The nameplate sticker is located on the top of each
frequency converter and shows the ratings, serial number,
warnings catalog number, and other relevant data for each
unit. See Table 1.1 for details, how to read the type code
string.
Product group1-3Frequency converters
Series and product type4-6Micro Drive
Power size7-100.18–22 kW
Mains voltage11-12S2: Single phase 200–240 V AC
T2: 3-phase, 200–240 V AC
T4: 3-phase, 380–480 V AC
Enclosure13-15IP20/Chassis
RFI filter16-17HX: No RFI filter
H1: RFI filter class A1/B
H3:RFI filter A1/B (reduced cable length1))
Brake18B: Brake chopper included (from 1.5 kW and up)
X: No brake chopper included
Display19X: No Local Control Panel
N: Numerical Local Control Panel (LCP)
P: Numerical Local Control Panel (LCP)) with potentiometer
Coating PCB20C: Coated PCB
X. No coated PCB
Mains option21X: No mains option
Adaptation A22X: No adaptation
Adaptation B23X: No adaptation
Software release24-27SXXX: Latest release - standard software
a
AWGAmerican wire gauge
Auto Tune Automatic motor tuning°C
ICurrentAAmp
I
LIM
IT mainsMains supply with star point
JouleEnergyJ=N∙mft-lb, Btu
°F
FCFrequency converter
fFrequencyHzHz
kHzKilohertzkHzkHz
LCPLocal control panel
mAMilliampere
msMillisecond
minMinute
MCTMotion Control Tool
M-TYPEMotor type dependent
NmNewton metresin-lbs
I
M,N
f
M,N
P
M,N
U
M,N
PELVProtective extra low voltage
WattPower
PascalPressure
I
INV
RPMRevolutions per minute
sSecond
SRSize related
TTemperatureCF
tTimess,hr
T
LIM
UVoltageVV
Terms SI units I-P units
Acceleration
Celsius
Current limit
in transformer floating to
ground
Fahrenheit
Nominal motor current
Nominal motor frequency
Nominal motor power
Nominal motor voltage
Rated inverter output current
Torque limit
2
m/s
W
Pa =
N/m²
2
ft/s
Btu/hr,
hp
psi, psf,
ft of
water
Software Version
Programming Guide
VLT® Micro Drive
FC 51 Series
This Programming Guide can be used for all VLT
Micro Drive FC 51 frequency converters with
software version 3.1X.
The software version number can be read in
15-43 Software Version.
Table 1.3 Software Version and Approvals
1.4 Disposal Instruction
Equipment containing electrical components
must not be disposed of together with domestic
waste.
It must be separately collected with electrical
and electronic waste according to local and
currently valid legislation.
Indicates a potentially hazardous situation that could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that could
result in minor or moderate injury. It can also be used to
alert against unsafe practices.
NOTICE
Indicates important information, including situations that
can result in damage to equipment or property.
2.2 Qualified Personnel
WARNING
UNINTENDED START
When the frequency converter is connected to AC mains,
DC supply, or load sharing, the motor may start at any
time. Unintended start during programming, service, or
repair work can result in death, serious injury, or
property damage. The motor can start via an external
switch, a serial bus command, an input reference signal
from the LCP, or after a cleared fault condition.
To prevent unintended motor start:
Disconnect the frequency converter from the
•
mains.
Press [Off/Reset] on the LCP before
•
programming parameters.
Fully wire and assembly the frequency
•
converter, motor, and any driven equipment
before connecting the frequency converter to
AC mains, DC supply, or load sharing.
Correct and reliable transport, storage, installation,
operation, and maintenance are required for the troublefree and safe operation of the frequency converter. Only
qualified personnel are allowed to install or operate this
equipment.
Qualified personnel are defined as trained staff, who are
authorised to install, commission, and maintain equipment,
systems, and circuits in accordance with pertinent laws and
regulations. Additionally, the qualified personnel must be
familiar with the instructions and safety measures
described in these operating instructions.
2.3
Safety
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to perform installation, start-up, and maintenance
by qualified personnel can result in death or serious
injury.
Installation, start-up, and maintenance must be
•
performed by qualified personnel only.
WARNING
DISCHARGE TIME
The frequency converter contains DC-link capacitors,
which can remain charged even when the frequency
converter is not powered. Failure to wait the specified
time after power has been removed before performing
service or repair work, could result in death or serious
injury.
1.Stop the motor.
2.Disconnect FC 51 from mains (and external DC
supply, if present).
3.Wait for 4 minutes (M1, M2 and M3) and 15 min
(M4 and M5) for discharge of the DC-link.
4.Disconnect DC bus terminals and brake
terminals (if present).
5.Remove motor cable.
WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly can result in death or
serious injury.
Contact with rotating shafts and electrical equipment
can result in death or serious injury.
Ensure that only trained and qualified
•
personnel perform installation, start up, and
maintenance.
Ensure that electrical work conforms to national
•
and local electrical codes.
