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MiCOM P632
Priority Control of Time
Synchronization
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MiCOM P632
Priority Control of Time
Synchronization
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The protection device provides several ways of synchronizing the internal clock:
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Telegram with the time of day via the communication interface COMM1/IEC (full time) |
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Telegram with the time of day via the communication interface COMM2/PC (full time) |
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IRIG-B Signal (IRIGB; time of day only) |
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Impulse every minute via a binary signal input (MAIN), see Fig. 3-70 and the preceding section. |
A primary and a backup source for time of day synchronization may be set, where both provide the four options listed above.
MAIN: Prim.Source TimeSync
MAIN: BackupSourceTimeSync
With this feature synchronization occurs continuously from the primary source as long as time synchronization telegrams are received within a time-out period set at MAIN: Time sync. time-out.
When selecting the time telegram via IEC as the primary source the device will expect time synchronization telegrams from server SNTP 2 after server SNTP 1 has become defective, before it will switch over to the backup source.
Time synchronization occurs solely from the primary source when the time-out stage is blocked.