Equipment containing electrical components may not be disposed together
with domestic waste.
It must be separate collected with Electrical and
Electronic Waste according to local and currently
valid legislation.
Compressors:
Danfoss recommends not to thriw away a used
compressor but to a dispose of the compressor
and its oil at a specialised recycling company site
Caution
The CD 302 Compressor Drive™ DC link capacitors remain charged after power has been disconnected. To avoid an electrical shock hazard,
disconnect the CD 302 from the mains before
carrying out maintenance. Wait at least as follows
before doing service on the frequency converter:
CD 302: ≤ 7.5 kW 4 minutes
CD 302: 11 . 22 kW 15 minutes
Be aware that there may be high voltage on the
DC link even when the LEDs are turned off.
CD302 Operating Instructions Software version:
1.0x
These Operating Instructions can be used for all
CD302 Compressor Drives™ with software version
1.0x.
The software version number can be seen from
parameter 15-43.
High Voltage Warning
The voltage of the CD 302 is dangerous
whenever the converter is connected to mains.
Incorrect fitting of the motor or frequency
converter may cause damage to the equipment,
serious injury or death. Consequently, it is essential to comply with the instructions in this manual
as well as local and national rules and safety regulations.
Safety Instructions
• Make sure the CD 302 is properly connected to
earth.
• Do not remove mains plugs or motor plugs
while the CD 302 is connected to mains.
• Protect users against supply voltage.
• Protect the motor against overloading according to national and local regulations.
• Motor overload protection is included in the
default settings
• The earth leakage current exceeds 3.5 mA.
• The [OFF] key is not a safety switchIt does not
disconnect the CD 302 from mains.
General warning
Warning:
Touching the electrical parts may be fatal - even
after the equipment has been disconnected from
mains.
Also make sure that other voltage inputs have
been disconnected, such as load-sharing (linkage
of DC intermediate circuit).Using CD 302 Compressor Drives™: wait at least 15 minutes.
Shorter time is allowed only if indicated on the
nameplate for the specific unit.
Leakage Current
The earth leakage current from the CD 302
exceeds 3.5 mA. To ensure that the earth cable
has a good mechanical connection to the earth
connection (terminal 95), the cable cross section
must be at least 10 mm
wires terminated separately.
2
or 2 times rated earth
Residual Current Device
This product can cause a D.C. current in the
protective conductor. Where a residual current
device (RCD) is used for extra protection, only an
RCD of Type B (time delayed) shall be used on the
supply side of this product. See also RCD Application Note MN.90.GX.02.Protective earthing of the
CD 302 and the use of RCD.s must always follow
national and local regulations.
IT Mains
Do not connect 400 V frequency converters
with RFI-filters to mains supplies with a Voltage
between phase and earth of more than 440 V. For
IT mains and delta earth (grounded leg), mains
voltage may exceed 440 V between phase and
earth.
Par. 14-50 RFI 1 can on CD 302 be used to disconnect the internal RFI capacitors from the RFI
filter to ground. If this is done it will reduce the RFI
performance to A2 level.
Before Commencing Repair Work
1. Disconnect CD 302 from mains
2. Disconnect DC bus terminals 88 and 89
3. Wait for discharge of the DC-link. See period of
time on the warning label.
4. Remove motor cable
Avoid Unintended Start
While CD 302 is connected to mains, the motor
can be started/stopped using digital commands,
bus commands, references or via the Local
Control Panel (LCP).
• Disconnect the CD 302 from mains whenever
personal safety considerations make it necessary
to avoid unintended start.
• To avoid unintended start, always activate the
[OFF] key before changing parameters.
• An electronic fault, temporary overload, a fault
in the mains supply, or lost motor connection
may cause a stopped motor to start. CD 302 with
Safe Stop provides a certain degree of protection against such unintended start, if the Safe
Stop Terminal 37 is on low voltage level or disconnected.
Safe Stop of CD 302
The CD 302 can perform the safety function Safe
Torque Off (As defined by draft CD IEC 61800-5-
2) or Stop Category 0 (as defined in EN 60204-1).
It is designed and approved suitable for the requirements of Safety Category 3 in EN 954-1.
This functionality is called Safe Stop. Prior to integration and use of Safe Stop in an installation, a
thorough risk analysis on the installation must
be carried out in order to determine whether the
Safe Stop functionality and safety category are
appropriate and sufficient. In order to install and
use the Safe Stop function in accordance with the
requirements of Safety Category 3 in EN 954-1,
the related information and instructions of the
CD 302 Design Guide must be followed!
The information and instructions of the Operating Instructions are not sufficient for a correct
and safe use of the Safe Stop functionality!
General Specifications
Mains supply (L1, L2, L3)
• Supply voltage: 200-240 V ±10%
• Supply voltage: 380-480 V ±10%
• Supply voltage: 525-600 V ±10%
• Supply frequency: 50/60 Hz
• Maximbalance temporary between mains
phases: 3.0 % of rated supply voltage
• True Power Factor (λ): ≥ 0.9 nominal at rated
load
• Displacement Power Factor (cos φ) near unity:
(> 0.98)
• Switching on input supply L1, L2, L3 (powerups) ≤ 7.5 kW: maximum 2 times/min.
• Switching on input supply L1, L2, L3 (powerups) ≥ 11 kW: maximum 1 time/min.
• Environment according to EN60664-1: overvoltage category III/pollution degree 2
The unit is suitable for use on a circuit capable of
delivering not more than 100.000 RMS symmetrical Amperes, 240/500/600 V maximum.
Motor compressor output (U, V, W)
• Output voltage: 0 - 100% of supply voltage
• Switching on output: see param number 14-01
in table page 28.
Digital inputs
• Voltage level: 0 - 24 V DC
• Voltage level, logic.0. PNP: < 5 V DC
• Voltage level, logic.1. PNP: > 10 V DC
• Voltage level, logic .0. NPN2): > 19 V DC
• Voltage level, logic .1. NPN2): < 14 V DC
• Maximum voltage on input: 28 V DC
• Input resistance, Ri: approx. 4 kΩ
Safe stop Terminal 37
Terminal 37 is fixed PNP logic
• Voltage level: 0 - 24 V DC
• Voltage level, logic.0. PNP: < 4 V DC
• Voltage level, logic.1. PNP: >20 V DC
• Nominal input current at 24 V: 50 mA rms
• Nominal input current at 20 V: 60 mA rms
• Input capacitance: 400 nF
All digital inputs are galvanically isolated from
the supply voltage (PELV) and other high-voltage
terminals.
1) Terminals 27 and 29 can also be programmed
as output.
2) Except safe stop input Terminal 37.
3) Terminal 37 can only be used as safe stop input.
Terminal 37 is suitable for category 3 installations
according to EN 954-1 (safe stop according to
category 0 EN 60204-1) as required by the EU
Machinery Directive 98/37/EC. Terminal 37 and
the Safe Stop function are designed in conformance with EN 60204-1, EN 50178, EN 61800-2,
EN 61800-3, and EN 954-1. For correct and safe
use of the Safe Stop function follow the related
information and instructions in the Design Guide.
Analog inputs
• Number of analog inputs: 2
• Terminal number: 53, 54
• Modes: Voltage or current
• Mode select: Switch S201 and switch S202
• Voltage mode: Switch S201/switch S202 = OFF
(U)
• Voltage level: -10 to +10 V (scaleable)
• Input resistance, Ri: approx. 10 kΩ
• Max. voltage: ± 20 V
• Current mode: Switch S201/switch S202 = ON
(I)
• Current level: 0/4 to 20 mA (scaleable)
• Input resistance, Ri: approx. 200 Ω
• Max. current: 30 mA
• Resolution for analog inputs: 10 bit (+ sign)
• Accuracy of analog inputs: Max. error 0.5% of
full scale
• Bandwidth: 100 Hz
The analog inputs are galvanically isolated from
the supply voltage (PELV) and other high-voltage
terminals.
