ABB REU 610 Technical Reference Manual

Also see for REU 610: Installation manual Operator's manual Technical reference manual Technical reference manual Operator's manual

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ABB REU 610 Technical Reference Manual Manual pdf 18 page image

W ARNINGB ATTERY LOWA040279Fig. 5 .1.1.7 .-2 W arning w ith tex t mes s ageW ARNINGFAULT CODE: 33A040280Fig. 5 .1.1.7 .-3 W arning w ith nu meric codeFor fault codes, refer to 5 .1.18 . S elf- supervision ( IR F ) system5.1. 1. 8 . T i m e s yn c h r on i z ati onTime synchronization of the relay’s real- time clock can be realized in twodifferent ways: via serial communication using a communication protocol orvia a digital input.When time synchronization is realized via serial communication, the time iswritten directly to the relay’s real- time clock.Any digital input can be configured for time synchronization and used foreither minute- pulse or second- pulse synchronization. The synchronizationpulse is automatically selected and depends on the time range within whichthe pulse occurs. Two detected pulses within acceptable time range arerequired before the relay activates pulse synchronization. R espectively, if thesynchronization pulses disappear, the relay takes time that corresponds to thetime range of four pulses before de- activating pulse synchronization. Thetime must be set once, either via serial communication or manually via theHMI.When the time is set via serial communication and minute- pulsesynchronization is used, only year- month- day- hour- minute is written to therelay’s real- time clock, and when second- pulse synchronization is used, onlyyear- month- day- hour- minute- second is written. The relay’s real- time clockwill be rounded to the nearest whole second or minute, depending on whethersecond- or minute- pulse synchronization is used. W hen the time is set via theHMI, the entire time is written to the relay’s real- time clock.18REU 610 Voltage RelayTechnical Reference Manual1MRS755769