120 MG.30.A7.02 - VLT
®
is a registered Danfoss trademark
Parameter description
6..Service and diagnostics
Thermistor input activated, see
parameter 400/terminal 16
602
Fault memory
(Alarm memory)
01234- -7
Fault code [0]
Time [1]
Value [2]
Function:
(Index 000.00-007.02)
Storage of data on trip.
Description of choices:
Fault code indicates the reason for a trip by
a figure code between 1 and 15:
✮ = Factory setting. Text in ( ) = Display text.
The figures in [ ] are used in bus communication
01234- -19
Digital input [0]
Control word [1]
Status word [2]
Reference % [3]
Frequency out [4]
Phase current [5]
D.C. voltage [6]
601
Data log
(Data log)
(Continued)
Fault code Alarm
1 Inverter fault
2 Overvoltage
3 Undervoltage
4 Over-current
5 Earth fault
6 Excess temperature
7 Inverter overloaded
8 Motor overloaded
9 Current limit
10 Trip locked
11 Control card or option card fault
13 Auto-optimization fault
14 DC suppley fault
15
Time states the value of the total number
of operatin hours on trip. Display range
0.0-999.9.
Value states e.g. at what voltage or current
a trip has taken place. Display range 0.0-
999.9.
On serial communication, the fault code is
returned as a whole number. Time and
value are returned as floating decimal
values.
8 log values are given (0-7). The lowest log
number (0) contains the newest/last stored
data value, and the highest log number (7)
contains the oldest data value.
An alarm can only be represented once.
The fault log is reset after manual initializa-
tion.
Irrespective of which log set is being read,
the display will automatically shift to log
number 0 if a new trip occurs.
20 log values (0-19) are given. The lowest
number (0) contains the newest/last stored
data value, and the highest log number
(19) contains the oldest data value.
The data values are logged every 160 ms
for as long as the start signal is active.
The data log contains the last 20 log
values (approx. 3.2 s) before a stop signal
is given (start not active), or a trip.
However, it is possible to scroll through the
log values.
The data log is reset during start-up (on
mains connection).
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