Digital output
• Programmable digital/pulse outputs: 2
• Terminal number: 27, 29
• Voltage level at digital/frequency output: 0 - 24
V
• Max. output current (sink or source): 40 mA
• Max. load at frequency output: 1 kΩ
• Max. capacitive load at frequency output: 10 nF
• Minimum output frequency at frequency
output: 0 Hz
• Maximum output frequency at frequency
output: 32 kHz
• Accuracy of frequency output: Max. error: 0.1 %
of full scale
• Resolution of frequency outputs: 12 bit
1) Terminal 27 and 29 can also be programmed as
input.
The digital output is galvanically isolated from the
supply voltage (PELV) and other high-voltage terminals.
Analog output
• Number of programmable analog outputs: 1
• Terminal number: 42
• Current range at analog output: 0/4 - 20 mA
• Max. load to common at analog output: 500 Ω
• Accuracy on analog output: Max. error: 0.5 % of
full scale
• Resolution on analog output: 12 bit
The analog output is galvanically isolated from
the supply voltage (PELV) and other high-voltage
terminals.
Control card, 24 V DC output
• Terminal number: 12, 13
• Max. load: 200 mA
The 24 V DC supply is galvanically isolated from
the supply voltage (PELV), but has the same po-
tential as the analog and digital inputs and outputs.
Control card, 10 V DC output
• Terminal number: 50
• Output voltage: 10.5 V ±0.5 V
• Max. load: 15 mA
The 10 V DC supply is galvanically isolated from
the supply voltage (PELV) and other high-voltage
terminals.
• Terminal number 61: Common for terminals 68
and 69
The RS 485 serial communication circuit is functionally separated from other central circuits and
galvanically isolated from the supplier voltage
(PELV).
Control card, USB serial communication
• USB standard: 1.1 (Full speed)
• USB plug: USB type B .device. plug
Connection to PC is carried out via a standard
host/device USB cable.
The USB connection is galvanically isolated from
the supply voltage (PELV) and other high-voltage
terminals. The USB ground connection is not
galvanically isolated from protection earth. Use
only isolated laptop as PC connection to the USB
connector on CD 302 drive.
•Accessory Bag ≤ 7.5 kW, IP55• Accessory Bag 11 – 22 kW
Mechanical mounting
1) Drill holes in accordance with the measurements given.
2) You must provide screws suitable for the surface on which you want to mount the CD 302.
Retighten all four screws.
Mechanical Dimension
CD 302 IP20 allows side-by-side installation.
Because of the need for cooling, there must be a
minimum of 100 mm free air passage above and
below the CD 302.
The back wall must always be solid. All CD302 are
equiped of a back metal plate to garantee proper
heat exchanger ventilation. Never remove this
metal sheet.
Safety Requirements of Mechanical Installation
The frequency converter is cooled by means of air
circulation.
To protect the unit from overheating, it must be
ensured that the ambient temperature does not
exceed the maximum temperature stated for the
frequency converter and that the 24-hour average temperature is not exceeded. If the ambient
temperature is in the range of 45°C - 55°C, derating of the frequency converter will become relevant. The service life of the frequency converter
is reduced if derating for ambient temperature is
not taken into account.
Cables general
Always comply with national and local regulations on cable cross-sections.
Tightening-up Torque
CD size Cable for: Tightening
up torque
3-7.5 kWLine, load sharing motor
Compressor cable
11-22 kW Line, load sharing motor
compressor cable
11-22 kW Motor compressor cable 1.8 Nm
Relay0.5 - 0.6 Nm
Earth2 - 3 Nm
1.8 Nm
1.8 Nm
• Removal of knockouts for extra cables
- Remove cable entry from the frequency converter (Avoiding foreign parts in the frequency
converter when removing knockouts)
- Cable entry has to be supported around the
knockout you intend to remove.
- The knockout can now be removed with a
strong mandrel and a hammer.
- Remove burrs from the hole.
- Mount Cable entry on frequency converter.
• Connection to Mains and Earthing
How to connect to mains and earthing (A2 and
A3 enclosure).
- Make sure the CD 302 is properly earthed.
Connect to earth connection (terminal 95). Use
screw from the accessory bag.
- Place plug connector 91, 92, 93 from the accessory bag onto the terminals labelled MAINS at the
bottom of CD302.
- Connect mains wires to the mains plug connector.
Connection to Mains and Earthing
How to connect to mains and earthing (B1 and
B2 enclosure)
• IT Mains
Check that mains voltage corresponds to the
mains voltage of the CD302 name plate.
L1, L2, L3 mains have to be connected preferably
clockwise direction
3 Phase
Power
Input
91 (L1)
92 (L2)
93 (L3)
95 PE
• Motor compressor connection
Motor compressor cable must be screened / armoured. If an unscreened / unarmoured cable is
used, some EMC requirements are not complied
with. For more information, see EMC specifications.
- Fasten decoupling plate to the bottom of CD302
with screws and washers from the accessory bag.
- Attach motor compressor cable to terminals 96
(U), 97 (V), 98 (W).
- Connect to earth connection (terminal 99) on
decoupling plate with screws from the accessory
bag.
- Insert terminals 96 (U), 97 (V ), 98 (W) and motor
compressor cable to terminals labelled MOTOR.
Fasten screened cable to decoupling plate with
screws and washers from the accessory bag.
U, V, W for motor compressor need to be clockwise
connected. Note that VTZ compressors can rotate
on both directions, but when used in manifolded
sytems all compressors must have the same rotation direction to avoid vibration interferences.
≤7.5 kW IP 55
11 - 22 kW IP 21/55
≤7.5 kW IP 20
• Motor compressors cables
Correct dimensioning of motor compressor cable
cross-section and length is described in the application manual.
- Use a screened/armoured motor compressor
cable to comply with EMC emission specifications.
- Keep the motor compressor cable as short as
possible to reduce the noise level and leakage
currents.
- Connect the motor compressor cable screen to
both the decoupling plate of the CD302 and to
the metal cabinet of the motor compressor.
- Make the screen connections with the largest
possible surface area (cable clamp). This is done
by using the supplied installation devices in the
CD302.
• Electrical installation of motor compressor
cables
- Screening of cables :
Avoid installation with twisted screen ends (pigtails). They spoil the screening effect at higher
frequencies. If it is necessary to break the screen
to install a motor compressor isolator or motor
compressor contactor, the screen must be continued at the lowest possible HF impedance.
- Cable length and cross-section :
The frequency converter has been tested with a
given length of cable and a given cross-section
of that cable. If the cross-section is increased, the
cable capacitance - and thus the leakage current
- may increase, and the cable length must be reduced correspondingly.
- Switching frequency : The switching frequency
is factory set at 3.5 kHz.
tors are not recommended. Terminals can accept
aluminium conductors but the conductor surface has to be clean and the oxidation must be
removed and sealed by neutral acid free Vase-
• Fuses
- Branch circuit protection:
In order to protect the installation against electrical and fire hazard, all branch circuits in an
installation, switch gear, machines etc., must be
shortcircuit and overcurrent protected according
to the national/international regulations.
- Short circuit protection:
The frequency converter must be protected
line grease before the conductor is connected.
Furthermore, the terminal screw must be retightened after two days due to the softness of the
aluminium. It is crucial to keep the connection a
against short-circuit to avoid electrical or fire
hazard. Danfoss recommends using the fuses
mentioned below to protect service personnel or
other equipment in case of an internal failure in
the drive. The frequency converter provides full
short circuit protection in case of a short-circuit
on the motor compressor output.