Follow the procedures in this document.
•
CAUTION
INTERNAL FAILURE HAZARD
An internal failure in the frequency converter can result
in serious injury, when the frequency converter is not
properly closed.
Ensure that all safety covers are in place and
•
securely fastened before applying power.
22
NOTICE
HIGH ALTITUDES
For installation at altitudes above 2000 m, contact
Danfoss regarding PELV.
NOTICE
Use on Isolated Mains
For details about the use of the frequency converter on
isolated mains, refer to section RFI Switch in the design
guide.
Follow the recommendations regarding the installation
on IT-mains. Use relevant monitoring devices for ITmains to avoid damage.
Different information can be read from the display.
Set-up number shows the active set-up and the edit set-
up. If the same set-up acts as both active and edit set-up,
only that set-up number is shown (factory setting).
When active and edit set-up differ, both numbers are
shown in the display (Set-up 12). The number flashing,
indicates the edit set-up.
Illustration 3.3 Indicating Set-up
The small digits to the left are the selected parameter
number.
Illustration 3.4 Indicating Selected Parameter Number
Illustration 3.1 LCP 12 with Potentiometer
Illustration 3.2 LCP 11 without Potentiometer
The large digits in the middle of the display show the
value of the selected parameter.
Illustration 3.5 Indicating Value of Selected Parameter
The right side of the display shows the unit of the selected
parameter. This can be either Hz, A, V, kW, hp, %, s or
RPM.
Illustration 3.6 Indicating Unit of Selected Parameter
Motor direction is shown to the bottom left of the display
- indicated by a small arrow pointing either clockwise or
counterclockwise.
Illustration 3.7 Indicating Motor Direction
Press the [Menu] key to select one of the following menus
Status Menu
The Status Menu is either in Readout Mode or Hand on
Mode. In Readout Mode the value of the currently selected
readout parameter is shown in the display.
In Hand on Mode the local LCP reference is displayed.
Quick Menu
Displays Quick Menu parameters and their settings.
Parameters in the Quick Menu can be accessed and edited
from here. Most applications can be run by setting the
parameters in the Quick Menus.
Main Menu
Displays Main Menu parameters and their settings. All
parameters can be accessed and edited here.
LED (indicator lights)
Green LED: The frequency converter is on.
•
Yellow LED: Indicates a warning. See
•
chapter 6 Troubleshooting.
Flashing red LED: Indicates an alarm. See
•
chapter 6 Troubleshooting.
Navigation keys
[Back]: For moving to the previous step or layer in the
navigation structure.
[▲] [▼]: For maneuvering between parameter groups,
parameters and within parameters.
[OK]: For selecting a parameter and for accepting changes
to parameter settings.
Pressing [OK] for more than 1 s enters Adjust mode. In
Adjust mode, it is possible to make fast adjustment by
pressing [▲] [▼] combined with [OK].
Press [▲] [▼] to change value. Press [OK] to shift between
digits quickly.
To exit Adjust mode, press [OK] more than 1 s again with
changes saving or press [Back] without changes saving.
Operation keys
A yellow light above the operation keys indicates the
active key.[Hand On]: Starts the motor and enables control
of the frequency converter via the LCP.
[Off/Reset]: The motor stops except in alarm mode. In that
case the motor will be reset.
[Auto On]:
control terminals or serial communication.
[Potentiometer] (LCP 12): The potentiometer works in two
ways depending on the mode in which the frequency
converter is running.
In Auto Mode the potentiometer acts as an extra
programmable analog input.
In Hand on Mode the potentiometer controls local
reference.
The frequency converter is controlled either via
3.2 Status Menu
After power up, the Status Menu is active. Press [Menu] to
toggle between Status, Quick Menu and Main Menu.
[▲] and [▼] toggles between the choices in each menu.
The display indicates the status mode with a small arrow
above “Status”.
Illustration 3.8 Indicating Status Mode
3.3 Quick Menu
The Quick Menu gives easy access to the most frequently
used parameters.
1.To enter the Quick Menu, press [Menu] key until
indicator in display is placed above Quick Menu.
2.
Press [▲] [▼] to select either QM1 or QM2, then
press [OK].
3.
Press [▲] [▼] to browse through the parameters
in the Quick Menu.
4.Press [OK] to select a parameter.
5.
Press [▲] [▼] to change the value of a parameter
setting.
6.Press [OK] to accept the change.
7.
To exit, press either [Back] twice to enter Status,
or press [Menu] once to enter Main Menu.
In order to meet the needs for different default
settings in different parts of the world, 0-03Regional Settings, is implemented in the
frequency converter. The selected setting
influences the default setting of the motor
nominal frequency.
[0 ] * Interna-
tional
[1]US
Sets default of 1-23 Motor Frequency, to 50 Hz,
shows 1-20 Motor Power in kW.
Sets default of 1-23 Motor Frequency, to 60 Hz,
shows 1-20 Motor Power in HP.
NOTICE
This parameter cannot be changed while
motor runs.
0-04 Operating State at Power-up (Hand Mode)
Option:Function:
This parameter controls whether or not the
frequency converter start running the motor
when powering up after a power down in
Hand mode.
NOTICE
If LCP with potentiometer is mounted,
reference is set according to actual
potentiometer value.
[0]ResumeFrequency converter starts in same Hand or
Off State as when powered off.
Local reference is stored and used after
power-up.
[1] * Forced
Stop,
Ref=Old
[2]Forced
Stop, Ref=0
Frequency converter powers up in Off State
meaning that motor is stopped after power
up.
Local reference is stored and used after
power-up.
Frequency converter powers up in Off State
meaning that motor is stopped after power
up.
Local reference is set to 0. Thus motor will not
start running before local reference has been
increased.
4.1.1 0-1* Set-up Handling
User-defined parameters and miscellaneous external inputs
(eg. bus, LCP, analog/digital inputs, feedback, etc.) controls
the functionality of the frequency converter.
A complete set of all parameters controlling the frequency
converter is called a set-up. The frequency converter
contains 2 set-ups, Set-up 1 and Set-up 2.
Furthermore, a fixed set of factory settings can be copied
into one or more set-ups.
Some of the advantages of having more than one set-up
in the frequency converter are
Run motor in one set-up (Active Set-up) while
•
updating parameters in another set-up (Edit Setup)
Connect various motors (one at a time) to
•
frequency converter. Motor data for various
motors can be placed in different set-ups.
Rapidly change settings of frequency converter
•
and/or motor while motor is running (eg. ramp
time or preset references) via bus or digital
inputs.
The Active Set-up can be set as Multi Set-up where the
active set-up is selected via input on a digital input
terminal and/or via the bus control word.
NOTICE
Factory Set-up cannot be used as active set-up.
0-10 Active Set-up
Option:Function:
Active Set-up controls the motor.
Shifts between set-ups can only happen when
the motor is coasted
•
OR
the set-ups between which the shift
•
happens are linked to each other (see
0-12 Linked Set-ups).
If changing between set-ups that are not linked,
the change will not happen before motor is
coasted.
NOTICE
The motor is only considered stopped
when it is coasted.
Select the active set-up via digital input and/or
bus, see 5-1* Digital Inputs choice [23].
0-11 Edit Set-up
44
Option:Function:
The Edit Set-up is for updating parameters in
the frequency converter from either LCP or
bus. It can be identical or different from the
Active Set-up.
All set-ups can be edited during operation,
independently of the active set-up.
[1 ] * Set-up 1
[2]Set-up 2
[9]Active
Set-up
Update parameters in Set-up 1.
Update parameters in Set-up 2.
Update parameters in set-up selected as Active
Set-up (see 0-10 Active Set-up).
0-12 Link Set-ups
Option:Function:
The link ensures synchronizing of the “not
changeable during operation” parameter values
enabling shift from one set-up to another during
operation.
If the set-ups are not linked, a change between
them is not possible while the motor is running.
Thus the set-up change does not occur until the
motor is coasted.
[0]Not
linked
[1 ]*LinkedCopy parameters “not changeable during
Leaves parameters unchanged in both set-ups
and cannot be changed while motor runs.
operation” parameter values into presently
selected Edit Set-up.
NOTICE
This parameter cannot be changed while
motor runs.
0-31 Custom Readout Min Scale
0-32 Custom Readout Max Scale
Range:Function:
100.0* [0.00–
9999.00]
It is possible to create a customized readout
related to the output frequency of the unit.
The value entered in 0-32 Custom ReadoutMax Scale will be shown at the frequency
programmed in 4-14 Motor Speed High Limit.
The readout can be shown in the LCP
display when in Status Mode or it can be
read in 16-09 Custom Readout
4.1.2 0-4* LCP
The frequency converter can operate in the following three
modes: Hand, Off and Auto.
Hand: The frequency converter is locally operated and does
not allow any remote control. By activating Hand a start
signal is given.
OFF: The frequency converter stops with a normal stop
ramp. When Off is chosen the frequency converter can
only be started by pressing either Hand or Auto on the
LCP.
Auto: In Auto-mode the frequency converter can be
remote controlled (bus/digital).
0-40 [Hand On] Key on LCP
Option:Function:
[0]Disabled[Hand On] key has no function.
[1 ] *Enabled[Hand On] key is functional.
0-41 [Off/Reset] Key on LCP
Option:Function:
[0]Disable Off/Reset [Off/Reset] key has no function.
[1 ] * Enable Off/ResetStop signal and reset of any faults.
[2]Enable Reset Only Reset only. Stop (Off) function is
disabled.
0-42 [Auto On] Key on LCP
Option:Function:
[0]Disabled[Auto On] key has no function.
[1 ] *Enabled[Auto On] key is functional.
Range:Function:
0.00 * [0.00–
9999.00 ]
It is possible to create a customized readout
related to the output frequency of the unit.
The value entered in 0-31 Custom ReadoutMin Scale will be shown at 0 Hz. The readout
can be shown in the LCP display when in
Status Mode or it can be read in 16-09
Custom Readout
4.1.3 0-5* Copy/Save
0-50 LCP Copy
Option:Function:
The detachable LCP of the frequency
converter can be used for storing
setups, and thus for transferring data
when moving parameter settings from
one frequency converter to another.
[0] * No copy
[1]All to LCPCopy all setups from the frequency
converter into the LCP.
[2]All from LCPCopy all setups from LCP to frequency
converter.
[3]Size independent
from LCP
Copy non motor size dependent data
from LCP to frequency converter.
0-51 Set-up Copy
Option:Function:
Use this function to copy a set-up content
into the Edit Set-up.
In order to be able to make a set-up copy
ensure that
the motor is coasted
•
0-10 Active Set-up, Active Set-up, is
•
set to either [1] Set-up 1 or [2] Set-up
2
NOTICE
The keyboard/parameter database are
blocked while Set-up Copy is running.
[0 ]*No CopyCopy function is inactive
0-61 Access to Main/Quick Menu w/o Password
Option:Function:
[0] * Full access
[1]LCP: Read Only
[2]LCP: No Access
Select [0] Full Access to disable the
password in 0-60 (Main) Menu Password.
Select [1] Read Only to block unauthorized
editing of Main/Quick menu parameter.
Select [2] No Access to block unauthorized
editing and viewing of Main/Quick menu
parameter.
44
[1]Copy from
Set-up 1
[2]Copy from
Set-up 2
[9]Copy from
Factory Setup
Copy from Set-up 1 to edit set-up chosen in
0-11 Edit Set-up.
Copy from Set-up 2 to edit set-up chosen in
0-11 Edit Set-up.
Copy from Factory Settings to edit set-up
chosen in 0-11 Edit set-up.
4.1.4 0-6* Password
0-60 (Main) Menu Password
Range:Function:
Use password for protection against unintended
change of sensitive parameters, eg. motor
parameters.
0 * [0-999] Enter the password for access to Main Menu via
the [Main Menu] key. Select the number that
should allow for changing other parameter values.
0 means there is no password.
NOTICE
A password has affect on the LCP - not on the bus
communication.
NOTICE
Pressing [Menu], [OK] and [▼] will unlock the password.
This will automatically enter the parameter editing
screen in Quick Menu or Main Menu.
Use this parameter for selecting the
application control principle to be used when
a Remote Reference is active.
NOTICE
44
Changing this parameter resets 3-00Reference Range, 3-02 Minimum
[0]Speed
Open
Loop
Reference and 3-03 Maximum Reference
to their default values.
NOTICE
This parameter cannot be adjusted
while motor runs.
[0 ] * Speed
Open
Loop
[3]ProcessEnables process closed loop control. See
For normal speed control (References).
parameter group 7-3* Process PI Control for
further information on PI-controller.
1-01 Motor Control Principle
[2]*As
configuration in
1-00
Configuration
Mode.
4.2.1 1-2* Motor Data
This parameter is only relevant when 1-00
Configuration Mode is set to [3] Process Closed
Loop. The parameter is used for determining the
reference or setpoint handling when changing
from Auto Mode to Hand Mode on the LCP.
In Hand Mode the drive always runs in Open
Loop configuration regardless of setting in 1-00Configuration Mode. Local potentiometer (if
present) or Arrow up/down determines output
frequency limited by Motor Speed High/Low
Limit (4-14 Motor Speed High Limit and 4-12Motor Speed Low Limit).
If 1-00 Configuration Mode is set to [1] Open Loop
function is as described above.
If 1-00 Configuration Mode is set to [3] ProcessClosed Loop changing from Auto mode to Hand
mode results in a setpoint change via local
potentiometer or Arrow up/down. The change is
limited by Reference Max/Min (3-02 MinimumReference and 3-03 Maximum Reference).
Option:Function:
[0]U/fIs used for parallel connected motors and/or special
motor applications. The U/f settings are set in 1-55U/f Characteristic -U and 1-56 U/f Characteristic -F.
NOTICE
When running U/f control slip- and load
Enter the correct motor nameplate data (power, voltage,
frequency, current and speed).
Run AMT, see 1-29 Automatic Motor Tuning (AMT).
Factory settings for advanced motor data, parameter group
1-3* Adv. Motor Data, are automatically calculated.
compensations are not included.
[1] * VVC+ Normal running mode, including slip- and load
compensations.
NOTICE
Parameters in parameter group 1-2* Motor Data cannot
be adjusted while motor runs.
1-03 Torque Characteristics
Option:Function:
With more torque characteristics it is
possible to run low energy consuming, as
well as high torque applications.
[0 ] * Constant
Torque
[2]Automatic
Energy
Optimisation
Motor shaft output provides constant
torque under variable speed control.
This function automatically optimizes
energy consumption in centrifugal pump
and fan applications. See 14-41 AEOMinimum Magnetisation.
1-20 Motor Power [kW]/[HP] (P
Option:Function:
Enter motor power from nameplate
data.
Two sizes down, one size up from
nominal VLT rating.
[1] 0.09 kW/0.12 HP
[2] 0.12 kW/0.16 HP
[3] 0.18kW/0.25 HP
[4] 0.25 kW/0.33 HP
[5] 0.37kW/0.50 HP
[6] 0.55 kW/0.75 HP
[7] 0.75 kW/1.00 HP
[8] 1.10 kW/1.50 HP
[9] 1.50 kW/2.00 HP
[10] 2.20 kW/3.00 HP
[11] 3.00 kW/4.00 HP
[12] 3.70 kW/5.00 HP
[13] 4.00 kW/5.40 HP
[14] 5.50 kW/7.50 HP
[15] 7.50 kW/10.0 HP
[16] 11.00 kW/15.00 HP
[17] 15.00 kW/20.00 HP
[18] 18.50 kW/25.00 HP
[19] 22.00 kW/29.50 HP
[20] 30.00 kW/40.00 HP
NOTICE
Changing this parameter affects parameters 1-22 Motor
Voltage to 1-25 Motor Frequency, 1-30 Stator Resistance,
1-33 Stator Leakage Reactance and 1-35 Main Reactance.
1-22 Motor Voltage (U_
Range:Function:
230/400 V [50-999 V] Enter motor voltage from nameplate
1-23 Motor Frequency (f_
Range:Function:
50 Hz* [20-400 Hz] Enter motor frequency from nameplate
data.
1-24 Motor Current (I_
Range:Function:
M-type dependent* [0.01-100.00 A] Enter motor current from
1-25 Motor Nominal Speed (n_
Range:Function:
M-type Dependent* [100–9999
RPM]
data.
m.n
m.n
)
)
)
m.n
nameplate data.
)
m.n
Enter motor nominal speed
from nameplate data.
1-29 Automatic Motor Tuning (AMT)
Option:Function:
NOTICE
To gain optimum tuning of the
frequency converter, run AMT on a cold
motor.
[3]Complete
AMT with
Rotating
motor
NOTICE
When set to this option, the motor will
rotate.
With this option, 1-35 Main Reactance (X2) is
also optimized, other than parameters 1-30
Stator Resistance (Rs) and 1-33 Stator Leakage
Reactance (X1).
4.2.2 1-3* Adv. Motor Data
Adjust advanced motor data using one of these methods:
1.Run AMT on cold motor. The frequency converter
measures value from motor.
2.Enter X1 value manually. Obtain value from motor
supplier.
3.Use Rs, X1, and X2 default setting. The frequency
converter establishes setting based on motor
nameplate data.
NOTICE
These parameters cannot be changed while the motor
runs.
44
1-29 Automatic Motor Tuning (AMT)
Option:Function:
Use AMT to optimise motor performance.
When 1-01 Motor Control Principle is set to [0]U/f, AMT does not work.
NOTICE
This parameter cannot be changed
while the motor runs.
1.Stop the frequency converter - make
sure that the motor is at standstill
[0] * OffAMT function is disabled.
[2]Enable AMT AMT function starts running.
start signal on terminal 18
Illustration 4.1 Advanced Motor Data Parameters
1-30 Stator Resistance (Rs)
Range:Function:
Depending on motor data* [Ohm] Set stator resistance value.
1-33 Stator Leakage Reactance (X1)
Range:Function:
Depending on motor
data*
[Ohm] Set stator leakage reactance
of motor.
Magn. current
130BD016.10
Hz
Par.1-50
Par.1-51
100%
Par.1-52RPM
Motor Voltage
Par 1-55 [x]
Output Frequency
Par 1-56 [x]
1-55[5]
1-55[4]
1-55[3]
1-55[2]
1-55[1]
1-55[0]
1-56
[0]
1-56
[1]
1-56
[2]
1-56
[3]
1-56
[4]
1-56
[5]
130BD017.10
Parameter Descriptions
VLT® Micro Drive FC 51
1-35 Main Reactance (X2)
Range:Function:
Depending on motor data* [Ohm] Set motor main reactance.
4.2.3 1-5* Load Independent Setting
1-56 U/f Characteristic - F
Range:Function:
Simplify U/f characteristics by merging 2 or
more points (voltages and frequencies),
respectively, are set equal.
This parameter group is for setting the load independent
motor settings.
44
1-50 Motor Magnetization at Zero Speed
Range:Function:
This parameter enables different thermal
load on motor when running at low speed.
100 %* [ 0–300%] Enter a percentage of rated magnetizing
current. If setting is too low, motor shaft
torque may be reduced.
1-52 Min. Speed Normal Magnetizing [Hz]
Range:Function:
0.0 Hz* [0.0–10.0
Hz]
Use this parameter along with 1-50 MotorMagnetizing at Zero Speed.
Set frequency required for normal
magnetizing current. If frequency is set
lower than motor slip frequency, 1-50 MotorMagnetizing at Zero Speed is inactive.
Illustration 4.3 U/f Characteristics
NOTICE
For 1-56 U/f characteristics - F the following applies
[0] ≦ [1] ≦ [2] ≦ [3] ≦ [4] ≦ [5]
Illustration 4.2 Parameters 1-50 and 1-52
1-55 U/f Characteristic - U
Range:Function:
This parameter is an array parameter [0-5]
and is only functional when 1-01 MotorControl Principle is set to [0] U/f.
0.0 V* [0.0–
999.9 V]
Enter voltage at each frequency point to
manually form a U/f characteristic matching
motor. Frequency points are defined in 1-56U/f characteristics - F.
1-56 U/f Characteristic - F
Range:Function:
This parameter is an array parameter [0-5] and
is only functional when 1-01 Motor ControlPrinciple is set to [0] U/f.
0.0
Hz*
[0.0–
1000.0
Hz]
Enter frequency points to manually form a U/f
characteristic matching motor. Voltage at each
point is defined in 1-55 U/f Characteristic - U.
Make a U/f characteristic based on 6 definable
voltages and frequencies, see Illustration 4.3.
4.2.4 1-6* Load Dependent Setting
Parameters for adjusting the load-dependent motor
settings.
1-60 Low Speed Load Compensation
Range:Function:
Use this parameter to gain optimum U/f
characteristic when running at low speed.
100 %* [0–199%]Enter percentage in relation to load when
motor runs at low speed.
Change-over point is automatically calculated
based on motor size.
Use this parameter to obtain optimum load
compensation when running at high speed.
100 %* [0–199%]Enter percentage to compensate in relation
to load when motor runs at high speed.
Change-over point is automatically calculated
based on motor size.
1-62 Slip Compensation
Range:Function:
100 %* [-400–399%]Compensation for load dependent motor
slip.
Slip compensation is calculated automatically based on rated motor speed, n
M,N
.
NOTICE
This function is only active when 1-00
Configuration Mode, is set to [0]
Speed Open Loop and when 1-01
Motor Control Principle, is set to [1]
+
VVC
1-71 Start Delay
Range:Function:
The start delay defines the time to pass from a
start command is given until the motor starts
accelerating.
Setting start delay to 0.0 s disables 1-72 StartFunction, when start command is given.
0.0s* [0.0–
10.0 s]
Enter the time delay required before
commencing acceleration.
1-72 Start Function is active during Start delay
time.
1-72 Start Function
Option:Function:
[0]DC Hold/Delay
Time
[1]DC Brake/
Delay Time
[2] * Coast/Delay
Time
Motor is energised with DC holding current
(2-00 DC Hold Current) during start delay
time.
Motor is energised with DC braking current
(2-01 DC Brake Current) during start delay
time.
Inverter is coasted during start delay time
(inverter off).
1-73 Flying Start
Option:Function:
The Flying Start parameter is used to catch a
spinning motor after eg. mains drop-out.
NOTICE
This function is not suitable for hoisting
applications.
[0] * Disabled Flying start is not required.
[1]Enabled Frequency converter enabled to catch spinning
motor.
NOTICE
When flying start is enabled 1-71 Start
Delay, and 1-72 Start Function, have no
function.
44
1-63 Slip Compensation Time
Range:Function:
0.10 s [0.05–5.00s]Enter slip compensation reaction speed. A
high value results in slow reaction whereas
a low value results in quick reaction.
If low-frequency resonance problems arise,
use longer time setting.
4.2.5 1-7* Start Adjustments
Considering the need for various start functions in different
applications, it is possible to select a number of functions
in this parameter group.
To meet the need for various stop functions in different
application these parameters offer some special stop
features for the motor.
1-80 Function at Stop
Option:Function:
The selected function at stop is active in following
situations:
Stop command is given and output
•
speed is ramped down to Min. Speed for
Function at Stop.
Start command is removed (standby), and
•
output speed is ramped down to Min.
Speed for Function at Stop.
Parameter Descriptions
VLT® Micro Drive FC 51
1-80 Function at Stop
Option:Function:
DC-brake command is given, and DC-
•
brake time has passed
While running and calculated output
•
speed is below Min. Speed for Function at
Stop.
[0] * CoastThe inverter is coasted.
44
[1]DC
hold
The motor is energised with a DC current. See 2-00DC Hold Current for more information.
1-82 Min. Speed For Function at Stop [Hz]
NOTICE
When the ETR function has been selected the drive will
store the recorded temperature at power down and this
temperature will resume at power up regardless of the
elapsed time. Changing 1-90 Motor Thermal Protection
back to [0] No Protection will reset the recorded
temperature.
1-93 Thermistor Resource
Option:Function:
Select the thermistor input terminal.
[0]*NoneNo thermistor is connected.
Range:Function:
0.0 Hz* [0.0–20.0 Hz]
Set the speed at which to activate 1-80Function at Stop.
[1]Analog
Input 53
Connect thermistor to analog input terminal 53.
NOTICE
Analog input 53 cannot be selected for
4.2.7 1-9* Motor Temperature
other purposes when selected as
thermistor resource.
With an estimated motor temperature monitor the
frequency converter is able to estimate motor temperature
without having a thermistor mounted. It is thus possible to
receive a warning or an alarm, if motor temperature
exceeds upper operational limit.
1-90 Motor Thermal Protection
Option:Function:
Using ETR (Electronic Terminal Relay) the
motor temperature is calculated based on
frequency, speed and time. Danfoss
recommends using The ETR function, if a
thermistor is not present.
NOTICE
ETRElectronic Overload calculation is
[6]Digital
input 29
Connect thermistor to digital input terminal 29.
While this input functions as thermistor input, it
will not respond to the function chosen in 5-13Digital Input 29. The value of 5-13 Digital Input 29
remains unchanged in parameter database while
function is inactive.
Input Digital/
Analog
Digital10 V
Analog10 V
Table 4.1 Threshold Cut-out Values
Supply
Voltage
Threshold Cut-
out
Values
<800 Ω⇒ 2.9
kΩ
<800 Ω⇒ 2.9
kΩ
based on motor data from parameter
group 1-2* Motor Data.
[0] * No
Protection
[1]Thermistor
Warning
[2]Thermistor
Trip
[3]ETR Warning If calculated upper limit of motor
[4]ETR TripIf 90% of calculated upper limit of motor
Disables temperature monitoring.
A thermistor connected to either digital or
analog input gives a warning if upper limit
of motor temperature range is exceeded,
(see 1-93 Thermistor Resource).
A thermistor connected to either digital or
analog input gives an alarm and makes the
frequency converter trip if upper limit of
motor temperature range is exceeded, (see
1-93 Thermistor Resource.
temperature range is exceeded, a warning
occurs.
temperature range is exceeded, an alarm
occurs and the frequency converter trips.
The purpose of DC-brake function is to brake a rotating
motor by applying DC-current to the motor.
2-00 DC Hold Current
Range:Function:
This parameter either holds the motor (holding
torque) or pre-heats the motor.
The parameter is active if DC Hold has been
selected in either 1-72 Start Function or 1-80Function at Stop.
50%* [0–
150%]
Enter a value for holding current as a
percentage of the rated motor current set in
1-24 Motor Current. 100% DC holding current
corresponds to I
M,N
.
NOTICE
Avoid 100% current too long as it may overheat the
motor.
2-01 DC Brake Current
Range:Function:
50%* [0–
150%]
2-02 DC-Braking Time
Range:Function:
10.0 s* [0.0–60 s]
Set DC-current needed to brake rotating motor.
Activate DC-brake in one of the four following
ways:
1.
DC-brake command, see 5-1* DigitalInputs choice [5]
2.
DC Cut-in function, see 2-04 DC-Brake
Cut-in Speed
3.DC-brake selected as start function, see
1-72 Start Function
4.
DC-brake in connection with FlyingStart, 1-73 Flying Start.
DC-braking time defines the period during
which DC-brake current is applied to the
motor.
Set the time DC-braking current, set in 2-01DC Brake Current, must be applied.
2-04 DC-Brake Cut-in Speed
Range:Function:
0.0 Hz* [0.0–400.0
Hz]
Set DC-brake cut-in speed to activate DC
braking current, set in 2-01 DC BrakeCurrent, when ramping down.
When set to 0 the function is off.
4.3.2 2-1* Brake Energy Function
Use the parameters in this group for selecting dynamic
braking parameters.
2-10 Brake Function
Option:Function:
NOTICE
Resistor brake is only functional in
frequency converters with integrated
dynamic brake. An external resistor must
be connected.
Resistor brake
The resistor brake limits voltage in the
intermediate circuit when the motor acts as
generator. Without brake resistor, the frequency
converter eventually trips.
The resistor brake consumes surplus energy
resulting from motor braking. A frequency
converter with brake, stops a motor faster than
without a brake, which is used in many
applications. Requires connection of external
brake resistor.
An alternative to the resistor brake is the AC
brake.
AC brake
The AC brake consumes surplus energy by
creating power loss in the motor.
It is important to keep in mind that an increase
in power loss causes motor temperature to rise.
* OffNo brake function.
[0]
[1]Resistor
Brake
[2]AC Brake AC brake is active.
2-11 Brake Resistor (Ohm)
Range:Function:
5 Ω* [5–5000 Ω]Set brake resistor value.
Resistor brake is active.
44
NOTICE
If DC-brake is activated as start function, DC-brake time
is defined by start delay time.
Change this parameter affects the value of 2-11Brake Resistor (Ohm).
