NB!
The frequency converter has no back up of the
clock function and the set date/time will reset to
default (2000-01-01 00:00) after a power down
unless a Real Time Clock module with back up is
installed. Consequently the logging will be stop-
ped until date/time is readjusted in par. 0-70,
Set
Date and Time
. In par. 0-79,
Clock Fault
, it is pos-
sible to program for a Warning in case clock not
has been set properly, e.g. after a power down.
Hour of Day [0] , Day of Week [1] or Day of Month [2]. The
counters contain the logging data from the programmed date/
time for start (par. 23-51,
Period Start
) and the numbers of
hours/days as programmed for (par. 23-50,
Energy Log Reso-
lution
). The logging will start on the date programmed in par.
23-51,
Period Start
, and continue until one day/week/month has
gone.
Last 24 Hours [5], Last 7 Days [6] or Last 5 Weeks [7]. The
counters contain data for one day, one week or five weeks back
in time and up to the actual time.
The logging will start at the date programmed in
Period Start
,
par. 23-51.
In all cases the period split will refer to Operating Hours (time
where frequency converter is powered up).
23-51 Period Start
Range:
Function:
2000-01
-01
00:00
*
[2000-01-01 00:00 -
2099-12-31 23:59 ]
Set the date and time at which the Energy Log starts update of
the counters. First data will be stored in counter [00] and start
at the time/date programmed in this parameter.
Date format will depend on setting in par. 0-71,
Date Format
,
and time format on setting in par. 0-72,
Time Format
.
23-52 Period Stop
Range:
Function:
2000-01
-01
00:00
*
[2000-01-01 00:00 -
2099-12-31 23:59]
Set the date and time at which the Energy Log must stop up-
dating the counters.
If the period defined by par. 23-51 and 23-52 is longer than 24
hours/7 days/31 days (depending on selection in par. 23-50),
the logging will stop when all buffers are used.
23-53 Energy Log
Range:
Function:
[0]
*
0-4294967295
Array with a number of elements equal to the number of coun-
ters ([00]-[xx] below parameter number in display). Press OK
2. Parameter Description
VLT
®
AQUA Drive Programming Guide
220
MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
2