- Over current protection:
Provide overload protection to avoid fire hazard
gas tight joint, otherwise the aluminium surface
will oxidize again.
due to overheating of the cables in the installation. The frequency converter is equipped with
an internal over current protection that can be
used for upstream overload protection (UL-applications excluded). See par. 4-18. Moreover, fuses
or circuit breakers can be used to provide the
over current protection in the installation. Over
current protection must always be carried out
according to national regulations.
- Non UL compliance :
If UL/cUL is not to be complied with, we recommend using the following fuses, which will ensure compliance with EN50178.In case of malfunction, not following the
recommendation may result in unnecessary damage of the frequency converter.
CD 302Max. fuse sizeVoltageType
3K0-3K7 32A* 200-240 V type gG
3K0-4K0 20A* 380-480 V type gG
5K5-7K5 32A* 380-480 V type gG
11K 63A* 380-480 V type gG
15K 63A* 380-480 V type gG
18K 63A* 380-480 V type gG
22K 80A* 380-480 V type gG
* : Max. fuses - see national/ international regulations for selecting an applicable fuse size.
• Electrical motor compressor protection
The electrical motor compressor protection is
fully provided by the CD302 frequency converter.
- CD302 makes through an Electronic current
measurement anti-overload and lock-rotor motor
compressor protection (see description in the
application manual).
- The frequency converter is protected against
short-circuits on compressor terminals U, V, W.
- If a mains phase is missing, the frequency
converter trips or issues a warning (depending on
the load).
- If a motor compressor phase is missing, the
frequency converter trips.
- The frequency converter is protected against
earth faults on compressor terminals U, V, W.
- The frequency converter is protected against
short circuits on compressor terminals U, V, W.
- Monitoring of the intermediate circuit voltage
ensures that the frequency converter trips if the
intermediate circuit voltage is too low or too high.
Terminal 37 is the input to be used for Safe Stop.
Very long control cables and analog signals may
in rare cases and depending on installation result
in 50/60 Hz earth loops due to noise from mains
supply cables.
If this occurs, you may have to break the screen
or insert a 100 nF capacitor between screen and
chassis.
The digital and analog in- and outputs must be
connected separately to the CD302 common
inputs (terminal 20, 55, 39) to avoid ground currents from both groups to affect other groups.
For example, switching on the digital input may
disturb the analog input signal.
- Control cables must be screened/armoured.
Use a clamp from the accessory bag to connect
the screen to the CD 302 decoupling plate for
control cables.
Generally speaking, control cables must be
braided screened/armoured and the screen must
be connected by means of a cable clamp at both
ends to the metal cabinet of the unit.
The drawing indicates how correct earthing is
carried out and what to do if in doubt.
a. Correct earthing
Control cables and cables for serial communication must be fitted with cable clamps at both ends
to ensure the best possible electrical contact.
b. Wrong earthing
Do not use twisted cable ends (pigtails). They increase the screen impedance at high frequencies.
c. Protection with respect to earth potential
between PLC(Program Logic Controller) and
CD 302
If the earth potential between the frequency
converter and the PLC (etc.) is different, electric
noise may occur that will disturb the entire system. Solve this problem by fitting an equalising
cable, next to the control cable. Minimum cable
cross-section: 16mm2.
d. For 50/60 Hz earth loops
If very long control cables are used, 50/60 Hz
earth loops may occur. Solve this problem by
connecting one end of the screen to earth via a
100nF capacitor (keeping leads short).
e. Cables for serial communication
Eliminate low-frequency noise currents between
two frequency converters by connecting one
end of the screen to terminal 61. This terminal
is connected to earth via an internal RC link. Use
twisted-pair cables to reduce the differential
mode interference between the conductors.
8 | AN000086420674en-000201
• Electrical Installation - EMC protection
The following is a guideline to good engineering
practice when installing frequency converters.
Follow these guidelines to comply with EN
61800-3 First environment. If the installation is
in EN 61800-3 Second environment, i.e. industrial networks, or in an installation with its own
transformer, deviation from these guidelines is
allowed but not recommended. See also paragraphs CE Labelling, General Aspects of EMC Emission and EMC Test Results.
Good engineering practice to ensure EMC-correct electrical installation:
- Use only braided screened/armoured motor
compressor cables and braided screened/armoured control cables. The screen should provide a
minimum coverage of 80%. The screen material
must be metal, not limited to but typically copper, aluminium, steel or lead. There are no special
requirements for the mains cable.
- Installations using rigid metal conduits are not
required to use screened cable, but the motor
compressor cable must be installed in conduit
separate from the control and mains cables. Full
connection of the conduit from the drive to the
motor compressor is required. The EMC performance of flexible conduits varies a lot and information from the manufacturer must be obtained.
- Connect the screen/armour/conduit to earth at
both ends for motor compressor cables as well as
for control cables.
In some cases, it is not possible to connect the
• Safe Stop Installation
To carry out an installation of a Category 0 Stop
(EN60204) in conformance with Safety Category
3 (EN954-1), follow these instructions:
1. The bridge ( jumper) between Terminal 37 and
24 V DC of CD 302 must be removed. Cutting or
breaking the jumper is not sufficient. Remove it
entirely to avoid short-circuiting. See jumper on
illustration.
2. Connect terminal 37 to 24 V DC by a short-circuit protected cable. The 24 V DC voltage supply
must be interruptible by an EN954-1 Category 3
circuit interrupt device. If the interrupt device and
the frequency converter are placed in the same
installation panel, you can use a regular cable
instead of a protected one.
screen in both ends. If so, connect the screen
at the frequency converter. See also Earthing of
Braided Screened/Armoured Control Cables.
- Avoid terminating the screen/armour with
twisted ends (pigtails). It increases the high
frequency impedance of the screen, which reduces its effectiveness at high frequencies. Use
low impedance cable clamps or EMC cable glands
instead.
- Avoid using unscreened/unarmoured motor
compressor or control cables inside cabinets housing the drive(s), whenever this can be avoided.
Leave the screen as close to the connectors as
possible.
The illustration shows an example of an EMC-correct electrical installation of an IP 20 frequency
converter.
The frequency converter is fitted in an installation
cabinet with an output contactor and connected
to a PLC, which is installed in a separate cabinet.
Other ways of doing the installation may have just
as good an EMC performance, provided the above
guide lines to engineering practice are followed.
• EMC Correct Installation of an IP20 CD302
If the installation is not carried out according
to the guideline and if unscreened cables and
control wires are used, some emission require-
ments are not complied with, although the immunity requirements are fulfilled. See the paragraph EMC test results.
• Safety earth connection
The frequency converter has a high leakage current and must be earthed appropriately for safety
reasons acording to EN 50178.
The earth leakage current from the frequency
converter exceeds 3.5 mA. To ensure a good mechanical connection from the earth cable to the
earth connection (terminal 95), the cable cross-
section must be at least 10 mm2 or 2 rated earth
wires terminated separately.
To test the set-up and ensure that the frequency
converter is running, follow these steps.
Safe Stop Commissioning Test
After installation and before first operation,
perform a commissioning test of an installation
or application making use of CD 302 Safe Stop.
Moreover, perform the test after each modification of the installation or application, which the
CD 302 Safe Stop is part of.
The commissioning test:
1. Remove the 24 V DC voltage supply to terminal
37 by the interrupt device while the motor com-
Door contact
"Coast"
Safety device Cat.3
(Circuit interrupt
device, possbly with
release input)
pressor is driven by the CD 302 (i.e. mains supply
is not interrupted). The test step is passed if the
motor compressor reacts with a coast.
