Energy Log Resolution; Period Start - Danfoss VLT Programming Manual

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VLT HVAC Drive Programming Guide

23-50 Energy Log Resolution

Option:
[0] Hour of Day
[1] Day of Week
[2] Day of Month
[5] * Last 24 Hours
[6] Last 7 Days
[7] Last 5 Weeks
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 stopped until date/time is
readjusted in par. 0-70
properly, e.g. after a power down.

23-51 Period Start

Range:
Application [Application dependant]
dependent*
NB!
When mounting an Analog I/O MCB 109 option card, a battery back up of the date and time is included.
Function:
Select the desired type of period for logging of consumption. 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
Period Start
(par. 23-51 ) and the numbers of hours/days as programmed for (par. 23-50
Log Resolution
).
The logging will start on the date programmed in par. 23-51
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 par. 23-51
will refer to Operating Hours (time where frequency converter is powered up).
Date and Time Clock Fault
. In par. 0-79
Function:
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
par. 0-72 Time Format .
MG.11.C9.02 - VLT ® is a registered Danfoss trademark
Period Start
Period Start
it is possible to program for a Warning in case clock not has been set
Date Format
3 Parameter Description
Energy
, and continue until one
. In all cases the period split
and time format on setting in
3
225