Danfoss VLT Refrigeration Drive FC 103 Programming Manual page 27

Parameter Description
0-02 Motor Speed Unit
Option: Function:
NOTICE
This parameter cannot be adjusted while the
motor is running.
The information shown in the display depends on
settings in parameter 0-02 Motor Speed Unit and
parameter 0-03 Regional Settings. The default settings
of parameter 0-02 Motor Speed Unit and
parameter 0-03 Regional Settings depend on to which
region of the world the frequency converter is
supplied.
NOTICE
Changing the motor speed unit resets certain
parameters to their initial value. Select the
motor speed unit before modifying other
parameters.
[0] RPM Select to show motor speed variables and parameters
using motor speed (RPM).
[1] Hz Select to show motor speed variables and parameters
*
using output frequency (Hz).
0-03 Regional Settings
Option: Function:
NOTICE
This parameter cannot be adjusted while
the motor is running.
The display output depends on the settings in
parameter 0-02 Motor Speed Unit and
parameter 0-03 Regional Settings. The default
settings of parameter 0-02 Motor Speed Unit and
parameter 0-03 Regional Settings depend on which
region of the world the frequency converter is
supplied to. Reprogram the settings as required.
The settings not used are made invisible.
Sets parameter 1-20 Motor Power [kW] units to
[0] Interna-
tional [kW] and the default value of
parameter 1-23 Motor Frequency [50 Hz].
[1] North Sets parameter 1-21 Motor Power [HP] units to [hp]
America and the default value of parameter 1-23 Motor
Frequency to 60 Hz.
0-04 Operating State at Power-up
Option: Function:
Select the operating mode after reconnection of
the frequency converter to mains voltage after
power-down when operating in hand-on (local)
mode.
MG16H202
Programming Guide
0-04 Operating State at Power-up
Option:
[0] Resume
*
[1] Forced
stop,
ref=old
0-05 Local Mode Unit
Option:
[0] As Motor
*
Speed Unit
[1] %
3.2.1 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 refrigeration 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 1 control
scheme in 1 set-up (for example daytime operation) and
another control scheme in another set-up (for example
night setback). 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 (that is the set-up in which the frequency
converter is currently operating) can be selected in
parameter 0-10 Active Set-up and is shown in the LCP. Use
[9] Multi set-up to switch between set-ups with the
frequency converter running or stopped, via digital input
or serial communication commands (for example for night
setback). If it is necessary to change setups while running,
ensure that parameter 0-12 This Set-up Linked to is
programmed as required. For most refrigeration
applications it is not necessary to program
parameter 0-12 This Set-up Linked to even if change of set-
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Function:
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 local start via a digital
input as before the frequency converter was
powered down.
Stops the frequency converter, but at the same
time retains the local speed reference before
power-down in the memory. After mains
voltage is reconnected and after receiving a
start command (pressing [Hand On] or local
start command via a digital input), the
frequency converter restarts and operates at the
retained speed reference.
Function:
Defines if the local reference unit is shown
in terms of the motor shaft speed (in
RPM/Hz) or as percent.
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