This section contains safety instructions which you must follow when installing, operating and servicing the drive. If
ignored, physical injury or death may follow, or damage may occur to the drive, motor or driven equipment. Read the
safety instructions before you work on the drive.
safeTy
Use of Warnings
Warnings caution you about conditions which can result in
serious injury or death and/or damage to the equipment, and
advise on how to avoid the danger. The following warning
symbols are used in this manual:
DANGER
Electricity warning warns of hazards from electricity which
can cause physical injury or death and/or damage to the
equipment.
WARNING
General warning warns about conditions, other than those
caused by electricity, which can result in physical injury and/
or damage to the equipment.
Safety in Installation and
Maintenance
These warnings are intended for all who work on the drive,
motor cable or motor.
Electrical safety
DANGER
Ignoring the following instructions can cause physical injury or
death, or damage to the equipment.
Only qualied electricians are allowed to install and
maintain the drive!
• Never work on the drive, motor cable or motor when input
power is applied. After disconnecting the input power,
always wait for 5 minutes to let the intermediate circuit
capacitors discharge before you start working on the
drive, motor or motor cable.
Always ensure by measuring with a multimeter
(impedance at least 1 Mohm) that there is no voltage
between the drive input phases U1, V1 and W1 and the
ground.
• Do not work on the control cables when power is applied
to the drive or to the external control circuits. Externally
supplied control circuits may carry dangerous voltage
even when the input power of the drive is switched off.
• Do not make any insulation or voltage withstand tests on
the drive.
• If a drive whose EMC lter is not disconnected is installed
on an IT system (an ungrounded power system or a high
resistance-grounded [over 30 ohms] power system), the
system will be connected to ground potential through the
EMC lter capacitors of the drive. This may cause danger
or damage the drive.
• If a drive whose EMC lter is not disconnected is installed
on a corner grounded TN system, the drive will be
damaged.
• All ACS320 Drive End Grounding screws are removed at
the factory. See Product Overview for location details.
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safeTy
• All ELV (extra low voltage) circuits connected to the drive
must be used within a zone of equipotential bonding,
ie within a zone where all simultaneously accessible
conductive parts are electrically connected to prevent
hazardous voltages appearing between them. This is
accomplished by a proper factory grounding.
NOTE: Even when the motor is stopped, dangerous voltage
is present at the power circuit terminals U1, V1, W1
and U2, V2, W2. For more technical information,
contact your local Daikin sales representative.
General Safety
DANGER
Ignoring the following instructions can cause physical injury or
death, or damage to the equipment.
• Never attempt to repair a malfunctioning drive; contact
your local Daikin sales representative or authorized
Daikin Service for service support.
• Make sure that dust from drilling does not enter the drive
during the installation. Electrically conductive dust inside
the drive may cause damage or lead to malfunction.
• Ensure sufcient cooling.
Safe Start-Up and Operation
These warnings are intended for all who plan the operation,
start up or operate the drive.
General Safety
WARNING
Ignoring the following instructions can cause physical injury or
death, or damage to the equipment.
• Before adjusting the drive and putting it into service,
make sure that the motor and all driven equipment
are suitable for operation throughout the speed range
provided by the drive. The drive can be adjusted to
operate the motor at speeds above and below the speed
provided by connecting the motor directly to the power
line.
• Do not activate automatic fault reset functions if
dangerous situations can occur. When activated, these
functions will reset the drive and resume operation after
a fault.
• Do not control the drive with an AC contactor or
disconnecting device (disconnecting means); use
the control panel start and stop keys and or external
commands (I/O or eldbus). The maximum allowed
number of charging cycles of the DC capacitors (ie
power-ups by applying power) is two per minute and the
maximum total number of chargings is 15,000.
NOTE: If an external source for start command is selected
and it is ON, the drive will start immediately after an
input voltage break or fault reset unless the drive is
congured for 3-wire (a pulse) start/stop.
When the control location is not set to local (LOC not
shown on the display), the stop key on the control
panel will not stop the drive. To stop the drive using
the control panel, rst press the LOC/REM key LOC
and then the stop key.
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InTroduCTIon
InTroduCTIon
InTroduCTIon
This section describes applicability, target audience and purpose of this manual. It describes the contents of this manual
and refers to a list of related manuals for more information. The chapter also contains a owchart of steps for checking
the delivery, installing and commissioning the drive. The owchart refers to chapters/sections in this manual.
Applicability
The manual is applicable to the ACS320 drive rmware version
4.00E or later. See parameter 3301 FW VERSION on page
56.
Target Audience
The reader is expected to know the fundamentals of electricity,
wiring, electrical components and electrical schematic symbols.
The manual is written for readers worldwide. Both SI
and imperial units are shown. Special US instructions for
installations in the United States are given.
Purpose of the Manual
This manual provides information needed for planning the
installation, installing, commissioning, using and servicing the
drive.
