Example
A Preventive Maintenance Event is set up Monday at 8:00. Par.
23-12 Maintenance Time Base is
Operating hours
[2] and par
23-13 Maintenance Time Interval is 7 x 24 hours=168 hours.
Next Maintenance Event will be indicated the following Monday
at 8:00. If this Maintenance Event is not reset until Tuesday at
9:00, the next occurrence will be the following Tuesday at 9:00.
23-14 Maintenance Date and Time
Range:
Function:
2000-01
-01
00:00
*
[2000-01-01 00:00]
Set the date and time for next maintenance occurrence if the
Preventive Maintenance Event is based on date/time. Date for-
mat depends on the setting in par. 0-71
Date format
, while the
time format depends on the setting in par. 0-72
Time format
.
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. In par. 0-79,
Clock Fault
, it is possible to
program for a Warning in case the clock has not
been set properly, e.g. after a power down.
The time set must be at least one hour from the
actual time!
23-15 Reset Maintenance Word
Option:
Function:
[0]
*
Do not reset
[1]
Do reset
Set this parameter to
Do reset
[1] to reset the Maintenance
Word in par. 16-96
Prev. Maintenance Word
and reset the mes-
sage displayed in the LCP. This parameter will change back to
Do not reset
[0] when pressing OK.
2.20.3. Energy Log, 23-5*
The frequency converter is continuously accumulating the consumption of the motor controlled,
based on the actual power yielded by the frequency converter.
These data can be used for an Energy Log function allowing the user to compare and structure
the information about the energy consumption related to time.
There are basically two functions:
-
Data related to a pre-programmed period, defined by a set date and time for start
-
Data related to a predefined period back in time e.g. last seven days within the pre-
programmed period
For each of the above two functions, the data are stored in a number of counters allowing for
selecting time frame and a split on hours, days or weeks.
The period/split (resolution) can be set in par. 23-50,
Energy Log Log Resolution
.
2. Parameter Description
VLT
®
AQUA Drive Programming Guide
218
MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
2