2. Then send Reset signal (via Bus, Digital I/O, or
[Reset] key). The test step is passed if the motor
compressor remains in the Safe Stop state.
3. Then reapply 24 V DC to terminal 37. The test
step is passed if the motor compressor remains in
the coasted state.
4. Then send Reset signal (via Bus, Digital I/O, or
[Reset] key). The test step is passed if the motor
compressor gets operational again.
5. The commissioning test is passed if all four test
steps are passed.
FC 302
12
High Voltage Test
Carry out a high voltage test by short-circuiting
terminals U, V, W, L1, L2 and L3. Energize by max.
2.15 kV DC for one second between this short-circuit and the chassis.
NB: When running high voltage tests of the entire
installation, CD302 compressor Drive and compressor electrical motor compressor test can be
conducted together.
Warning: when conducting an high voltage
test make sure the system is not under vacuum:
this may cause electrical motor compressor failure.
Never apply the high voltage test to the
control circuit.
Mains
130BA073.11
Short-circuit protected cable
(if not inside installation cabinet)
The following instructions are valid for the graphical LCP (LCP 102):
The control panel is divided into four functional
groups:
1. Graphical display with Status lines.
2. Menu keys and indicator lights - changing
parameters and switching between display functions.
3. Navigation keys and indicator lights (LEDs).
4. Operation keys and indicator lights (LEDs). All
data is displayed in a graphical LCP display, which
can show up to five items of operating data while
displaying [Status].
Display lines
a. Status line:Status messages displaying icons
and graphic.
b. Line 1-2: Operator data lines displaying data
defined or chosen by the user. By pressing the
[Status] key, up to one extra line can be added.
c. Status line: Status messages displaying text.
Display Contrast Adjustment
Press [status] and [ ] for darker display
Press [status] and [ ] for brighter display
130BA018.12
Status
1234rpm10,4A 43,5Hz
1
Run OK
2
Status
On
3
Warn.
Alarm
4
Hand
on
Back
83,5Hz
Quick
Menu
OK
Off
Main
Menu
Auto
on
Cancel
1(0)
Alarm
Log
Reset
a
b
c
Info
Indicator lights (LEDs)
If certain threshold values are exceeded, the
alarm and/or warning LED lights up. A status and
alarm text appear on the control panel.
The on LED is activated when the frequency
converter receives mains voltage.
. Green LED/On: Control section is working.
. Yellow LED/Warn.: Indicates a warning.
. Flashing Red LED/Alarm: Indicates an alarm.
LCP keys
The control keys are divided into functions. The
keys below the display and indicator lamps are
used for parameter Set-up, including choice of
display indication during normal operation.
[Status] indicates the status of the frequency
converter and/or the motor compressor. You can
choose
between 3 different readouts by pressing the
[Status] key: 5 line readouts, 4 line readouts or
Smart Logic Control by pushing twice the [status]
key.
Use [Status] for selecting the mode of display or
for changing back to Display mode from either
the Quick Menu mode, the Main Menu mode or
Alarm mode. Also use the [Status] key to toggle
single or double read-out mode.
[Quick Menu] allows quick access to different
Quick Menus such as:
01 - My Personal Menu
02 - Quick Set-up
03 – PID Process Loop
04 - Changes Made
05 - Loggings
Use [Quick Menu] for programming the parameters belonging to the Quick Menu. It is possible to
switch directly between Quick Menu mode and
Main Menu mode.
Open loop control method
Controls using an external controller with
0-10V signal
No need to change any parameter, this is the factory setting.
Change switch 53 from U to I.
No need to change any other parameter, this is
factory setting.
Quick setup
The following lines describe the basic procedure
to run the CD302.
1) Connect the power supply to the terminals (L1,
L2 and L3) of the CD302 as shown on page 7 of
this manual.
2) Connect motor cable between the Drive (U, V &
W) and Compressor (Clockwise on terminal), see
picture of page 4.
(The connectors utilised in this first 2 steps are
provided in the accessory bag which accompanies the CD302)
3) Press “Quick menu” and go to quick setup. Ensure that the correct compressor model is selected in parameter 1-13.
4) Make connections between the terminals 12
and 18 (start signal), connections between terminal 12 and 27 (inverse coast signal) and terminals
12 and 37* (safe stop inverse signal). See pictures
on page 9.
* (Please read also on pages 11 and 14 the chapters about Safe Stop)
When the above connections are made the
compressor will start automatically.
If an error that causes the Drive to trip is
detected, it will automatically try to restart the
compressor after 30 seconds (unless the error is
severe and causes a trip lock). See also parameters 14-20 and 14-21.
Open Loop with external reference
5) Apply analogue speed reference signal (0-10V)
on terminal 53 using the terminal 55 as common.
The wiring diagram is on page 10 of this manual.
6) Check over if the switch A53 is flicked to U
(voltage) instead of I (current). The switch A53 is
located on the drive and can be seen when the
LCP is removed.
7) Ready to Run: If the Drive is supplied with dis-
play: Use “Hand on” to set a local speed reference
in the display (good for testing purposes). Use
“Auto on” for running in operation and with an
external reference.
This is how the screen will
look like after configuring
the drive for Speed Open
loop application, Hand On mode
This is how the screen will
look like after configuring
the drive for Speed Open
loop application, Auto On
mode
8) Done.
PID closed loop with 4-20 mA pressure transmitter:
9) Connect pressure transmitter to analogue
input on terminal 54 according to the schema on
page 10.
10) Make sure that the switch for analogue input
54 is set to “I” for current input.
11) Press “Quick Menu” button and go to “PID
Closed Loop” menu. Now change parameters to:
• 1-00: Select: “Process”
• 3-01: Select: “Bar”
• 3-02 + 3-03: Enter the lower and upper limits of
the set-point range [bar].
• 3-15: Set to “no function” for fixed set-point.
• 6-22 + 6-23: The values of these parameters
should match the output of the pressure transmitter (4-20 mA for example is the factory setting).
• 6-24 + 6-25: Set range of pressure transmitter
(factory setting -1/+12 bar).
• Go back to 3-13: Select “Local” to run with a fixed
Set point is adjustable on the LCP when
Par. 3-13 is set to Local.
Preferably, the last parameter to be set.
Compressor running
* These parameters will only be available if
Par. 13-00 is set to ON.
(Cut-in 3.0bar)
Par. 13-12 [0] *
(Cut-in 1.0bar)
Par. 13-12 [1] *
SMART LOGIC CONTROL: ANTI-SHORT CYCLING & PRESSOSTAT FUNCTION
Par. 13-20 [1] *
Par. 13-20 [0] *
(Recycling time = 5 min)
(Min. ON time = 0 min)
Instructions
if the set-point is given by the analogue input.
12) Press “Quick Menu” button, go to “Quick Setup”, go to parameter 0-22 and select “Feedback
[unit]” ref:[1652]. The pressure [bar] is going to be
shown in the upper right corner of the display.
This is how the screen will
look like, after configuring the drive for Closed
loop application.
13) Ready to Run: Press “Hand on” and set reference in bars using the arrows on the display.
Before leaving the site never forget the next step.
14) Ready to Run: Press “Auto on”.
Controls using a 4-20mA process signal &
CD302-PID controller
Change switch 54 from U to I
Follow the previous description.
-1/+12
4-20 mA
bar
Controls using a 4-20mA process signal &
CD302-PID controller + Smart Logic Control
Smart Logic control is preset for:
- Pump-down function
- Anti-short cycling management
- Minimum compressor running time control
Previous Process settings remain the same.
-1/+12
4-20 mA
bar
15) Prepare SLC functions: Press “Off ”.
