MiCOM P921/P922/P923 - Schneider - error

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P92x/EN CM/F22Page 14/26Commissioning GuideMiCOM P921/P922/P9235. SETTING CHECKSThe setting checks ensure that all of the relay settings (i.e. the relay’s protection and controlsettings and programmable logic equations) for the particular installation have been correctlyapplied to the relay.5.1 Applying the settings to the relayThere are two methods of applying the settings:• Transfer them from a pre-prepared setting file to the relay using a portable PC runningthe appropriate software via the relay’s front RS232 port, located under the bottomcover, or via the rear communications port.This method is preferred for transferring function settings as it is much faster and thereis less margin for error.NOTE:If a setting file has been created for the particular application andprovided on a diskette, this will further reduce the commissioning time.• Enter them manually via the relay’s operator interface.5.2 Checking the relay settingsThe settings applied to the relay should be carefully checked to ensure they have beenentered correctly.There are two methods of checking the settings:• Extract the settings from the relay using a portable PC running the appropriatesoftware via the front RS232 port, located under the bottom cover, or via the rearcommunications port:−−with a KITZ protocol converter connected if the rear protocol is Kbus,with a standard RS232/RS485 converter if the rear protocol is Modbus.• Compare the settings taken from the relay with the original application-specificsettings (for cases where the customer has only provided a printed copy of therequired settings but a portable PC is available).• Step through the settings using the relay's operator interface and compare them withthe original settings.
Commissioning GuideP92x/EN CM/F22MiCOM P921/P922/P923 Page 15/265.3 Testing the "Phase overvoltage protection" and "Phase undervoltage protection"functions5.3.1 Wiring diagramAuxiliarypower supply +_3334WD373536WatchdogRL1642RL1StopchronoAuxiliarypower supplyA+ _41MiCOM P92*RL2RL3121081614RL2RL3VoltagesourceBC42434445RL4RL5201831RL4RL5NSee note 3464950See note 1RL6RL7RL8759111315RL6RL7RL8EL1EL2EL3EL4EL522242628171921232527See note 2*LEDs29303132+_4 programmableLEDs-Case earthRS 485communication port(Modbus, Courier,CEI60870-5-103)Notes :(1) Supplementary hardware for MiCOM P922-P923 relay(2) Supplementary hardware for MiCOM P922-P923 relay(3) 3VT assembly, Phase-Neutral(* For the last relayof the RS 485 link,connect terminal 30 to terminal 32)P0408ENaFIGURE 2: (V>) AND (V>>) STAGE TEST
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MiCOM P921/P922/P923 - Schneider - error

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