Siemens CU240B-2 Parameter Manual page 654

Faults and Alarms
Faults and Alarms – Overview
3.1 Faults and Alarms – Overview
3.1.1 General information
Indicating fault and alarm messages (faults and alarms)
A message comprises a letter followed by the relevant number.
The letter characterizes the message type and has the following meaning:
 A means "Alarm"
 F means "Fault"
 N means "No Report" or "Internal Report"
 C means Safety message
Brackets including the letters A, F, or N indicate that the message type can be
changed, e.g. A01016 (F) means that the alarm A01016 can be parameterized as
a fault. The letter in brackets shows which message type can be adjusted via
parameters p2118 and p2119.
Example:
p2118[5] = 1016 (alarm A01016 (F) "Firmware changed")
p2119[5] = 1 (p2119 = 1is equivalent to fault (F))
In this case the alarm "Firmware changed" will become a fault.
Faults are stored in parameter r0945/r0947, under their code number (e.g.
F01003 = 1003). The associated fault value can be found in parameter r0949.
The value 0 is entered if a fault has no fault value. It is furthermore possible to
read out the point in time that a fault occurred (r0948) and the number of faults
(p0952).
Alarms are stored in parameter r2110/r2122, under their code number (e.g.
A01503 = 1503) and can be read out from there. The associated alarm value can
be found in parameter r2124 and the time of alarm occurence in r2123.
3-654
SINAMICS G120 / Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
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