GE GEK-106465A instruction manual Circuit Supervision and Contact SEAL-IN Circuits

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I/O MODULES DESCRIPTION

5. INPUT/OUTPUT MODULES DESCRIPTION

5.1.CIRCUIT SUPERVISION AND CONTACT SEAL-IN CIRCUITS

5.1.1. CIRCUIT SUPERVISION

CIO units can include type 2 boards. This type of board includes 4 voltage detectors for implementing tripping or opening circuit supervision control logics.

5.1.2. CONTACT SEAL-IN

The current seal-in circuit is used for verifying the current condition in a circuit during the time that the tripping contact remains closed. If the current in the tripping circuit is maintained over 100 mA, the function is sealed independently of the status of the function that caused the trip.

This current seal-in function in tripping circuits is mainly used in applications where auxiliary contacts 52/a (in charge of cutting the current in the tripping circuit) are very slow. This may cause that, once the function that produced the trip is reset, the relay contact will open before the breaker auxiliary 52/a, even if the time delay of the first has expired.

By using this function, we prevent the relay contact from cutting the current (basically inductive and high) from the tripping circuit, which could cause damage to the unit, as these currents exceed the nominal breaking characteristics.

The circuit and the current threshold of the function are as follows:

100 mA min

I

FIGURE 5-1 CURRENT SUPERVISION

GEK-106465A

CIO Remote CAN Digital I/O Module

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Contents CIO Table of Contents INPUT/OUTPUT Modules Description Circuit Continuity Supervision InputsImportant Procedures CIO Front ViewInspection Checklist Identification Label A4454P5EUROPE, Middle East and Africa GE Multilin AMERICA, Asia and Australia GE MultilinSafety Instructions Overview Introduction to F650 and F600 Family of RelaysHardware Architecture Software ArchitectureCommunications Architecture Summary of Features Product DescriptionOrdering Code CIO DescriptionTechnical Specifications Packaging and Weight Type TestsCategory Standard Class Test ApprovalsPower supply Input/Output module Module DescriptionMechanical Description MountingRear Panel Mounting Rear Cover Description Wiring External ConnectionsWiring Diagram for Model CIOH1J1 226B5113F2 Boards Board OptionMixed Termina Inputs Supervision OutputsOperand Description SUPCOIL2Without Supervision With Current Supervision with SEAL-IN With Simple Voltage Supervision Internal State Circuit Output Breaker Operand StatusHardware Hardware With Double Voltage Supervision Operand Contact INPUT0015 SUPCOIL2 52/a 52/bStatus of Involved Elements Inputs to F650 Front Indicators SoftwareUser Interfaces Contact SEAL-IN Circuit Supervision and Contact SEAL-IN CircuitsCircuit Supervision Control Settings for INPUTS/OUTPUTS INPUT/OUTPUT Boards SettingsGeneral Board Settings Settings relative to Inputs Input LogicSettings relative to Outputs Output LogicInput activation signals Contact Inputs INPUTS/OUTPUTS StatusInput Status Mixed Board Supervision Board Board F, G, H, J TypeContact Outputs activation signals Contact Output Activation Signals Contact Output OperatesContact Output Status Board F, G, H, JContact Output Reset Signals Contact Output Resets Contact Output ResetsIO Board Status Board StatusGeneral Considerations on the Power Supply Network Visual InspectionIndicators Power Suply TestingIsolation Tests Source OptionSettings/Control Elements/Inputs Outputs/Board Communication with the Master UnitInputs and Outputs Digital InputsContact Outputs Circuit Continuity Supervision InputsCoil Latching Circuits