Parameter Real-time clock (RTC)
p8405 RTC activate/deactivate alarm A01098 (Factory setting: 1)
Alarm for non synchronous time, e.g. after a longer power supply interruption.
0: No alarm
1: Alarm A01098
Accept the real-time clock in the alarm and fault buffer
Using the real-time clock, you can track the sequence of alarms and faults over time. When
an appropriate message occurs, the inverter converts the real-time clock into the UTC time
format (Universal Time Coordinated):
Date, time ⇒ 01.01.1970, 0:00 + d (days) + m (milliseconds)
The inverter takes the number "d" of the days and the number "m" of the milliseconds in the
alarm and fault times of the alarm and/or fault buffer.
Alarms, faults and system messages (Page 395)
Converting UTC to RTC
An RTC can again be calculated in the UTC format from the saved fault or alarm time. In the
Internet, you will find programs to convert from UTC to RTC, e.g.
UTC to RTC (http://unixtime-converter.com/)
Example:
Saved as alarm time in the alarm buffer:
r2123[0] = 2345 [ms]
r2145[0] = 14580 [days]
Number of seconds = 2345 / 1000 + 14580 × 86400 = 1259712002
Converting this number of seconds to RTC provides the date: 02.12.2009, 01:00:02.
The times specified for alarms and faults always refer to standard time.
Advanced commissioning
6.22 Real time clock (RTC)
Converter with the CU230P-2 Control Units
294 Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE
To Next Page
Loading...
Need help?
General