Categorization by Frame Size
The ACS320 is manufactured in frame sizes R0…R4. Some
instructions and other information which only concern certain
frame sizes are marked with the symbol of the frame size
(R0…R4). To identify the frame size of your drive, see the table
in section Ratings, types and voltages on page 102.
Contents of this Manual
The manual consists of the following chapters:
• Safety (page 5) gives safety instructions you must
follow when installing, commissioning, operating and
servicing the drive.
• Introduction to the manual describes applicability, target
audience, purpose and contents of this manual. It also
contains a quick installation and commissioning owchart.
• Operation principle and hardware description (page
7) describes the operation principle, layout, power
connections and control interfaces, type designation label
and type designation information in short.
• Start-Up (page 12) tells how to start up the drive as
well as how to start, stop, change the direction of the
motor rotation and adjust the motor speed through the I/O
interface
• Program features (page 24) describes program
features with lists of related user settings, actual signals,
and fault and alarm messages.
• Actual signals and parameters (page 30) describes
actual signals and parameters. It also lists the default
values for the different macros.
• Fault tracing (page 90) tells how to reset faults and
view fault history. It lists all alarm and fault messages
including the possible cause and corrective actions.
Maintenance and hardware diagnostics (page 99)
contains preventive maintenance instructions and LED
indicator descriptions.
• Technical data (page 102) contains technical
specications of the drive, eg. ratings, sizes and technical
requirements as well as provisions for fullling the
requirements for CE and other marks.
OM 1190-1 • MD4 VFD 6 www.DaikinApplied.com
operaTIon prInCIple/Hardware desCrIpTIon
operaTIon prInCIple/Hardware desCrIpTIon
The chapter briey describes the operation principle, layout, type designation label and type designation information.
It also shows a general diagram of power connections and control interfaces.
Operation Principle
The ACS320 is a wall or cabinet mountable drive for controlling
AC motors.
The Figure 1 shows the simplied main circuit diagram of
the drive. The rectier converts three-phase AC voltage to
DC voltage. The capacitor bank of the intermediate circuit
stabilizes the DC voltage. The inverter converts the DC voltage
back to AC voltage for the AC motor.
Figure 1: Operation Principle
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Product Overview
operaTIon prInCIple/Hardware desCrIpTIon
Layout
The layout of the drive is presented in Figure 2. The gure
shows a frame size R2 drive. The construction of the different
frame sizes R0…R4 varies to some extent.
Figure 2: Drive Components
1
2
2
3a
7
4
3b
Power Connections and Control
Interfaces
Figure 3 gives an overview of connections. I/O connections are
parameterable. See Application Macros on page 72 for I/O
connections for the different macros.
J701 Switch
for RS-485
Termination
8
9
6
11
13
5
10
12
14
17
15
16
1 Cooling outlet through top cover9 Varistor grounding screw (VAR)
2 Mounting holes 10 RS-485 connection
3 Panel cover (a) / Assistant Control Panel (c)11 Jumper J701 for connecting RS-485 termination resistor
4 Terminal cover12 I/O connections
5 Panel connection13 Switch S1 for selecting voltage or current for analog inputs
6 Option connection14
7 Power OK and Fault LEDs. See section LEDs on page 101.15 I/O clamping plate
EMC lter grounding screw (EMC). Note: The screw is on the front in frame
8
size R4.
Input power connection (U1, V1, W1) and motor connection (U2, V2, W2).
(Braking chopper connection is disabled.)
16 Clamping plate
17 Clamps
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Figure 3: Overview of connections
operaTIon prInCIple/Hardware desCrIpTIon
J701 Switch
Termination
for RS-485
Communication
GND A for RS-485 Shield
Wire Termination in 2-Wire
Shielded Cable System
Wiring
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Connecting the Control Cables
This section applies only to units shipping without MicroTech
controllers but need eld controls installed.
I/O Terminals
Figure 4 shows the I/O terminals. Tighten torque is 0.4 Nm/3.5
in-lbs.
Figure 4: I/O Terminals
operaTIon prInCIple/Hardware desCrIpTIon
Voltage and Current Selection for
Analog Inputs
Switch S1 selects voltage (0 [2]…10 V / -10…10 V) or current
(0 [4]…20 mA / -20…20 mA) as the signal types for analog
inputs AI1 and AI2. The factory settings are unipolar voltage
for AI1 (0[2]…10V) and unipolar current for AI2 (0[4]…20mA),
which correspond to the default usage in the application
macros. The switch is located to the left of I/O terminal 9,
Figure 4.
Figure 5: Voltage and Current Switch Locations
Permenently afx control cables with a minimum 1/4" spacing
from power cables.
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Connecting the Embedded Fieldbus
Embedded eldbus can be connected to the drive with RS-485
or RS-232. This section applies only to units shipping without
MicroTech controllers but need eld controls installed.
Connection Diagrams
RS-485
Figure 6 shows the eldbus connection/
Figure 6: Fieldbus Connections for RS-485
Terminate the RS-485 bus with a 120 ohm resistor at the end
of the network by setting the jumper J701 shunts as shown.
operaTIon prInCIple/Hardware desCrIpTIon
Figure 7: J701 Jumper Shunts
RS-232
Plug a communication cable into the control panel connection
X2. The cable must be sharter than 3 meters.
Figure 8: RS-232 Connection
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MD4 HVAC Control Panel Features
Figure 9: MD4 HVAC control panel features
Status LED
(Green when normal,
if ashing or red,see
Diagnostics.)
UP
Soft Key 1
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AUTO
DOWN
OFF
• Language selection for the display
• Drive connection that can be made or detached at any
time
• Start-up assistant to facilitate drive commissioning
• Copy function for moving parameters to other MD4 drives
• Backup function for saving parameter sets
• Context sensitive help
• Real-time clock
Soft Key 2
HELP
(always available)
HAND
General Display Features
Soft Key Functions
The soft key functions are dened by text displayed just above
each key.
Display Contrast
To adjust display contrast, simultaneously press and
or , as appropriate.
Macros
NOTE: Selecting the appropriate macro should be part of
the original system design, since the control wiring
installed depends on the macro used.
1. Review the macro descriptions on page 30. Use the
macro that best ts system needs.
2. Edit parameter 9902 to select the appropriate macro.
Use either of the following:
• Use the Start-up Assistant, which displays the macro
selection immediately after motor parameter setup.
• Refer to “” on page 15, for parameter editing
instructions and follow the instructions in the
“Appendix” on page 108.
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Tuning - Parameters
The system can benet from one or more of the MD4 special
features, and/or ne tuning.
1. Review the parameter descriptions in
“ParameterDescriptions” starting on page 30. Enable
options and ne tune parameter values as appropriate
for the system.
2. Edit parameters as appropriate.
Start-Up
Figure 10: Changing the Parameters Individually
To change the parameters, follow these steps:
1
Select MENU to enter the main menu.
Fault and Alarm Adjustments
The MD4 can detect a wide variety of potential system
problems. For example, initial system operation may generate
faults of alarms that indicate set-up problems.
1. Faults and alarms are reported on the control panel with
a number. Note the number reported.
2. Review the description provided for the reported fault/
alarm:
• Use the fault and alarm listings shown in “Fault
Tracing” starting on page 90.
• Press the help key (Assistant Control Panel only)
while fault or alarm is displayed.
3. Adjust the system or parameters as appropriate.
2
3
Select the Parameters mode with the UP/DOWN buttons and
select ENTER to select the Parameters mode.
Select the appropriate parameter group with
the UP/DOWN buttons and select SEL
Select the appropriate parameter in a group
4
with the UP/DOWN buttons.
Select EDIT to change the parameter value.
5
Press the UP/DOWN buttons to change the parameter value.
Select SAVE to store the modied value or
6
select CANCEL to leave the set mode.
Any modications not saved are cancelled.
7
Select EXIT to return to the listing of parameter groups,
and again to return to the main menu.
To complete the control connections by manually entering the parameters, see “Parameters Mode” in this section.
For detailed hardware description, see the “Technical data” section.
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NOTE: The current parameter value appears below the
highlighted parameter.
To view the default parameter value, press the UP/
DOWN buttons simultaneously.
The most typical and necessary parameters to
change are parameter groups 99 Start-up data, 10
Start/Stop/Dir, 11 Reference Select, 20 Limits, 21
Start/Stop, 22 Accel/Decel, 30 Fault Functions and
98 & 53 Groups for Comms.
To restore the default factory settings, select the
application macro HVAC default.
Modes
The MD4 HVAC control panel has several different modes for
conguring, operating and diagnosing the drive. The modes are:
• Standard display mode – Shows drive status information
and operates the drive.
• Fault logger mode – Shows the drive fault history.
• Drive parameter backup mode – Stores or uploads the
parameters.
• Clock set mode – Sets the time and date for the drive.
• Alarm mode – Reporting mode triggered by drive alarms.
Standard Display Mode
Use the standard display mode to read information on the
drive’s status and to operate the drive. To reach the standard
display mode, press EXIT until the LCD display shows status
information as described below.
Status Information
Table 1: Status Information
Control Panel DisplaySignicance
Rotating arrow (clockwise or
counterclockwise)
Rotating dotted arrow blinkingDrive is running but not at setpoint
Stationary dotted arrow
Top . The top line of the LCD display shows the basic status
information of the drive.
• Hand – Indicates that the drive control is local, that is,
from the control panel.
• Auto – Indicates that the drive control is remote, such as
the basic I/O (X1) or eldbus.
• – Indicates the drive and motor rotation status as
follows:
Upper Right – shows the active reference.
Middle. Using parameter group 34 on page 57, the middle
of the LCD display can be congured to display:
• One to three parameter values
— The default display shows
parameters 0103 (OUTPUT
FREQ) in percentages,
0104 (CURRENT) in
amperes and 0120 (AI1) in
milliamperes.
— Use parameters 3401, 3408, and 3415 to select the
parameters (from Group 01) to display. Entering
“parameter” 0100 results in no parameter displayed.
For example, if 3401 = 0100 and 3415 = 0100, then
only the parameter specied by 3408 appears in the
Control Panel display.
— You can also scale each parameter in the display, for
example, to convert the motor speed to a display of
conveyor speed. Parameters 3402…3405 scale the
parameter specied by 3401, parameters 3409…3412
scale the parameter specied by 3408, etc.
• A bar meter rather than one of the parameter values.
— Enable bar graph displays using parameters 3404,
3411 and 3418.
• Drive is running and at setpoint
• Shaft direction is forward or reverse
Start command is present, but motor
is not running. E.g. start enable is
missing.
Bottom. The bottom of the LCD display shows:
• Lower Corners – show the functions currently assigned
to the two soft keys.
• Lower Middle – displays the current time (if congured to
show the time).
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Operating the Drive
Auto/Hand – The very rst time the drive is powered up, it is
in the auto control (AUTO) mode, and is controlled from the
Control terminal block X1.
To switch to hand control (HAND) and control the drive using
the control panel, press and hold the (HAND) or (OFF)
button.
• Pressing the HAND button switches the drive to hand
control while keeping the drive running.
• Pressing the OFF button switches to hand control and
stops the drive.
To switch back to auto control (AUTO), press and hold the
button.
Hand/Auto/Off – To start the drive press the HAND or AUTO
buttons, to stop the drive press the OFF button.
Reference – To modify the reference (only possible if the
display in the upper right corner is in reverse video) press the
UP or DOWN buttons (the reference changes immediately).
The reference can be modied in the local control mode, and
can be parameterized (using Group 11 reference select, page
39) to also allow modication in the remote control mode.
NOTE: The Start/Stop, Shaft direction and Reference
functions are only valid in local control (LOC) mode.
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Parameters Mode
Figure 11: Changing in the Parameters
To change the parameters, follow these steps:
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1
2
3
Select the Parameters mode with the UP/DOWN buttons and
Select MENU to enter the main menu.
select ENTER to select the Parameters mode.
Select the appropriate parameter group with
the UP/DOWN buttons and select SEL
Select the appropriate parameter in a group
4
with the UP/DOWN buttons.
Select EDIT to change the parameter value.
5
Press the UP/DOWN buttons to change the parameter value.
Select SAVE to store the modied value or select CANCEL to leave the set
mode.
6
• Any modications not saved are cancelled.
• Each individual parameter setting is valid immediately after pressing SAVE.
7
To complete the control connections by manually entering the parameters, see Parameters Mode above.
For detailed hardware description, see the “Technical Data” starting on page 102 .
Select EXIT to return to the listing of parameter groups,
and again to return to the main menu.
NOTE: The current parameter value appears below the
highlighted parameter.
To view the default parameter value, press the UP/
DOWN buttons simultaneously.
The most typical and necessary parameters to
change are parameter groups 99 Start-up data, 10
Start/Stop/Dir, 11 Reference Select, 20 Limits, 21
Start/Stop, 22 Accel/Decel, 30 Fault Functions and
98 & 53 Groups for Comms.
To restore the default factory settings, select the
application macro HVAC default.
OM 1190-1 • MD4 VFD 16 www.DaikinApplied.com
Changed Parameters Mode
Figure 12: Changing in the Parameters Mode
To view (and edit) a listing of all parameters that have been changed from macro default values, follow these steps:
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1
2
6
To complete the control connections by manually entering the parameters, see Parameters Mode, page 15.
For detailed hardware description, see the “Technical Data” starting on page 102 .
Select CHANGED PAR with the UP/DOWN buttons and select ENTER.
Select MENU to enter the main menu.
A list of changed parameters is displayed.
Select EXIT to exit the parameters mode.
Fault Logger Mode
Use the Fault Logger Mode to see drive fault history, fault state
details and help for the faults.
1. Select FAULT LOGGER in the Main Menu.
2. Press ENTER to see the latest faults (up to 10 faults,
maximum).
3. Press DETAIL to see details for the selected fault.
— Details are available for the three latest faults.
4. Press DIAG to see the help description for the fault. See
“Fault Tracing”,page 90.
NOTE: If a power off occurs, only the three latest faults will
remain (with details only in the rst fault).
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Drive Parameter Backup Mode
Use the parameter backup mode to export parameters from
one drive to another. The parameters are uploaded from a
drive to the control panel and downloaded from the control
panel to another drive. Two options are available:
Par Backup Mode
The Assistant Control Panel can store a full set of drive
parameters.
Figure 13: Changing the Drive Parameter Backup
To upload parameters to control panel, follow these steps:
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The Par Backup mode has these functions:
• Upload to Panel – Copies all parameters from the
drive to the Control Panel. This includes user sets of
parameters (if dened) and internal parameters such as
those created by the Motor Id Run. The Control Panel
memory is non-volatile and does not depend on the
panel’s battery.
1
2
3
4
Select PAR BACKUP with the UP/DOWN buttons and select ENTER.
The text “Copying parameters” and a progress diagram is displayed.
Select MENU to enter the main menu.
Scroll to Upload to Panel and select SEL.
Select ABORT if you want to stop the process
The text “Parameter upload successful” is displayed and the control panel
5
returns to the PAR BACKUP menu. Select EXIT to return to the main menu.
Now you can disconnect the panel.
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Download Full Set – Restores the full parameter set from the
Control Panel to the drive. Use this option to restore a drive, or
to congure identical drives. This download does not include
user sets of parameters.
Figure 14: Downloading All Parameters
To download all parameters to drive, follow these steps:
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1
2
3
4
Select MENU to enter the main menu.
Select PAR BACKUP with the UP/DOWN buttons.
Scroll to Download to drive all and select SEL.
The text “restoring parameters” is displayed.
Select ABORT if you want to stop the process.
After the download stops, the message “Parameter download successful” is
5
displayed and the control panel goes back to PAR BACKUP menu.
Select EXIT to return to the main menu.
NOTE: Download Full Set writes all parameters to the drive,
including motor parameters. Only use this function to
restore a drive, or to transfer parameters to systems
that are identical to the original system.
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Download Application – Copies a partial parameter set from
the Control Panel to a drive. The partial set does not include
internal motor parameters, parameters 9905…9909, 1605,
1607, 5201, nor any Group 51 and 53 parameters. Use this
option to transfer parameters to systems that use similar
congurations – the drive and motor sizes do not need to be
the same.
Figure 15: Downloading Applications
To download application to drive, follow these steps:
1
2
3
Scroll to DOWNLOAD APPLICATION and select SEL..
Select MENU to enter the main menu.
Select PAR BACKUP with the UP/DOWN buttons.
• Download User Set 1 - Copies USER S1 parameters
(user sets are saved using parameter 9902 APPLIC
MACRO) from the Control Panel to the drive.
• Download User Set 2 - Copies USER S2 parameters
from the Control Panel to the drive.
4
The text “Parameter download successful” is displayed and the control panel
5
The text “Downloading parameters (partial)” is displayed.
Select ABORT if you want to stop the process.
returns to PAR BACKUP menu. Select EXIT to return to the main menu.
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Handling Inexact Downloads
In some situations, an exact copy of the download is not
appropriate for the target drive. Some examples:
• A download to an old drive species parameters/values
that are not available on the old drive.
• A download (from an old drive) to a new drive does not
have denitions for the new parameters – parameters
that did not originally exist.
As a default, the control panel handles these situations by:
• Discarding parameters/
values not available on the
target drive.
• Using parameter default
values when the download
provides no values or
invalid values.
• Providing a Differences List
– A listing of the type and number of items that the target
cannot accept exactly as specied.
You can either accept the default edits by pressing READY, or
view and edit each item as follows:
1. Highlight an item type in the Differences List (left screen
below) and press SEL to see the details for the selected
type (right screen below).
Download Failures
In some situations, the drive may be unable to accept a
download. In those cases, the control panel display is:
“Parameter download failed” plus one of the following causes:
• Set not found – You are attempting to download a data
set that was not dened in the backup. The remedy is to
manually dene the set, or upload the set from a drive
that has the desired set denitions.
• Par lock – The remedy is to unlock the parameter set
(parameter 1602, page 46).
• Incompat drive/model – The remedy is to perform
backups only between drives of the same type and the
same model.
• Too many differences – The remedy is to manually dene
a new set, or upload the set from a drive that more
closely resembles the target drive.
NOTE: If upload or download of parameters is aborted, the
partial parameter set is not implemented.
Clock Set Mode
The clock set mode is used for setting the time and date for
the internal clock of the ACS320. In order to use the timer
functions of the ACS320, the internal clock has to be set rst.
Date is used to determine weekdays and is visible in Fault
logs.
In the right “details” screen:
• The rst item that requires editing is automatically
highlighted and includes details: In general, the rst item
listed in the details is the value dened by the backup le.
The second item listed is the “default edit.”
• For tracking purposes, an asterisk initially appears by
each item. As edits are made, the asterisks disappear.
2. In the illustrated example, the backup species a
switching frequency of 12 kHz, but the target drive is
limited to 8 kHz.
3. Press EDIT to edit the parameter. The display is the
target drive’s standard edit screen for the selected
parameter.
4. Highlight the desired value for the target drive.
5. Press SAVE to save setting.
6. Press EXIT to step back to the differences view and
continue for each remaining exception.
7. When your editing is complete, press READY in the
Differences List and then select “Yes, save parameters.”
www.DaikinApplied.com 21 OM 1190-1 • MD4 VFD
Figure 16: Changing the Clock Set
To set the clock, follow these steps:
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1
2
3
4
5
Scroll to Clock Visibility with the UP/DOWN buttons and
Scroll to Set Time with the UP/DOWN buttons and select SEL.
Select MENU to enter the main menu.
Scroll to Clock Set with the UP/ DOWN buttons and
select ENTER to enter the Clock Set mode.
select SEL to change the visibility of the clock.
Scroll to Show Clock with the UP/DOWN buttons and
select SEL to make the clock visible.
Change the hours and minutes with the UP/DOWN buttons and
6
select OK to save the values.
The active value is displayed in inverted color.
7
The different formats are displayed. Select a format with the UP/DOWN buttons and
8
9
Scroll to Time Format with the UP/DOWN buttons and select SEL.
select SEL to conrm the selection.
Scroll to Set Date with the UP/DOWN buttons and select SEL.
Change the days, months and year with the UP/DOWN buttons and
10
select OK to save the values.
The active value is displayed in inverted color.
11
The Date formats are displayed. Select a date format with the UP/DOWN buttons and
12
Scroll to Date Format with the UP/DOWN buttons and select SEL.
select OK to conrm the selection.
13
Select EXIT twice to return to the main menu.
OM 1190-1 • MD4 VFD 22 www.DaikinApplied.com
HVAC Default
This macro provides the factory default parameter settings
for the MD4. Factory defaults can be restored at any time by
setting parameter 9902 to 1. The diagram below shows typical
wiring using this macro. When using direct speed reference in
AUTO mode or process PID, see “General Considerations” on
page 73.
Figure 17: MD4 HVAC Defaults
sTarT up
Recommended Daikin adjustments to the “HVAC Default” are shown on page 108
www.DaikinApplied.com 23 OM 1190-1 • MD4 VFD
program feaTures
program feaTures
This section describes program features. For each feature, there is a list of related user settings, actual signals, and
fault and alarm messages.
Programmable Analog Inputs
The drive has two programmable analog voltage/current
inputs. The inputs can be inverted, ltered and the maximum
and minimum values can be adjusted. The update cycle for
the analog input is 8 ms (12 ms cycle once per second). The
cycle time is shorter when information is transferred to the
application program (8 ms -> 2 ms).
Table 2: Programmable Analog Input Settings
ParameterAdditional Information
Group 11:ReferenceSelect AI as reference source
Group 13: Analog InputsAnalog input processing
3001, 3021, 3022, 3107AI loss supervision
Group 35: Motor Temp MeasAI in motor temperature measurement
Group 40: Process PID Set 1 …
Group 42: External PID
Group 44: Pump Protection
Table 3: Programmable Analog Input Diagnostics
Actual SignalAdditional Information
0120, 0121Analog input values
1401 AI1/A2signal loss
Alarm
AI1 LOSS / AI2 LOSS
Fault
AI1 LOSS / AI2 LOSS
PAR AI SCALE
AI as PID process control reference
or actual value source
AI as pump protection measurement
source
AI1/AI2 signal below AI1/AI2 FAULT
LIMIT (3021/3022)
AI1/AI2 signal below limit AI1/AI2
FAULT LIMIT (3021/3022)
Incorrect AI signal scaling (1302 <
1301 or 1305 < 1304)
Programmable Analog Output
One programmable current output (0…20 mA) is available.
Analog output signal can be inverted, ltered and the maximum
and minimum values can be adjusted. The analog output
signals can be proportional to motor speed, output frequency,
output current, motor torque, motor power, etc. The update
cycle for the analog output is 2 ms.
It is also possible to write a value to an analog output through a
serial communication link.
Table 4: Programmable Analog Output Settings
ParameterAdditional Information
Group 15: Analog OutputsAO value selection and processing
Group 35: Motor Temp Meas
Table 5: Programmable Analog Output Diagnostics
Actual SignalAdditional Information
0124AO value
Fault
PAR AO SCALE
AO in motor temperature
measurement
Incorrect AO signal scaling (1503 <
1502)
OM 1190-1 • MD4 VFD 24 www.DaikinApplied.com
program feaTures
Programmable Digital Inputs
The drive has ve programmable digital inputs. The update
time for the digital inputs is 2 ms. It is possible to delay the
state change of digital inputs with delays dened in group
Group 18: FREQ IN & TRAN OUT. This enables very simple
program sequences by connecting several functions with the
same physical wire, eg to remove branches and leaves from a
pipe by running the fan in reverse before normal operation.
One digital input (DI5) can be programmed as a frequency
input. See section “Frequency Input”.
Table 6: Programmable Digital Inputs Settings
ParameterAdditional Information
Group 10: AcStart/Stop/DirDI as start, stop, direction
Group 11: Reference Select
Group 12: Constant SpeedsDI in constant speed selection
Group 16: System Controls
Group 18: FREQ IN & TRAN OUT
2109
2201
2209DI as zero ramp force signal
Table 7: Programmable Digital Inputs Diagnostics
Actual SignalAdditional Information
0160DI status
0414
DI in reference selection, or reference
source
DI as external Run Enable, fault reset
or user macro change signal
DI as external emergency stop
command source
DI as acceleration and deceleration
ramp selection signal
DI status at the time the latest fault
occurred
Programmable Relay Output
The drive has one programmable relay output. It is possible
to add three additional relay outputs with the optional Relay
Output Extension Module MREL-0. For more information,
see MREL-01 Relay Output Extension Module User’s Manual
(3AUA0000035974 [English]).
