Danfoss VLT AQUA Drive FC 202 Programming Manual page 29

Parameter Description
0-04 Operating State at Power-up
Option: Function:
Select the operating mode upon reconnection of
the frequency converter to mains voltage after
power down when operating in Hand (local)
mode.
[0] Resume 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.
[1] Forced Uses [1] Forced stop, ref=old to stop the frequency
stop, converter but at the same time retain in memory
ref=old the local speed reference before power down.
After mains voltage is reconnected and after
receiving a start command (pressing [Hand On] or
Hand Start command via a digital input) the
frequency converter restarts and operates at the
retained speed reference.
0-05 Local Mode Unit
Option: Function:
Defines if the local reference unit should be
displayed in terms of the motor shaft speed
(in RPM/Hz) or as percent.
[0] As Motor
Speed Unit
[1] %
MG20O702
Programming Guide
3.2.2 0-1* Set-up Operations
Define and control the individual parameter set-ups.
The frequency converter has 4 parameter set-ups that can
be programmed independently of each other. This makes
the frequency converter very flexible and able to meet the
requirements of many different AQUA system control
schemes often saving the cost of external control
equipment. For example these can be used to programme
the frequency converter to operate according to one
control scheme in one set-up (e.g. daytime operation) and
another control scheme in another set-up (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
set-up depending on which model within that range the
frequency converter is installed on.
The active set-up (i.e. the set-up in which the frequency
converter is currently operating) can be selected in
parameter 0-10 Active Set-up 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 set-ups whilst
running, ensure parameter 0-12 This Set-up Linked to is
programmed as required. For the majority of water/
wastewater applications it is not necessary to program
parameter 0-12 This Set-up Linked to even if change of set
up is required when running, but for very complex
applications, using the full flexibility of the multiple set-
ups, it may be required. Using parameter 0-11 Programming
Set-up it is possible to edit parameters within any of the
set-ups whilst continuing the frequency converter
operation in its active set-up which can be a different set-
up to that being edited. Using parameter 0-51 Set-up Copy
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.
Danfoss A/S © Rev. 2014-01-21 All rights reserved.
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