16) Press “Quick Menu” button and go to “PID
Closed Loop” menu. Now change parameters to:
13-00: S elect: “On”
13-12[0]: Cut-in pressure factory set to 1.0 bar;
change to your needed value
13-12[1]: Cut-out pressure factory set to 3.0 bar;
change to your needed value
13-20[0]: Minimum duration between two starts;
factory set to 5 min. (recommended value)
13-12[1]: Minimum compressor running time;
factory set to 0 second. Parameter to be adjusted
with special care to guarantee a proper oil recovery from the system but the adjustment must
avoid the compressor to run under vacuum. 15
to 30 seconds is the recommended adjustment
but remaining totally dependent of the system
inertia.
17) Ready to Run: Press “Auto on”.Note: the same logic can be used for a thermostat function using a thermal sensor instead of a
pressure sensor.
Press [Auto On] to run the CD 302
[Main Menu] is used to access and program all
parameters.
It is possible to switch directly between Main
Menu mode and Quick Menu mode.
Parameter shortcut access can be carried out by
pressing down the [Main Menu] key for 3 seconds.
The parameter shortcut allows direct access to
any parameter.
[Alarm Log] displays an Alarm list of the five latest
alarms (numbered A1-A5). To obtain additional
details about an alarm, use the arrow keys to manoeuvre to the alarm number and press [OK]. You
will now receive information about the condition
of your frequency converter right before entering
the alarm mode.
[Info] supplies information about a command,
parameter, or function in any display window.
[Info] provides detailed information whenever
help is needed.
Exit info mode by pressing either [Info], [Back], or
[Cancel].
Navigation Keys
The four navigation arrows are used to navigate
between the different choices available in [Quick
Menu], [Main Menu] and [Alarm Log]. Use the
keys to move the cursor.
[OK] is used for choosing a parameter marked by
the cursor and for enabling the change of a parameter.
Local Control Keys for local control are found at
the bottom of the control panel.
[Hand On] enables control of the frequency
converter via the LCP. [Hand on] also starts the
motor compressor, and it is now possible to enter
the motor compressor speed data by means of
the arrow keys. The key can be selected as Enable
[1] or Disable [0] via par. 0-40 [Hand on] key on
LCP.
External stop signals activated by means of
control signals or a serial bus will override a .start.
command via the LCP.
The following control signals will still be active
when [Hand on] is activated:
• [Hand on] - [Off ] - [Auto on]
• Reset
• Coasting stop inverse
• Reversing
• Set-up select lsb - Set-up select msb
• Stop command from serial communication
• Quick stop
• DC brake
[Off ] stops the connected motor compressor. The
key can be selected as Enable [1] or Disable [0] via
- par. 0-41 [Off] key on LCP. If no external stop
function is selected and the [Off] key is inactive
the motor compressor can be stopped by disconnecting the voltage.
[Auto On] enables the frequency converter is
to be controlled via the control terminals and/
or serial communication. When a start signal is
applied on the control terminals and/or the bus,
the frequency converter will start. The key can be
selected as Enable [1] or Disable [0] via par. 0-42
[Auto on] key on LCP.
NB : An active HAND-OFF-AUTO signal via the
digital inputs has higher priority than
the control keys [Hand on] . [Auto on].
[Reset] is used for resetting the frequency
converter after an alarm (trip). It can be selected
as Enable [1] or Disable [0] via par. 0-43 Reset Keys
on LCP.
The parameter shortcut can be carried out by
holding down the [Main Menu] key for 3 seconds.
The parameter shortcut allows direct access to
any parameter.
Quick Transfer of Parameter Settings
Once the set-up of a drive is complete, we recommend that you store the data in the LCP or on a PC
via MCT 10 Set-up Software Tool.
Data storage in LCP
1. Go to par. 0-50 LCP Copy
2. Press the [OK] key
3. Select .All to LCP.
4. Press the [OK] key
All parameter settings are now stored in the LCP
indicated by the progress bar.
When 100% is reached, press [OK].
NB: Stop the motor compressor before performing this operation.
You can now connect the LCP to another frequency converter and copy the parameter settings to
this frequency converter as well.
Data transfer from LCP to drive
1. Go to par. 0-50 LCP Copy
2. Press the [OK] key
3. Select .All from LCP
4. Press the [OK] key
The parameter settings stored in the LCP are now
transferred to the drive indicated by the progress
bar. When 100% is reached, press [OK].
NB: Stop the motor compressor before performing this operation.
Intialisation to Default Settings
Initialise the frequency converter to default settings in two ways:
Recommended initialisation (via par. 14-22)
1. Select par 14-22
2. Press [OK]
3. Select "Initialisation"
4. Press [OK]
5. Cut Off the mains supply and wait until the display turns off.
his parameter initialises all except:
15-00 Operating Hours
15-03 Power-up's
15-04 Over temp's
15-05 Over volt's
Instructions
Par. 14-22 initialises all except:
14-50 RFI1
8-30 Protocol
8-31 Address
8-32 Baud Rate
8-35 Minimum Response Delay
8-36 Max Response Delay
8-37 Max Inter-char Delay
15-00 to 15-05 Operating data
15-20 to 15-22 Historic log
15-30 to 15-32 Fault log
Manual initialisation
1. Disconnect from mains and wait until the display turns off.
2a. Press [Status] - [Main Menu] - [OK] at the same
time while power up for LCP 102, Graphical
Display
2b. Press [Menu] while power up for LCP 101,
Numerical Display
3. Release the keys after 5s.
4. The frequency converter is now programmed
according to default settings.
Parameter Selection
In the Main menu mode, the parameters are
divided into groups. You select a parameter
groupby means of the navigation keys.
The following parameter groups are accessible:
Group n° Parameter group
0Operation/Display
1Load/Motor
2Brakes
3Reference/Ramps
4Limits/Warnings
5Digital In/Out
6Analog In/Out
7Controls
8Comm. and Options
9Profibus
10CAN fieldbus
11Reserved Com. 1
12Reserved Com. 2
13Smart Logic
14Special functions
15Drive Information
16Data Readouts
17Motor Feedb. Option
After selecting a parameter group, choose a parameter by means of the navigation keys.
The middle section on the display shows the parameter number and name as well as the selected
parameter value.
16 | AN000086420674en-000201
Changing Data
The procedure for changing data is the same whe-
ther you select a parameter in the Quick menu or
the Main menu mode. Press [OK] to change the
selected parameter.
The procedure for changing data depends on
whether the selected parameter represents a
numerical data value or a text value.
Changing a Text Value
If the selected parameter is a text value, change
the text value by means of the up/down navigation keys.
The up key increases the value, and the down key
decreases the value. Place the cursor on the value
you want to save and press [OK].
Changing a Group of Numeric Data Values
If the chosen parameter represents a numeric
data value, change the chosen data value by
means of the <> navigation keys as well as the
up/down navigation keys. Use the <> navigation
keys to move the cursor horizontally.
Use the up/down navigation keys to change the
data value. The up key enlarges the data value,
and the down key reduces the data value. Place
the cursor on the value you want to save and
press [OK].
Parameter setup modifications
Using quick menu system control modifications
can be handled very simply.
Examples:
1) Switch from open loop control 0-10 v input
to 4-20 mA.
- Change switch 53 from U to I
2) Change from Open Loop factory set to Process Loop.
- Select [Quick Menu]
- Select Q3 – PID Closed Loop
- Par: 1-00 change to [3] « Process »
- Par: 3-01 change to [71] « bar »
- Par 3-02 enter pressure sensor low range value
(factory set at -1 bar)
- Par 3-02 enter pressure sensor high range value
(factory set at 12 bar)
- Par 3-10 enter suction pressure adjustment
required as a percentage of the sensor pressure
range (28% for 3.4 bar -10°C R404A)
- Par 3-13 Select which reference site to activate.