With a parameter setting it is possible to choose what
information to indicate through the relay output: Ready,
running, fault, alarm, etc. The update time for the relay output
is 2 ms.
A value can be written to a relay output through a serial
communication link.
Table 8: Programmable Relay Output Settings
ParameterAdditional Information
Group 14: Relay Outputs
RO value selections and operation
times
Table 9: Programmable Relay Output Diagnostics
Actual SignalAdditional Information
0134
0162RO 1 status
0173
ROControl Word through eldbus
control
RO 2…4 status. With option MREL01 only
Frequency Input
Digital input DI5 can be programmed as a frequency input.
Frequency input (0…16000 Hz) can be used as external
reference signal source. The update time for the frequency
input is 50 ms. Update time is shorter when information is
transferred to the application program (50 ms -> 2 ms).
Table 10: Frequency Input Settings
ParameterAdditional Information
Group 18: FREQ IN & TRAN OUT
1103/1106
4010, 4110, 4210
Frequency input minimum and
maximum values and ltering
External reference REF1/2 through
frequency input
Frequency input as PID reference
source
Table 11: Frequency Input Diagnostics
Actual SignalAdditional Information
0161Frequency input value
www.DaikinApplied.com 25 OM 1190-1 • MD4 VFD
program feaTures
Actual Signals
Several actual signals are available:
• Drive output frequency, current, voltage and power
• Motor speed and torque
• Circuit DC voltage
• Active control location (LOCAL, EXT1 or EXT2)
• Drive temperature
• Operating time counter (h), kWh counter
• Digital I/O and analog I/O status
Three signals can be shown simultaneously on the assistant
control panel display (one signal on the basic panel display).
It is also possible to read the values through the serial
communication link or through the analog outputs.
Table 12: Actual Signals Settings
ParameterAdditional Information
1501Selection of an actual signal to AO
1801
Group 32: SupervisionActual signal supervision
Group 34: Panel Display Process
Variables
Table 13: Actual Signals Diagnostics
Actual SignalAdditional Information
Group 01: Operating Data … Group
04: Fault History
Selection of an actual signal to
frequency output
Selection of an actual signals to be
displayed on the control panel
Lists of actual signals
Power Loss Ride-Through
If the incoming supply voltage is cut off, the drive will continue
to operate by utilizing the kinetic energy of the rotating motor.
The drive will be fully operational as long as the motor rotates
and generates energy to the drive. The drive can continue
the operation after the break if the main contactor remained
closed.
Figure 18: Power Loss Ride-Through Diagram
Settings
Parameter 2006 UNDERVOLT CTRL, page 48
OM 1190-1 • MD4 VFD 26 www.DaikinApplied.com
program feaTures
Maintenance Trigger
A maintenance trigger can be activated to show a notice on
the panel display when e.g. drive power consumption has
exceeded the dened trigger point.
Settings
Parameter Group 29: Maintenance Trig, page 53
Acceleration and Deceleration Ramps
Two user-selectable acceleration and deceleration ramps are
available. It is possible to adjust the acceleration/deceleration
times and the ramp shape. Switching between the two ramps
can be controlled via a digital input or eldbus. The available
ramp shape alternatives are Linear and S-curve.
Figure 19: Acceleration And Deceleration Ramps
Critical Speeds
A Critical Speeds function is available for applications where
it is necessary to avoid certain motor speeds (drive output
frequencies) or speed bands (output frequency bands)
because of eg mechanical resonance problems. The user can
dene three critical frequencies or frequency bands.
Settings
Parameter Group 25: Critical Speeds, page 51
Constant Speeds
It is possible to dene seven positive constant speeds.
Constant speeds are selected with digital inputs. Constant
speed activation overrides the external speed reference.
Constant speed selections are ignored if
• PID reference is being followed, or
• Drive is in local control mode.
This function operates on a 2 ms time level.
Settings
Parameter Group 12: Constant Speeds, page 42
Constant speed 7 (1208 CONST SPEED 7) is also used for
fault functions, page 42. See parameter group Group 30:
Fault Functions, page 53.
Linear: Suitable for drives requiring steady or slow
acceleration/deceleration.
S-curve: Ideal for conveyors carrying fragile loads, or other
applications where a
smooth transition is required when changing the speed.
Settings
Parameter Group 22: Accel/Decel, page 50
Programmable Protection Functions
AI<Min
AI<Min function denes the drive operation if an analog input
The drive protects the motor in a stall situation. It is possible to
adjust the supervision limits (frequency, time) and choose how
the drive reacts to the motor stall condition (alarm indication /
fault indication & drive stop / no reaction).
Settings
Parameters 3010…3012, page 53
Earth Fault Protection
The Earth Fault Protection detects earth faults in the motor or
motor cable. The protection is active only during start.
An earth fault in the input power line does not activate the
protection.
