Danfoss VLT FC 100 Series Programming Manual page 30

Parameter Description
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 Uses saved reference [1] to stop the adjustable
stop, frequency drive but at the same time retain in
ref=old 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.
3.2.2 0-1* Set-up Operations
Define and control the individual parameter set-ups.
The adjustable frequency drive has four parameter set-ups
that can be programmed independently of each other. This
makes the adjustable frequency drive 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 adjustable frequency drive 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 adjustable frequency drives to the
same parameters on different equipment models within a
range, and then during production/commissioning, only
need a specific set-up selection depending on which
model the adjustable frequency drive is installed on within
that range.
The active set-up (i.e., the set-up in which the adjustable
frequency drive is currently operating) can be selected in
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
adjustable frequency drive running or stopped, via digital
input or serial communication commands (e.g., for night
set back). If it is necessary to change set-ups while
running, ensure 0-12 This Set-up Linked to is programmed
as required. For the majority of VLT
applications, it will not be necessary to program 0-12 This
Set-up Linked to even if a set-up must be changed while
®
VLT HVAC Drive Programming Guide
®
®
HVAC Drive
MG11CD22 - VLT ® is a registered Danfoss trademark
running. For very complex applications which use the full
flexibility of the multiple set-ups, it may be required. Using
0-11 Programming Set-up, it is possible to edit parameters
in any of the set-ups during adjustable frequency drive
operation in its active set-up; this set-up can be different
than the one being edited. Using 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.
0-10 Active Set-up
Option: Function:
Select the set-up in which the adjustable
frequency drive is to operate.
Use 0-51 Set-up Copy to copy a set-up to one
or all other set-ups. To avoid conflicting
settings of the same parameter within two
different set-ups, link the set-ups together
using 0-12 This Set-up Linked to. Stop the
adjustable frequency drive before switching
between set-ups, where parameters marked
'not changeable during operation' have
different values.
Parameters that are 'not changeable during
operation' are marked FALSE in the parameter
lists in the section Parameter Lists.
[0] Factory Cannot be changed. It contains the Danfoss
setup data set, and can be used as a data source
when returning the other set-ups to a known
state.
[1] Set-up 1 Set-up 1 [1] to Set-up 4 [4] are the four
*
separate parameter set-ups within which all
parameters can be programmed.
[2] Set-up 2
[3] Set-up 3
[4] Set-up 4
[9] Multi Is used for remote selection of set-ups using
setup digital inputs and the serial communication
port. This set-up uses the settings from
0-12 This Set-up Linked to.
3 3
3-3