System Runtime - Siemens SINAMICS G120 Operating Instructions Manual

Alarms, faults and system messages

11.2 System runtime

11.2 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 365).
Parameters
r2114[0]
r2114[1]
You cannot reset the system runtime.
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Description
System runtime (ms)
System runtime (days)
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB