Real Time Clock (Rtc) - Siemens SINAMICS G120 Operating Instructions Manual
Low voltage converters, chassis and wall/panel mounted devices with cu230p-2 control units
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Also See for SINAMICS G120:
- List manual (1256 pages) ,
- Manual (732 pages) ,
- Operating instructions manual (550 pages)
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6.7.11
Real time clock (RTC)
The real time clock is the basis for time-dependent process controls, e.g.:
● To reduce the temperature of a heating control during the night
● Increase the pressure of a water supply at certain times during the day
Function and settings
The real time clock starts as soon as the Control Unit power supply is switched on for the
first time. The real time clock comprises the time in a 24 hour format and the date in the
"day, month, year" format.
After a Control Unit power supply interruption, the real time clock continues to run for approx.
five days.
If you wish to use the real time clock, you must set the time and date once when
commissioning.
If you restore the inverter factory setting, the real time clock is not reset.
Parameter
p8400
p8401
p8402
r8403
Converter with CU230P-2 Control Units
Operating Instructions, 04/2015, FW V4.7 SP3, A5E34257946B AB
Real time clock (RTC)
RTC time (Factory setting: 0)
[0]
Hour (0 ... 23)
[1]
Minute (0 ... 59)
[2]
Second (0 ... 59)
RTC date (Factory setting: 1.1.1970)
[0]
Tag: 1 ... 31.
[1]
Month 1 (January) ... 12 (December)
[2]
Year: 1970 ... 9999
RTC daylight saving time setting
[0]
Difference between daylight saving time and standard time (factory setting: 0 h)
[1]
Start of month (factory setting: 3), 1 (January) ... 12 (December)
[2]
Start of week of month (factory setting: 6)
1: Tag 1 ... 7, 2: Tag 8 ... 14, 3: Tag 15 ... 21, 4: Tag 22 ... 28, 6: Last seven
days of the month
[3]
Start of weekday (factory setting: 7), 1 (Monday) ... 7 (Sunday)
[4]
Start of hour (factory setting: 2)
[5]
End month (factory setting: 10)
[6]
End week of month (factory setting: 6)
1: Tag 1 ... 7, 2: Tag 8 ... 14, 3: Tag 15 ... 21, 4: Tag 22 ... 28, 6: Last seven
days of the month
[7]
End weekday (factory setting: 7), 1 (Monday) ... 7 (Sunday)
[8]
End hour (factory setting: 3)
RTC daylight saving time difference actual [hours]
Displays the actual difference between standard time and daylight saving time.
Advanced commissioning
6.7 Application-specific functions
281
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