Select Linked to Hand / Auto [0] to use the local
reference when in Hand mode; or the remote
reference when in Auto mode (factory default).
Select Remote [1] to use the remote reference in
both Hand mode and Auto mode.
Select Local [2] to use the local reference in both
Hand mode and Auto mode.
- Par 3-15 Change from Analog input 53 to [0] “No
Function”.
- Par 6-24 Preset to -1 bar
- Par 6-25 Preset to 12 bar
- Par 7-20 Preset to analog input 54 (Analog input for
PID control)
- Par 7-33 Process PID Proportionnal gain factory
set to 2
- Par 7-34 Process PID Integral time factor set to 9
s, to e modified in regards to the system inertia.
- Par 13-** are related to smart logic control.
On process control operation this function is
activated by setting 13.00 to “ON”.
o Two main controls are handled then
automatically by the CD Compressor Drive:
o 1) compressor working duration avoiding
short cycling and handling oil return from the
refrigeration system to the compressor.
. Par 13-20-0 Minimum time between two starts
is factory set at 5 minutes.
· Par 13-20-1 Minimum running time is factory
set at 0 and has to be adjusted regarding the
system design to avoid tripping on low pressure.
o 2) Pump down function that manages the
compressor On/Off cycle in regards to preset
low pressure values.
· Par 13-12-0 Low pressure cut-in value.
· Par 13-12-1 Low pressure cut-out value
Parameters: Operation and Display
* Always shows the factory set value
0-0* Basic Settings
Parameter group for basic frequency
converter settings.
Select display of motor speed parameters (i.e.
references, feedbacks and limits) in terms of shaft
speed (RPM) or output frequency to the motor
(Hz). This parameter cannot be adjusted while the
motor is running.
0-2* LCP Display
Define the display in the Graphical Logic Control
Panel.
Options are the same as in par. 0-20.
0-24 Display Line 3 Large
* Analog Input 53 ...............................................[1662]
Options are the same as in par. 0-20.
0-25 My Personal Menu
Define up to 20 parameters to include in the Q1
Personal Menu, accessible via the [Quick Menu]
key on the LCP. The parameters will be displayed
in the Q1 Personal Menu in the order they are
programmed into this array parameter. Delete
parameters by setting the value to « 0000 ».
0-4* LCP Keypad
Enable and disable individual keys on the LCP
keypad.
Select Disabled [0] to avoid accidental start of the
frequency converter in Hand mode. Select Password [2] to avoid unauthorised start in Hand mode. If par.
0-40 is included in the Quick Menu, then define the
password in par. 0-65 Quick Menu Password.
0-41 [Off] Key on LCP
Options are the same as in par. 0-40.
0-42 [Auto on] Key on LCP
Options are the same as in par. 0-40.
0-43 [Reset] Key on LCP
Options are the same as in par. 0-40.
0-5* Copy / Save
Copy parameter settings between set-ups and to/
from the LCP.
All to LCP ....................................................................... [1]
All from LCP .................................................................[2]
Size indep. from LCP ................................................[3]
Function:
Select Transfer to LCP all parameters [1] to copy
all parameters in all set-ups from the frequency
converter memory to the LCP memory.
Select Transfer from LCP all parameters [2] to copy
all parameters in all set-ups from the LCP memory
to the frequency converter memory.
Select Transfer from LCP size indep. parameters [3] to copy only the parameters that are independent of the motor size.
Copy to set-up 1 .........................................................[1]
Copy to set-up 2 .........................................................[2]
Copy to set-up 3 ........................................................[3]
Copy to set-up 4 ........................................................[4]
Copy to all .................................................................... [9]
Function:
Select Copy to set-up 1 [1] to copy all parameters in
the present edit set-up (defined in par. 0-11 Edit Set-up) to Set-up 1. Likewise, select the option
corresponding to the other set-up(s).
Select Copy to all [9] to copy the parameters in the
present set-up over to each of the set-ups 1 to 4.
0-6* Password
Define password access to menus.
0-60 Main Menu Password
Function:
Define the password for access to the Main Menu
via the [Main Menu] key. If par. 0-61 Access to Main Menu w/o Password is set to Full access [0], this
parameter will be ignored.
Read only ...................................................................... [1]
No access ...................................................................... [2]
Function:
Select Full access [0] to disable the password defined in par. 0-60 Main Menu Password. Select Read only [1] to prevent unauthorised editing of Main
Menu parameters. Select No access [2] to prevent
unauthorised viewing and editing of Main Menu
parameters. If Full access [0] is selected then parameters 0-60, 0-65 and 0-66 will be ignored.
0-65 Quick Menu Password
Function:
Define the password for access to the Quick Menu
via the [Quick Menu] key. If par. 0-66 Access to Quick Menu w/o Password is set to Full access [0],
this parameter will be ignored.
Read only ..................................................................... [1]
No access ...................................................................... [2]
Function:
Select Full access [0] to disable the password defined in par. 0-65 Quick Menu Password.
Select Read only [1] to prevent unauthorised
editing of Quick Menu parameters.
Select No access [2] to prevent nauthorised
viewing and editing of Quick Menu parameters.
If par. 0-61 Access to Main Menu w/o Password is
set to Full access [0] then this parameter will be
ignored.
Parameters: Load and Motor
1-0* General Settings
Define whether the frequency converter operates
in speed mode or torque mode; and whether the
internal PID control should be active or not.
All parameters from 1-01 (included) to 1-81 (included) are read only. Just the 1-13 remain accessible for compressor selection.
1-00 Configuration Mode
Option:
*Speed open loop .................................................... [0]
Process .........................................................................[3]
Function:
Select the application control principle to be
used when a Remote Reference (via analog input)
is active. A Remote Reference can only be active
when par. 3-13 Reference Site is set to [0] or [1].
Speed open loop [0]: Enables speed control (without feedback signal from motor) for almost
constant speed at varying loads.
Process [3]: Enables the use of process control
in the frequency converter. The process control
parameters are set in par. groups 7-2* and 7-3*.
This parameter cannot be adjusted while the
motor is running.
1-03 Torque Characteristics
Motor compressor dependant, cannot be modified.
1-04 Overload Mode
Motor compressor dependant, cannot be modified.
1-05 Local Mode Configuration
Cannot be modified, as Config Mode P1-00.
1-10 Motor Construction
Motor compressor dependant, cannot be modified (Asynchronous).
1-13 Compressor selection
Allows compressor/refrigerant set selection
1-2* Motor Data
Parameter group 1-2* comprises input data for the relevant compressor selected in Par. 1-13. These parameters cannot be modified from the CD302 data-base.
1-20 ..................................................Motor Power [kW]
1-21 ................................................... Motor Power [HP]
1-22 ..........................................................Motor Voltage
1-23 ....................................................Motor Frequency
1-24 ..........................................................Motor Current
1-25 .......................................... Motor Nominal Speed
1-3* Adv. Motor Data
Parameter group 1-2* comprises input data for the relevant compressor selected in Par. 1-13. These parameters cannot be modified from the CD302 data-base.
The frequency converter determines the motor
temperature for motor protection in two different
ways:
. Via a thermistor sensor connected to one of
the analog or digital inputs (par. 1-93 Thermistor
Source).
. Via calculation (ETR = Electronic Terminal Relay)
of the thermal load, based on the actual load and
time. The calculated thermal load is compared with
the rated motor current IM,N and the rated motor
frequency fM,N. The calculations estimate the need
for a lower load at lower speed due to less cooling
from the fan incorporated in the motor.
Select No [0] if no external fan is required, i.e. the
motor is derated at low speed.
