Danfoss VLT FC 100 Series Programming Manual page 25

®
VLT HVAC Drive Programming Guide
0-03 Regional Settings
Option:
*
International
[0]
[1] North America
The setting not used is made invisible.
0-04 Operating State at Power-up (Hand)
Option:
*
Resume
[0]
[1] Forced stop, ref=old
0-05 Local Mode Unit
Option:
* As Motor Speed Unit
[0]
[1] %
3.2.3. 0-1* Set-up Operations
Define and control the individual parameter set-ups.
The frequency converter has four parameter setups that can be programmed independently of each other. This makes the frequency converter very
flexible and able to meet the requirements of many different VLT HVAC Drive system control schemes often saving the cost of external control equipment.
For example these can be used to program the frequency converter to operate according to one control scheme in one setup (e.g. daytime operation)
and another control scheme in another setup (e.g. night set back). Alternatively they can be used by an AHU or packaged unit OEM to identically program
all their factory fitted frequency converters for different equipment models within a range to have the same parameters and then during production/
commissioning simply select a specific setup depending on which model within that range the frequency converter is installed on.
The active setup (i.e. the setup in which the frequency converter is currently operating) can be selected in parameter 0-10 and is displayed in the LCP.
Using Multi set-up it is possible to switch between set-ups with the frequency converter running or stopped, via digital input or serial communication
commands (e.g. for night set back). If it is necessary to change setups whilst running, ensure parameter 0-12 is programmed as required. For the majority
of VLT HVAC Drive applications it will not be necessary to program parameter 0-12 even if change of set up whilst running is required, but for very
complex applications, using the full flexibility of the multiple setups, it may be required. Using parameter 0-11 it is possible to edit parameters within any
of the setups whilst continuing the frequency converter operation in its Active Setup which can be a different setup to that being edited. Using parameter
0-51 it is possible to copy parameter settings between the set-ups to enable quicker commissioning if similar parameter settings are required in different
set-ups.
0-10 Active Set-up
Option:
Function:
This parameter cannot be adjusted while the motor is running.
The display showing depends on settings in parameter 0-02 and 0-03. The default setting of parameters 0-02
and 0-03 depends on which region of the world the frequency converter is supplied to but can be re-programmed
as required.
Motor Power
Sets par. 1-20 units to [kW] and the default value of par. 1-23
Motor Power
Sets par. 1-21 units to HP and the default value of par. 1-23
Function:
Select the operating mode upon reconnection of the frequency converter to mains voltage after power down
when operating in Hand (local)mode.
Resumes operation of the frequency converter 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 frequency
converter was powered down.
Uses saved reference [1] to stop the frequency converter but at the same time retain in memory the local speed
reference prior to power down. After mains voltage is reconnected and after receiving a start command (using
the LCP [Hand On] button or Hand Start command via a digital input) the frequency converter restarts and
operates at the retained speed reference.
Function:
Defines if the local reference unit should be displayed in terms of the motor shaft speed (in RPM/Hz) or as
percent.
Function:
Select the set-up in which the frequency converter is to operate.
MG.11.C5.02 - VLT ® is a registered Danfoss trademark
3. Parameter Description
Motor Frequency
[50 Hz].
Motor Frequency
to 60 Hz.
3
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