Safety Integrated Functional Examples - February 2007 A&D CD MM 2

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Specifications	Safety Integrated Functional Examples - February 2007 A&D CD MM 2
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Funktionsbeispiel Nr. CD-FE-I-029-V10-DE 69 Ex. No. 3.5 NoteDiagram Overload, thermal motor model The motor winding temperatu

Specifications	Safety Integrated Functional Examples - February 2007 A&D CD MM 2
Outline	Safety Integrated Functional Examples - March 2007 Contents Safety-related controls - SIRIUS Safety Integrated Functional examples with SIRIUS 3TK28 safety relay CD-FE-I-001-V11-EN - E-Stop with manual start Category 2 acc. to EN 954-1 with a SIRIUS 3TK28 safety relay CD-FE-I-002-V10-EN - E-Stop with monitored start Category 4 acc. to EN 954-1with a SIRIUS 3TK28 safety relay CD-FE-I-003-V11-EN - Protective door monitoring with automatic start Category 2 acc. to EN 954-1 with a SIRIUS 3TK28 safety relay CD-FE-I-004-V10-EN - Protective door monitoring with automatic start Category 4 acc. to EN 954-1 with a SIRIUS 3TK28 safety relay CD-FE-I-017-V10-EN - E-Stop with monitored start Category 2 acc. to EN 954-1 with a SIRIUS 3TK28 safety relay with contactor relays CD-FE-I-018-V10-EN - E-Stop with monitored start Category 2 acc. to EN 954-1 with/without operational switching with a SIRIUS 3TK28 safety relay with contactor relay CD-FE-I-019-V10-EN - E-Stop with monitored start Category 4 acc. to EN 954-1 with/without operational switching with a SIRIUS 3TK28 safety relay with contactor relays CD-FE-I-020-V10-EN - Protective door monitoring with automatic start Category 2acc. to EN 954-1 with a SIRIUS 3TK28 safety relay with contactor relays CD-FE-I-021-V10-EN - Protective door monitoring with automatic start Category 2 acc. to EN 954-1 with/without operational switching with a SIRIUS 3TK28 safety relay with contactor relays CD-FE-I-022-V10-EN - Protective door monitoring with automatic start Category 4 acc. to EN 954-1 with/without operational switching using a SIRIUS 3TK28 safety relay with contactor relays CD-FE-I-023-V10-EN - E-Stop with monitored start, protective door monitoring with automatic start and service mode, Category 2 acc. to EN 954-1 with a SIRIUS 3TK2845 safety relay CD-FE-I-024-V10-EN - E-Stop with monitored start, protective door monitoring with automatic start and service mode, Category 4 acc. to EN 954-1 with a SIRIUS 3TK2845 safety relay
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Content	Funktionsbeispiel Nr. CD-FE-I-029-V10-DE 69 Ex. No. 3.5 NoteDiagram Overload, thermal motor model The motor winding temperature is calculated from the measured mo- tor currents and the device parameters, rated operating current and shutdown class. It is therefore possible to identify as to whether the motor is overloaded or is operating in the normal operating range. Default: Shutdown without restart The pause time is the time that is specified for cooling-down after op- erational shutdowns, i.e. not as a result of overload trips. After this time has expired, the thermal memory of the motor starter is ·changed to 0 % for motor temperature rise < 50% ·reduced to 50 % for motor temperature rise < 50 % This means that frequent starting attempts are possible (jog mode). Zero current detection Zero current is detected if the motor current in all phases is <18.75 % of the selected rated operating current. Default: Shutdown Dissymmetry Three-phase induction motors respond to low levels of dissymmetry of the line supply voltage by draining a higher non-symmetrical cur- rent. This therefore increases the temperature of the stator and rotor windings. The dissymmetry limit value is a percentage value by which the motor current in the individual phases may deviate. Dissymmetry is present if the difference between the smallest and the highest phase current is greater than 30 %. Default: Shutdown
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