Lenze i700 - Manual (Page 51)

Lenze · i700 servo inverter · Reference manual · DMS 1.5 EN · 03/2014 · TD05
51
4 Device settings
4.6 Real-time information (distributed clock)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Subindex 4: ECAT DC: Current time
Display of the time information the i700 servo inverter is currently using (time of the device if you will).
• The contents are updated every time this subindex is read.
• Depending on the status (see subindex 1), this time information is more or less precise:
• In the "No real-time information received yet" status, the clock is generally slow compared to real time. This
may mean weeks or even months if the i700 servo inverter was switched off for a long time.
• In the "Receive at least one piece of real-time information" status, the clock is accurate to the second unless
the time of the last time information (subindex 3) does not date back several days.
• In the "Synchronous - cyclically updated" status, the clock is accurate to the μs with the clock of the higher-
level master.
• Due to the synchronisation with an external master, this clock is also able to go backwards. TwinCAT uses the
PC clock e.g. as its time base!
Setting the time:
• The clock is set by writing a value.
• If the i700 servo inverter is in the "No real-time information received yet" status before the writing process, it
will then change to the "Receive at least one piece of real-time information" status.
• If the i700 servo inverter is in the "Synchronous - cyclically updated" status during the writing process, it will
ignore the written value.
Setting range
(min. value | unit | max. value)
Lenze setting
0 ns 2 64 -1
 Write access  CINH  OSC  P  RX  TX UNSIGNED_64