Status Messages; Overview, Evaluating The Inverter State; System Runtime - Siemens SINAMICS G120 CU240B-2 Operating Instructions Manual

Functions

7.8 Status messages

7.8 Status messages
7.8.1

Overview, evaluating the inverter state

Information about the inverter state (alarms, faults, actual values) can be output via inputs
and outputs and also via the communication interface.
Details on evaluating the inverter state via inputs and outputs are provided in Section
Configuring the terminal block (Page 93).
The evaluation of the inverter state via the communication interface is realized using the
inverter status word. Details on this are provided in the individual sections of Chapter
Connection to a fieldbus (Page 103).
7.8.2

System runtime

By evaluating the system runtime of the inverter, you can decide whether you must replace
components subject to wear such as fans, motors and gear units.
Principle of operation
The system runtime is started as soon as the Control Unit power supply is switched-on. The
system runtime stops when the Control Unit is switched off.
The system runtime comprises r2114[0] (milliseconds) and r2114[1] (days):
System runtime = r2114[1] × days + r2114[0] × milliseconds
If r2114[0] has reached a value of 86,400,000 ms (24 hours), r2114[0] is set to the value 0
and the value of r2114[1] is increased by 1.
Using system runtime, you can track the sequence of faults and alarms over time. When a
corresponding message is triggered, parameter values r2114 are transferred unchanged to
the corresponding parameters of the alarm or fault buffer, see chapter entitled Alarms, faults
and system messages (Page 243).
Parameters
r2114[0]
r2114[1]
You cannot reset the system runtime.
186
Description
System runtime (ms)
System runtime (days)
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA