Siemens SINAMICS G120 CU230P-2 HVAC Operating Instructions Manual page 296

Alarms, faults and system messages
9.3 Faults
Parameters of the fault buffer and the fault history
Table 9- 7
Parameter
r0945
r0948
r0949
p0952
r2109
r2130
r2131
r2133
r2136
The motor cannot be switched-on
If the motor cannot be switched-on, then check the following:
● Is a fault present?
● Does p0010 = 0?
● Is the inverter reporting the "ready to start" status (r0052.0 = 1)?
● Is the inverter missing enabling (r0046)?
● Are the command and setpoint sources for the inverter (p0015) correctly parameterized?
● Do the motor and inverter match?
294
Important parameters for faults
Description
Fault code
Displays the numbers of faults that have occurred
Fault time received in milliseconds
Displays the time in milliseconds when the fault occurred
Fault value
Displays additional information about the fault
Fault cases, counter
Number of fault cases that have occurred since the last acknowledgement
The fault buffer is deleted with p0952 = 0.
Fault time removed in milliseconds
Displays the time in milliseconds when the fault occurred
Fault time received in days
Displays the time in days when the fault occurred
Actual fault code
Displays the code of the oldest fault that is still active
Fault value for float values
Displays additional information about the fault that occurred for float values
Fault time removed in days
Displays the time in days when the fault was removed
If yes, then remove the fault cause and acknowledge the fault
If not, the inverter is e.g. still in a commissioning state.
In other words, where is the inverter getting its speed setpoint and commands from
(fieldbus or analog input)?
Compare the data on the motor's nameplate with the corresponding parameters in the
inverter (P0300 ff).
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD