Danfoss VLT Programming Guide

The LCP indicates (with a wrench-icon and an “M”) when it is time for a Preventive Maintenance Action, and can be programmed to be indicated on a
digital output in parameter group 5-3*. The Preventive Maintenance Status may be read in par. 16-96
Maintenance Word . A Preventive Maintenance
indication can be reset from a digital input, the FC bus or manually from the LCP through par. 23-15
Reset Maintenance Word .
A Maintenance Log with the latest 10 loggings can be read from parameter group 18-0* and via the Alarm log button on the LCP after selecting Maintenance
Log.
NB!
The Preventive Maintenance Events are defined in a 20 element array. Hence each Preventive Maintenance Event must use the same
array element index in par. 23-10
Maintenance Item to par. 23-14 Maintenance Date and Time .
23-10 Maintenance Item
Option: Function:
Array with 20 elements displayed below parameter number in the display. Press [OK] and step
between elements by means of and buttons on the LCP.
Select the item to be associated with the Preventive Maintenance Event.
[1] * Motor bearings
[2] Fan bearings
[3] Pump bearings
[4] Valve
[5] Pressure transmitter
[6] Flow transmitter
[7] Temperature transm.
[8] Pump seals
[9] Fan belt
VLT
®
HVAC Drive Programming Guide 3 Parameter Description
MG.11.C9.02 - VLT
®
is a registered Danfoss trademark 221
3

Danfoss VLT Specifications

General

Frequency	50/60 Hz
Enclosure	IP20, IP21, IP55, IP66
Series	VLT
Control Technique	Flux Vector Control
Output Voltage	0-Vinput
Control Method	Fieldbus
Communication Interface	PROFIBUS, CANopen
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Cooling Method	Liquid Cooled
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% non-condensing
Altitude	Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating
Operating Temperature	-10°C to +50°C (14°F to 122°F)