Danfoss VLT HVAC Series, Programming Manual, Page: 186 / 338

3.17 Main Menu - Data Readouts 2 - Group 18
3.17.1 18-0* Maintenance Log
This group contains the last 10 preventive maintenance logs. Maintenance Log 0 is the latest log and Maintenance Log 9 the oldest.
By selecting one of the logs and pressing OK, the maintenance item, action and time of the occurrence can be found in par.18-00
Maintenance Log:
Item
– par.18-03
Maintenance Log: Date and Time
.
The Alarm log button on the LCP allows access to both the Alarm log and Maintenance log.
18-00 Maintenance Log: Item
Array [10]
Range: Function:
0 N/A* [0 - 255 N/A] Locate the meaning of the maintenance item in the description of par.23-10 Maintenance Item .
18-01 Maintenance Log: Action
Array [10]
Range: Function:
0 N/A* [0 - 255 N/A] Locate the meaning of the maintenance item in the description of par.23-11 Maintenance Action
18-02 Maintenance Log: Time
Array [10]
Range: Function:
0 s* [0 - 2147483647 s] Shows when the logged event occurred. Time is measured in seconds since last power-up.
18-03 Maintenance Log: Date and Time
Array [10]
Range: Function:
0 N/A* [0 - 0 N/A] Shows when the logged event occurred.
NOTE!
This requires that the date and time is programmed in par.0-70 Set Date and
Time .
The 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 adjustable frequency drive 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 clock has not been set properly, e.g.,
after a power-down. Setting the clock incorrectly will affect the time stamps for
the maintenance events.
3 Parameter Description VLT ® HVAC Drive Programming Guide
3-162
MG.11.C6.22 - VLT ® is a registered Danfoss trademark
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