Danfoss VLT FC 100 Series Programming Manual page 126

Parameter Description
15-13 Logging Mode
Option: Function:
[0] Log always Select Log always [0] for continuous
*
logging.
[1] Log once on Select Log once on trigger [1] to
trigger conditionally start and stop logging using
15-12 Trigger Event and 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 15-12 Trigger Event and
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.
*
®
VLT HVAC Drive Programming Guide
15-21 Historic Log: Value
Array [50]
Range:
0
15-22 Historic Log: Time
Array [50]
Range:
0 ms
15-23 Historic Log: Date and Time
Range:
Size related
MG11CD22 - VLT ® is a registered Danfoss trademark
Function:
[0 - View the value of the logged event.
*
2147483647 ] Interpret the event values according to
this table:
Digital input
Digital output
(not
monitored in
this SW
release)
Warning word Decimal value. See
Alarm word
Status word
Control word
Extended
status word
Table 3.19
Function:
[0 - 2147483647 View the time at which the logged
*
ms] 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.
[ 0 - 0 ]
*
Decimal value. See
16-60 Digital Input for
description after
converting to binary
value.
Decimal value. See
16-66 Digital Output [bin]
for description after
converting to binary
value.
16-92 Warning Word for
description.
Decimal value. See
16-90 Alarm Word for
description.
Decimal value. See
16-03 Status Word for
description after
converting to binary
value.
Decimal value. See
16-00 Control Word for
description.
Decimal value. See
16-94 Ext. Status Word for
description.
Function:
3-99
3 3