Siemens MICROMASTER 420 - Page 66

International English 5. SYSTEM PARAMETERS
66 MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0
Parameter
Number
Parameter Name
Min
Max
[Default]
Units
♦
♦♦
♦P0003 User
Access Level
♦
♦♦
♦P0004 Setting
♦
♦♦
♦Changeable
♦
♦♦
♦Status
r0947 Last fault code
Displays the fault history
In the following diagram:
ACTIVE FAULT
CODES
MOST RECENT
FAULT CODES - 1
MOST RECENT
FAULT CODES - 2
MOST RECENT
FAULT CODES - 3
F1e
F1e
F1e
F1e
F1e
F1e
F1
F2
0
1
2
3
4
5
6
7
“F1” is the 1
st
active fault (not yet acknowledged).
“F2” is the 2
nd
active fault (not yet acknowledged).
“F1e” is the occurrence of the fault acknowledgement of F1 & F2 – this moves the values in
the 2 indices down to the next pair of indices where they are stored.
The most recent fault events are stored in indices 0 and 1.
For example:
If the inverter trips on undervoltage and then receives an external trip before the
undervoltage is acknowledged you will get:
Index 0 = 3 Undervoltage
Index 1 = 85 External trip
Whenever a fault is put into index 1 (F1e) the existing fault history is moved as shown in the
diagram.
Note
See list of fault codes list in Section 6
Index 2 is only used if a 2
nd
fault occurs before the 1
st
is acknowledged.
-
-
[-]
-
2
21
Factory resetP0970
Resets all parameters to their default values. To do this, you need to set P0010=30, then
P0970=1
P0100 is set according DIP Switch setting
0
1
[0]
-
1
30
'
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