Operating instructions

23-14 Maintenance Date and Time
Range: Function:
Applica-
tion
depend-
ent
*
[Applica-
tion
depend-
ant]
Set the date and time for next mainte-
nance occurrence if the Preventive
Maintenance Event is based on date/time.
Date format depends on the setting in
par. 0-71 Date Format while the time
format depends on the setting in
par. 0-72 Time Format.
NOTE
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. 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!
NOTE
When mounting an Analog I/O
MCB 109 option card, a battery
back up of the date and time is
included.
23-15 Reset Maintenance Word
Option: Function:
Set this parameter to Do reset [1] to reset the
Maintenance Word in par. 16-96 Maintenance
Word and reset the message displayed in the
LCP. This parameter will change back to Do not
reset [0] when pressing OK.
[0]
* Do not
reset
[1] Do reset
NOTE
When messages are reset - Maintenance Item, Action
and Maintenance Date/Time are not cancelled.
Par. 23-12 Maintenance Time Base is set to Disabled [0].
23-16 Maintenance Text
Range: Function:
0 * [0 - 0 ]
3.21.3 23-5* Energy Log
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 Resolution.
The data are based on the value registered by the kWh
counter in the frequency converter. This counter value can be
read in par. 15-02 kWh Counter containing the accumulated
value since the first power up or latest reset of the counter
(par. 15-06 Reset kWh Counter).
All data for the Energy Log are stored in counters which can
be read from par. 23-53 Energy Log.
Counter 00 will always contain the oldest data. A counter will
cover a period from XX:00 to XX:59 if hours or 00:00 to 23:59 if
days.
If logging either the last hours or last days, the counters will
shift contents at XX:00 every hour or at 00:00 every day.
Counter with highest index will always be subject to update
(containing data for the actual hour since XX:00 or the actual
day since 00:00).
Parameter Description
VLT
®
HVAC Drive Programming Guide
MG.11.CA.02 - VLT
®
is a registered Danfoss trademark 155
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