ABB REM 610 Technical Reference Manual
Also see for REM 610: Operator's manualProduct guideInstallation manualProduct guideTechnical reference manual
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Contents
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?//@7: ;?A040279Fig. 5.1.1.11.-2 Warning with text message?//@- : ;A:::: 1 #A040281Fig. 5.1.1.11.-3 Warning with numeric codeFor fault codes, refer to Section 5.1.16. Self-supervision (IRF) system.5.1.1.12. Time synchronizationTime synchronization of the relay’s real-time clock can be realized in two differentways: via serial communication using a communication protocol or via a digitalinput.When time synchronization is realized via serial communication, the time is writtendirectly to the relay’s real-time clock.Any digital input can be configured for time synchronization and used for eitherminute-pulse or second-pulse synchronization. The synchronization pulse isautomatically selected and depends on the time range within which the pulse occurs.The time must be set once, either via serial communication or manually via theHMI.When the time is set via serial communication and minute-pulse synchronization isused, only year-month-day-hour-minute is written to the relay’s real-time clock, andwhen second-pulse synchronization is used, only year-month-day-hour-minute-second is written. The relay’s real-time clock will be rounded to the nearest wholesecond or minute, depending on whether second- or minute-pulse synchronization isused. When the time is set via the HMI, the entire time is written to the relay’s real-time clock.If the synchronization pulse differs more than ±0.05 seconds for second-pulse or ±2seconds for minute-pulse synchronization from the relay’s real-time clock, thesynchronization pulse is rejected.24REM 610REM 610 Motor Protection RelayTechnical Reference Manual - ANSI Version1MRS755537 |
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