232 communication port.This port is dedicated to Setting software MiCOM S1.The cable between the relay and the PC is a standard RS 232 shielded-cable.The relay requires a RS232 cable with a 9-pin male connector.The RS232 cable has to be wired as indicated below:RS232 PC PORT9 pin male connectorMiCOM P120/1/2/3 end9 pin female connectorP0073ENbFIGURE 3: FRONT PANEL PORT COMMUNICATION RS232 CABLE WIRINGA USB/RS232 cable can also be used to communicate to the relay.
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MiCOMP120/P121/P122/P123Overcurrent
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