Danfoss FC 300 Programming Manual page 185

FC 300 Programming Guide
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15-13 Logging Mode
Option:
*
[0]
[1]
15-14 Samples Before Trigger
Range:
*
50
2.16.4. Historic Log,15-2*
View up to 50 logged data items via the array parameters in this parameter group. For all pa-
rameters in the group, [0] is the most recent data and [49] the oldest data. Data is logged every
time an
a change in one of the following areas:
1.
2.
3.
4.
5.
6.
7.
Events
depends on how often
but if an alarm occurs, the log is saved and the values can be viewed on the display. This feature
is useful, for example when carrying out service following a trip. View the historic log contained
in this parameter via the serial communication port or via the display.
Digital input DI27
Digital input DI29 (FC
302 only)
Digital input DI32
Digital input DI33
Comparator 4
Comparator 5
Logic rule 4
Logic rule 5 Select the trigger event. When the trigger event occurs, a win-
dow is applied to freeze the log. The log will then retain a
specified percentage of samples before the occurrence of the
trigger event (par. 15-14).
Function:
Log always
Log once on trigger Select
Select
logging using par. 15-12 and par. 15-14.
Function:
[0 - 100] Enter the percentage of all samples prior to a trigger event
which are to be retained in the log. See also par. 15-12 and par.
15-13.
event
occurs (not to be confused with SLC events).
Digital input
Digital outputs (not monitored in this SW release)
Warning word
Alarm word
Status word
Control word
Extended status word
are logged with value, and time stamp in msec. The time interval between two events
events
occur (maximum once every scan time). Data logging is continuous
®
MG.33.M2.02 - VLT is a registered Danfoss trademark
Log always [0] for continuous logging.
Log once on trigger
[1] to conditionally start and stop
Events
in this context are defined as
2. How to Programme
185
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