Operating instructions

15-13 Logging Mode
Option: Function:
[0] * Log always Select Log always [0] for continuous logging.
[1] Log once on
trigger
Select Log once on trigger [1] to conditionally
start and stop logging using
par. 15-12 Trigger Event and
par. 15-14 Samples Before Trigger.
15-14 Samples Before Trigger
Range: Function:
50 * [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 Trigger Event and
par. 15-13 Logging Mode.
3.15.3 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 * [0 - 255 ] View the event type of the logged events.
15-21 Historic Log: Value
Array [50]
Range: Function:
0 * [0 -
2147483647 ]
View the value of the logged event. Interpret
the event values according to this table:
Digtal input Decimal value. See
par. 16-60 Digital Input for
description after convert-
ing to binary value.
Digital output
(not
monitored in
this SW
release)
Decimal value. See
par. 16-66 Digital Output
[bin] for description after
converting to binary value.
Warning word Decimal value. See
par. 16-92 Warning Word
for description.
Alarm word Decimal value. See
par. 16-90 Alarm Word for
description.
Status word Decimal value. See
par. 16-03 Status Word for
description after convert-
ing to binary value.
Control word Decimal value. See
par. 16-00 Control Word for
description.
Extended
status word
Decimal value. See
par. 16-94 Ext. Status Word
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 frequency converter start. The
max. value corresponds to approx. 24
days which means that the count will
restart at zero after this time period.
15-23 Historic Log: Date and Time
Range: Function:
Application
dependent
*
[Application
dependant]
Array parameter; Date & Time
0 - 49: This parameter shows
at which time the logged
event occurred.
Parameter Description
VLT
®
HVAC Drive Programming Guide
110 MG.11.CA.02 - VLT
®
is a registered Danfoss trademark
3
3