Use this parameter to set the voltage reduction for
resistor braking. It is only active when 2-10 BrakeFunction is set to [1] Resistor Brake. This function is
valid for 400 v, 5.5–15 kW units.
Parameter Descriptions
VLT® Micro Drive FC 51
2-16 AC Brake, Max Current
Range:Function:
100.0%* [0.0–150.0%] Enter max. permissible current for ACbraking to avoid overheating of motor.
100% equals motor current set in 1-24Motor Current.
2-17 Over-Voltage Control
Option:Function:
44
[0] * DisabledThe OVC is not active/required.
[1]Enabled,
not at stop
[2]EnabledOVC is running, also when a stop signal is
Use overvoltage control (OVC) to reduce the
risk of the frequency converter tripping due to
an over voltage on the DC link caused by
generative power from the load.
An over-voltage occurs eg. if the ramp down
time is set too short compared to the actual
load inertia.
OVC is running unless a stop signal is active.
active.
2-22 Activating Mechanical Brake
Range:Function:
If the motor is stopped using ramp, the
mechanical brake is activated when motor speed is
less than Active Brake Speed.
Motor is ramped down to stop in the following
situations:
A start command is removed (stand by)
•
A stop command is activated
•
Quick-stop is activated (Q-stop ramp is
•
used)
0
[0–
Select motor speed at which mechanical brake
Hz*
400
activates when ramping down.
Hz]
Mechanical brake automatically activates if
frequency converter trips or reports an alarm.
NOTICE
If Resistor Brake has been chosen in 2-10 Brake Function
the OVC is not active even though enabled in this
parameter.
4.3.3 2-2* Mechanical Brake
For hoisting applications an electro-magnetic brake is
required. The brake is controlled by a relay, which releases
the brake when activated.
The brake activates if the frequency converter trips or a
coast command is given. Furthermore, it activates when
motor speed is ramped down below the speed set in 2-22Active Brake Speed.
2-20 Release Brake Current
Range:Function:
0.00 A* [0.00–100 A] Select motor current at which mechanical
brake releases.
NOTICE
If start delay time has passed, and
motor current is below Releasebrake current, frequency converter
trips.
Parameters for reference handling, definition of limitations,
and configuration of the frequency converter's reaction to
changes
4.4.1 3-0* Reference Limits
Parameters for setting the reference unit, limits and ranges.
3-00 Reference Range
Option:Function:
Select the range of reference and feedback
signals.
[0] * Min to
Max
[1]-Max to
+Max
3-02 Minimum Reference
Range:Function:
0.00* [-4999-4999] Enter value for minimum reference.
3-03 Maximum Reference
Range:Function:
60.000 Hz if
parameter 0-03 is set
to US; 50.000 Hz if
parameter 0-03 is set
to International *
Reference setpoint ranges can have positive
values only.
Select this if running in Process Closed Loop.
Ranges can have both positive and negative
values.
If potentiometer is used to adjust motor running
in both direction, set reference range to –Max
Reference to Max Reference by par.=[1] Choose
hand on mode by LCP. Adjust the potentiometer
to minimum, the motor can run in anti-clockwise
with max speed. Then adjust the potentiometer
to maximum, the motor will ramp down to 0 and
run clockwise with max speed.
The sum of all internal and external
references are clamped (limited) to the
minimum reference value, 3-02 MinimumReference.
Maximum Reference is
adjustable in the range
Minimum Reference–4999.
[-4999–
4999]
Enter value for Maximum
Reference.
The sum of all internal and
external references are
clamped (limited) to the
maximum reference value,
3-03 Maximum Reference.
4.4.2 3-1* References
Parameters for setting up the reference sources. Select the
preset references for the corresponding digital inputs in
parameter group, 5-1* Digital Inputs.
3-10 Preset Reference
Option:Function:
Each parameter set-up contains 8 preset
references which are selectable via 3 digital
inputs or bus.
[18]
Bit2
0000
0011
0102
0113
1004
1015
1106
1117
Table 4.2 Parameter Group 5-1* Digital
Inputs Option [16], [17] and [18]
[0.00]*-100.00–
100.00%
Enter the different preset references using
array programming.
Normally, 100%=value set in 3-03 MaximumReference.
However, there are exceptions if 3-00 ReferenceRange is set to [0] Min - Max.
Example 1:
3-02 Minimum Reference is set to 20 and 3-03
Maximum Reference is set to 50. In this case
0%=0 and 100%=50.
Example 2:
3-02 Minimum Reference is set to -70 and 3-03
Maximum Reference is set to 50. In this case
0%=0 and 100%=70.
3-11 Jog Speed [Hz]
Range:Function:
Jog speed is a fixed output speed and
overrules the selected reference speed, see
parameter group 5-1* Digital Inputs option [14].
If the motor is stopped while in jog mode, the
jog signal acts as a start signal.
Removing the jog signal makes the motor run
according to the selected configuration.