3.16.3 15-2* Historic Log
View up to 50 logged data items via the array parameters in
this parameter group. For all parameters in the group, [0] is
the most recent data and [49] the oldest data. Data is logged
every time an
event
occurs (not to be confused with SLC
events).
Events
in this context are defined as a change in one
of the following areas:
1.
Digital input
2.
Digital outputs (not monitored in this SW release)
3.
Warning word
4.
Alarm word
5.
Status word
6.
Control word
7.
Extended status word
Events
are logged with value, and time stamp in msec. The
time interval between two events depends on how often
events
occur (maximum once every scan time). Data logging
is continuous 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.
15-20 Historic Log: Event
Array [50]
Range:
Function:
0 N/A
*
[0 - 255 N/A] View the event type of the logged events.
15-21 Historic Log: Value
Array [50]
Range:
Function:
0 N/
A
*
[0 -
2147483647 N/
A]
View the value of the logged event.
Interpret the event values according to
this table:
15-21 Historic Log: Value
Array [50]
Range:
Function:
Digital input
Decimal value. See
for
description after
converting to binary
value.
Digital output
(not
monitored in
this SW
release)
Decimal value. See
for description after
converting to binary
value.
Warning
word
Decimal value. See
16-92 Warning Word
for
description.
Alarm word
Decimal value. See
16-90 Alarm Word
for
description.
Status word
Decimal value. See
for
description after
converting to binary
value.
Control word Decimal value. See
for
description.
Extended
status word
Decimal value. See
for
description.
15-22 Historic Log: Time
Array [50]
Range:
Function:
0 ms
*
[0 - 2147483647
ms]
View the time at which the logged
event occurred. Time is measured in ms
since adjustable frequency drive start.
The max. value corresponds to approx.
24 days which means that the count
will restart at zero after this time
period.
Parameter Descriptions
FC 300 Programming Guide
MG.33.MA.22 - VLT
®
is a registered Danfoss trademark
3-129
3
3