Settings
Parameter 3017 EARTH FAULT, page 53
Incorrect Wiring
Denes the operation when incorrect input power cable
connection is detected.
Settings
Parameter 3023 WIRING FAULT, page 53
Operation Limits
The drive has adjustable limits for output frequency, current
(maximum) and DC voltage.
Settings
Parameter Group 20: Limits, page 48
Power Limit
Power limitation is used to protect the input bridge and the
DC intermediate circuit. If the maximum allowed power is
exceeded, the drive torque is automatically limited. Maximum
overload and continuous power limits depend on the drive
hardware. For specic values, see chapter Technical data on
page 102
.
Automatic Resets
The drive can automatically reset itself after overcurrent,
overvoltage, undervoltage, external and “analog input below a
minimum” faults. The Automatic Resets must be activated by
the user.
Table 14: Automatic Resets Settings
ParameterAdditional Information
Group 31: Automatic Reset Automatic reset settings
Preprogrammed faults
Overcurrent
The overcurrent trip limit for the drive is 325% of the drive
nominal current.
DC Overvoltage
The DC overvoltage trip limit is 420 V (for 200 V drives) and
840 V (for 400 V drives).
DC Undervoltage
The DC undervoltage trip limit is adaptive. See parameter 2006
UNDERVOLT CTRL, page 48.
Drive Temperature
The drive supervises the IGBT temperature. There are two
supervision limits: Alarm limit and fault trip limit.
Short Circuit
If a short circuit occurs, the drive will not start and a fault
indication is given.
Internal Fault
If the drive detects an internal fault, the drive is stopped and a
fault indication is given.
Table 15: Automatic Resets Diagnostics
AlarmAdditional Information
AUTORESETAutomatic reset alarm
Supply Phase Loss
If the drive detects supply phase loss (excessive DC voltage
ripple), the drive is stopped and a fault indication is given.
OM 1190-1 • MD4 VFD28www.DaikinApplied.com
program feaTures
Supervisions
The drive monitors whether certain user selectable variables
are within the user-dened limits. The user may set limits for
speed, current etc. The supervision status can be indicated
through relay or digital output.
The supervision function outputs can be used for triggering
some drive functionality (start/stop, sleep, pump cleaning).
The supervision functions operate on a 2 ms time level.
Settings
Parameter group Group 32: Supervision
Table 16: Supervisions Diagnostics
Actual SignalAdditional Information
1001/1002
140Supervision status through RO 1
1402/1403/1410
1805Supervision status through DO
4022/4122
4601
EXT1/EXT2 start/stop according to
supervision functions
Supervision status through RO 2…4.
With option MREL-01 only.
Sleep start according to supervision
functions
Pump clean trigger according to
supervision functions
Energy Optimizer
Energy optimizer optimizes the ux so that the total energy
consumption and motor noise level are reduced when the drive
operates below the nominal load. The total efciency (motor
and drive) can be improved by 1…10% depending on load
torque and speed.
Energy saving tools calculate energy saved in kWh and MWh,
energy saved in local currency as well as reduction in CO2
emission, all compared to the situation when the pump is
connected directly to the supply.
Table 17: Energy Optimizer Settings
ParameterAdditional Information
Group 45: Energy SavingsEnergy saving settings
Table 18: Energy Optimizer Diagnostics
Actual SignalAdditional Information
0174/0175Energy saved in kWh/Mwh
0176/0177Energy saved in local currency
0178Reduction in CO
emi
2
Parameter Lock
The user can prevent parameter adjustment by activating the
parameter lock.
Settings
Parameters 1602 PARAMETER LOCK and 1603 PASS CODE,
page 46
www.DaikinApplied.com 29 OM 1190-1 • MD4 VFD
aCTual sIgnalsand parameTers
aCTual sIgnalsand parameTers
This section describes the actual signals and parameters that a Daikin user needs to understand and gives the
eldbus equivalent values for each signal/parameter. It also contains a table of the default values for the different
macros. See page 108 for recommended Daikin values.
NOTE: When the control panel is in the short parameter
view, ie when parameter 1611 PARAMETER VIEW is
set to 2 (SHORT VIEW), the control panel only shows
a subset of all signals and parameters. The list of
these signals and parameters starts on page 31.
To be able to view all actual signals and parameters, set
parameter 1611 PARAMETER VIEW to 3 (LONG VIEW). The
descriptions of parameters start on page 31.
Terms and Abbreviations
Term Denition
Actual signal Signal measured or calculated by the drive. Can be monitored by the user. No user setting possible.
Groups 01…04 contain actual signals.
Def Parameter default value
Parameter A user-adjustable operation instruction of the drive. Groups 10…99 contain parameters.
NOTE: Note: Parameter selections are shown on the Basic Control Panel as integer values. Eg
parameter 1001 EXT1 COMMANDS selection COMM is shown as value 10 (which is equal to
the eldbus equivalent FbEq).
FbEq Fieldbus equivalent: The scaling between the value and the integer used in serial communication.
OM 1190-1 • MD4 VFD 30 www.DaikinApplied.com
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