Danfoss VLT HVAC Series User Manual

0-02 Motor Speed Unit
Option: Function:
This parameter cannot be adjusted while the motor is running.
The display showing depends on settings in par.0-02
Motor Speed Unit and par.0-03 Regional Set-
tings
. The default setting of par.0-02 Motor Speed Unit and par.0-03 Regional Settings depends on
which region of the world the adjustable frequency drive is supplied to, but can be re-programmed
as required.
NOTE!
Changing the
Motor Speed Unit will reset certain parameters to their initial value.
It is recommended to select the motor speed unit first before modifying other
parameters.
[0] RPM Selects display of motor speed variables and parameters (i.e. references, feedbacks and limits) in
terms of motor speed (RPM).
[1] * Hz Selects display of motor speed variables and parameters (i.e., references, feedbacks and limits) in
terms of output frequency to the motor (Hz).
0-03 Regional Settings
Option: Function:
This parameter cannot be adjusted while the motor is running.
The display showing depends on settings in par.0-02
Motor Speed Unit and par.0-03 Regional Set-
tings
. The default setting of par.0-02 Motor Speed Unit and par.0-03 Regional Settings depends on
which region of the world the adjustable frequency drive is supplied to but can be re-programmed
as required.
[0] * International Sets par.1-20
Motor Power [kW] units to [kW] and the default value of par.1-23 Motor Frequency
[50 Hz].
[1] North America Sets par.1-21
Motor Power [HP] units to HP and the default value of par.1-23 Motor Frequency to
60 Hz.
The setting not used is made invisible.
0-04 Operating State at Power-up
Option: Function:
Select the operating mode upon reconnection of the adjustable frequency drive to AC line voltage
after power-down when operating in hand (local) mode.
[0] * Resume Resumes operation of the adjustable frequency drive maintaining the same local reference and the
same start/stop condition (applied by [Hand On]/[Off] on the LCP or Hand Start via a digital input
as before the adjustable frequency drive was powered down.
[1] Forced stop, ref=old Uses saved reference [1] to stop the adjustable frequency drive but at the same time retain in
memory the local speed reference prior to power-down. After AC line voltage is reconnected and
after receiving a start command (using the LCP [Hand On] button or Hand Start command via a
digital input), the adjustable frequency drive restarts and operates at the retained speed reference.
VLT
®
HVAC Drive Programming Guide 3 Parameter Description
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark 3-3
3

Danfoss VLT HVAC Series Specifications

General

Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication Interfaces	Profibus, Ethernet
Cooling Method	Forced convection
Ambient Temperature	-10°C to +40°C
Enclosure Rating	IP20, IP21, IP55
Output Voltage	0 - 100% of supply voltage