Select Yes [1] to apply an external motor fan (external ventilation)
Analog input 53 ........................................................ [1]
Analog input 54 ........................................................ [2]
Digital input 18 ......................................................... [3]
Digital input 19 ......................................................... [4]
Digital input 32 ......................................................... [5]
Digital input 33...........................................................[6]
Function:
Select the input to which the thermistor (PTC sensor) should be connected. An analog input option
[1] or [2] cannot be selected if the analog input
is already in use as a reference source (selected
in par. 3-15 Reference Source 1, 3-16 Reference
Source 2 or 3-17 Reference Source 3).
This parameter cannot be adjusted while the
motor is running.
Parameters: Reference/Ramps
Parameters for reference handling, definition of
limitations, and configuration of the reaction of
the frequency converter to changes.
3-0* Reference Limits
Parameters for setting the reference unit, limits
and ranges.
3-00 Reference Range
Option:
*Min. - Max ................................................................... [0]
Select the range of the reference signal and the
feedback signal. Signal values can be positive
only, or positive and negative. The minimum
limit may have a negative value, unless Speed
closed loop [1] control is selected in par. 1-00
Configuration Mode.
Select Min. - Max [0] for positive values only.
Select -Max - +Max [1] for both positive and
negative values.
Select the unit to be used in Process PID Control
references and feedbacks.
3-02 Minimum Reference
Function:
Enter the Minimum Reference. The Minimum
Reference is the lowest value obtainable by summing all references.
Minimum Reference is active only when par. 3-00
Reference Range is set to Min.- Max. [0].
The Minimum Reference unit matches
- the choice of configuration in par 1-00 Configuration Mode: for Speed closed loop [1].
- the unit selected in par. 3-01 Reference/
Feedback Unit.
3-03 Maximum Reference
Enter the Maximum Reference.
3-10 Preset Reference
Must remain 0 for Open Loop Control
The preset reference is stated as a percentage of
the value RefMAX (par. 3-03 Maximum Reference)
or as a percentage of the other external references.
If a RefMIN 0 (Par. 3-02 Minimum Reference) is
programmed, the preset reference is calculated as
a percentage of the full reference range, i.e. on the
basis of the difference between RefMAX and RefMIN.
Afterwards, the value is added to RefMIN. When
using preset references, select Preset ref. bit 0 / 1 / 2
[16], [17] or [18] for the corresponding digital inputs
in parameter group 5.1* Digital Inputs.
3-13 Reference Site
Option:
*Linked to Hand / Auto .......................................... [0]
Local ............................................................................... [2]
Function:
Select which reference site to activate.
Select Linked to Hand / Auto [0] to use the local
reference when in Hand mode; or the remote
reference when in Auto mode.
Select Remote [1] to use the remote reference in
both Hand mode and Auto mode.
Select Local [2] to use the local reference in both
Hand mode and Auto mode.
Define a fixed value (in %) to be added to the
variable value (defined in par. 3-18 Relative Scaling Reference Source). The sum of the fixed and
variable values is multiplied with the actual reference (labelled X in the illustration below). This
product is then added to the actual reference
(X+X*Y/100) to give the resultant actual reference.
3-15 Reference Resource 1
Option:
No function .................................................................. [0]
Analog input 54 ......................................................... [2]
Frequency input 29...................................................[7]
Frequency input 33...................................................[8]
Local bus reference .................................................[11]
Digital pot.meter .....................................................[20]
Function:
Select the reference input to be used for the first
reference signal. Par. 3-15, 3-16 and 3-17 define
up to three different reference signals. The sum of
these reference signals defines the actual reference.
This parameter cannot be adjusted while the motor
is running.
3-16 Reference Resource 2
Option: Id. 3-15
*No function ................................................................ [0]
Function:
Select the reference input to be used for the second
reference signal. Par. 3-15, 3-16 and 3-17 define up
to three different reference signals. The sum of these
reference signals defines the actual reference.
This parameter cannot be adjusted while the motor
is running.
3-17 Reference Resource 3
Option: Id. 3-15
*No function ................................................................ [0]
Function:
Select the reference input to be used for the third
reference signal. Par. 3-15, 3-16 and 3-17 define
up to three different reference signals. The sum
of these reference signals defines the actual
reference.
This parameter cannot be adjusted while the
motor is running.
3-18 Relative Scaling Reference Resource
Option: Id. 3-15
*No function ............................................................... [0]
Select a variable value to be added to the fixed value
(defined in par. 3-14 Preset Relative Reference). The
sum of the fixed and variable values is multiplied
with the actual reference labelled X in the illustration below). This product is then added to the actual
reference (X+X*Y/100) to give the resultant actual
reference.
Because previous settings rotation is always
clockwise (positive), but be sure that CD302 U, V,
W terminals are connected to the correspondant
compressor motor terminals.
4-11 Motor Speed Low Limit [RPM]
Compressor dependent, factory set : read only
4-12 Motor Speed Low Limit [Hz]
Compressor dependent, factory set : read only
4-13 Motor Speed High Limit [RPM]
Compressor dependent, factory set : read only
4-14 Motor Speed High Limit [Hz]
Compressor dependent, factory set : read only
4-16 Torque Limit Motor Mode
Compressor dependent, factory set : read only
4-18 Current Limit
Range:
0.0 - Variable Limit % ................. Set to UL MMT
Value:
The current can be adjusted in regards to the
compressor operation.
4-19 Max Output Frequency
Compressor dependent, factory set : read only
4-5* Adj. Warnings
Adjustable warning limits for current, speed, reference and feedback.
Warnings are shown on display, programmed
output or serial bus.
4-51 Warning Current High
* As par. 1-24 Compressor dependent, factory set
: read only
Function:
When the motor current exceeds this limit (IHIGH),
the display reads CURRENT HIGH. Then the CD302
frequency converter adjusts automatically the motor compressor speed in order to reduce the load
and control the current value below the limit.
4-52 Warning Speed Low
* As par. 4-11 Compressor dependent, factory set
: read only
When motor compressor speed reach this value
or less during a period of time of two seconds
then the compressor is stopped by the CD302
frequency converter and automatically restart
after a delay set in Par. 14-21
4-53 Warning Speed High
* As par. 4-13 Compressor dependent, factory set
: read only
Select On, to display an alarm in the event of a
missing motor phase. Select Off, for no alarm in
the event of a missing motor phase. However, if
the motor runs on only two phases, it can be damaged by overheating. Retaining the On setting
is therefore strongly recommended.
This parameter cannot be adjusted while the
motor is running.
Parameters: Digital In/Out
Parameter group for configuring the digital input
Digital inputs and programmed digital outputs
are pre-programmable for operation either in
PNP or NPN systems.
Select PNP [0] systems for action on positive directional pulses ().
Select Input [0] to define terminal 27 as a digital
input.
Select Output [1] to define terminal 27 as a digital
output.
This parameter cannot be adjusted while the
motor is running.
5-02 Terminal 29 Mode
Similar to Terminal 27
5-1* Digital Inputs
Parameters for configuring the input functions
for the input terminals.
The digital inputs are used for selecting various
functions in the frequency converter.
No operation ............................................................. [0]
5-14 Terminal 32 Digital Input
Function:
No operation ............................................................. [0]
5-15 Terminal 33 Digital Input
Function:
No operation ............................................................. [0]
Parameters: Analog In/Out
Parameter group for configuration of the analog
input and output.
6-0* Analog In/Out Mode
Parameter group for setting up the analog In/Out
configuration.
CD 302 is equipped with 2 analog inputs: Terminal
53 and 54. The analog inputs on CD 302 can freely be
allocated to either voltage (-10 V - +10 V) or current
input (0/4 - 20 mA).
