When using seconds pulse synchronization, only year-month-day-hour-minute-second is written. The relay's real-time clock will round to the nearest whole second or whole minute.
depending on whether seconds pulse synchronization or minutes pulse synchronization is used. When setting the time via the HMI, the entire time will be written to the relay's real-time clock.
If the difference between the synchronization pulse and the relay's real-time clock for seconds pulses exceeds ±0.05 seconds, or for minutes pulses exceeds ±2 seconds, the synchronization pulse will be rejected.
Time synchronization is always triggered on the rising edge of the digital input signal. The time is adjusted by accelerating or decelerating the relay clock.
In this way, the clock neither stops nor jumps suddenly during time adjustment.
Typical accuracy of time synchronization via digital inputs is ± 2.5 ms for second pulse synchronization and ± 5 ms for minute pulse synchronization.
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