6-1* Analog Input 1
Parameters for configuring the scaling and limits
for analog input 1 (terminal 53). Note: that Analog
input 53 is preset for usage with “opent loop”
control on 0-10 Volt. Terminal 54 is preset for
“Process Loop” control using a pressure sensor AKS
with a pessure range of -1 : 12 bar.
Select Off [0] to cease regulation of an error when
the output frequency can no longer be adjusted.
Select On [1] to continue regulation of an error
even when the output frequency cannot be increased or decreased.
7-32 Process PID Start Speed
Set point .....................................................3000 [RPM]
Function:
Enter the motor speed to be attained as a start
signal for commencement of PID control. When
the power is switched on, the frequency converter
will commence ramping and then operate under
speed open loop control. Thereafter, when the
Process PID start speed is reached, the frequency
converter will change over to Process PID control.
Enter the PID integral time. The integrator provides
an increasing gain at a constant error between
the set point and the feedback signal. The integral
time is the time needed by the integrator to reach
the same gain as the proportional gain.
Select On [1] to connect the overmodulation function for the output voltage, to obtain an output
voltage up to 15% greater than the mains voltage.
Select Off [0] for no overmodulation of the out-
put voltage, in order to avoid torque ripple on the
motor shaft. This feature may be useful for applications such as grinding machines.
14-1* Mains On/Off
Parameters for configuring mains failure monitoring and handling.
• Select Trip [0] to trip the frequency converter;
• Select Warning [1] to issue a warning; or
• Select Disabled [2] for no action.
Operation under severe main imbalance conditions reduces the lifetime of the motor. Conditions are considered severe if the motor is operated continuously near nominal load.
14-2* Trip Reset
Parameters for configuring auto reset handling,
special trip handling and control card self test or
initialisation.
14-20 Reset Mode
Automatic reset x 10 .............................................[10]
Function:
Select the reset function after tripping. Once
reset, the frequency converter can be restarted.
Select Manual reset [0], to perform a reset via
[RESET] or via the digital inputs.
Select Automatic reset x 1.x20 [1]-[12] to perform
between one and twenty automatic resets after
tripping.
7-03 Speed PID Integral Time
Compressor dependent, factory set : read only
7-04 Speed PID Differentiation Time
Compressor dependent, factory set : read only
7-05 Speed PID Diff Gain Limit
Compressor dependent, factory set : read only
7-2* Process Ctrl. Feedb.
Select the feedback sources for the Process
PID Control, and how this feedback should be
handled.
7-20 Process CL Feedback 1 Resource
No function ................................................................. [0]
Analog input 53 ........................................................ [1]
Frequency input 29 (FC 302 only) ...................... [3]
Frequency input 33 ..................................................[4]
For process loop with current input, 54 switch has
to be positionned on I (current).
7-30 Process PID Normal/ Inverse Control
Option:
Normal .......................................................................... [0]
20 | AN000086420674en-000201
7-35 Process PID Differentiation Time
Range:
0.00 - 10.00 s ......................................................... *0.00s
Function:
Enter the PID differentiation time. The differentiator does not react to a constant error, but provides a gain only when the error changes. The
shorter the PID differentiation time, the stronger
the gain from the differentiator.
Note: This PID parameters are confortable to start
any system, but depending on its design they
have to be adjusted to follow the inertia and all
responses of the the real refrigeration machine.
Parameters: Special Functions
Parameter group for configuring special frequen-
NB: If the specified number of AUTOMATIC RESETs is reached within 10 minutes, the frequency
converter enters Manual reset [0] mode. After the
Manual reset is performed, the setting of par. 1420 reverts to the original selection. If the number
of AUTOMATIC RESETs is not reached within 10
minutes, or when a Manual reset is performed, the
internal AUTOMATIC RESET counter returns to zero.
The motor may start without warning.
14-21 Automatic Restart Time
Range:
0 - 600 s .....................................................................*30s
Function:
Enter the time interval from trip to start of the
automatic reset function. This parameter is active
when par. 14-20 is set to Automatic reset.
Use this parameter to specify normal operation; to
perform tests; or to initialise all parameters except par.
15-03, 15-04 and 15-05. This function is active only
when the power is cycled to the frequency converter.
Select Normal operation [0] for normal operation
of the frequency converter with the motor in the
selected application.
Select Control card test [1] to test the analog and digital
inputs and outputs and the +10 V control voltage. The
test requires a test connector with internal connections.
Use the following procedure for the control card test:
1. Select Control card test [1].
2. Disconnect the mains supply and wait for
the light in the display to go out.
3. Set switches S201 (A53) and S202 (A54) = ON. / I.
4. Insert the test plug (see below).
5. Connect to mains supply.
6. Carry out various tests.
7. The results are displayed on the LCP and the
frequency converter moves into an infinite loop.
8. Par. 14-22 is automatically set to Normal
operation. Carry out a power cycle to start up in
Normal operation after a control card test.
If the test is OK:
LCP read-out: Control Card OK. Disconnect the
mains supply and remove the test plug. The
green LED on the Control Card will light up.
If the test fails:
LCP read-out: Control Card I/O failure.
Replace the frequency converter or Control card.
The red LED on the Control Card is turned on.
Test plugs (connect the following terminals to
each other): 18 - 27 - 32; 19 - 29 - 33; 42 - 53 - 54
Select Initialization [2] to reset all parameter values to default settings, except for par. 15-03, 15-
04, and 15-05. The frequency converter will reset
during the next power-up.
Par. 14-22 will also revert to the default setting
Normal operation [0].
14-25 Trip Delay at Torque Limit
Option:
Off
14-26 Trip Delay at Inverter Fault
Option:
0 - 30 s .......................................................................... * 2s
On 50% .......................................................................... [1]
On 75% .......................................................................... [2]
On 100% ....................................................................... [3]
Function:
Select the minimum speed of the internal fan.
Select Auto [0] to run the fan only when the internal
temperature of the frequency converter is in the
range 35 °C . approx. 55°C. The fan will run at low
speed at 35C, and at full speed at approx. 55°C.
Parameters: Smart Logic Control
SLC (Smart Logic Controler is not active by fac-
tory setting for “Open Loop” system conrol. For
“Process Loop” factory setting” have been done in
order to manage:
- Pump-down function (by mean of suction
pressure sensor on input 54)
Cut-in pressure is set at 3.000 bar in parameter
13-12.0 (Comparator value)
Cut-out pressure is set 1.000 bar in parameter 13-
12.1 (Comparator value)
- Anti-short cycle by adjusting minimum duration between two starts set at 5 minutes.
These 5 minutes are set in parameter 13-20.0 (SL
Controller timer).
- Oil return management by having a minimum
On-Time at each start-up. Default setting is 0
(zero) seconds by security. This parameter has to
be adjusted in regards to each system, recommandation is about 30 seconds.
Setting is done on parameter 13-20.1 (SL Controller Timer)
The complete description of these parameter values and operand is done on the previous table”
CD302 main parameters for VTZ Compressors”
Smart Logic Control (SLC) is essentially a sequence
of user defined actions (see par. 13-52 [x]) executed by the SLC when the associated user defined
event (see par. 13-51 [x]) is evaluated as TRUE by
the SLC. Events and actions are each numbered
and linked together in pairs. This means that when
event [0] is fulfilled (attains the value TRUE), action
[0] is executed. After this, the conditions of event
[1] will be evaluated and if evaluated TRUE, action
[1] will be executed and so on. Only one event will
be evaluated at any time. If an event is evaluated
as FALSE, nothing happens (in the SLC) during the
current scan interval and no other events will be
evaluated. This means that when the SLC starts, it
evaluates event [0] (and only event [0]) each scan
interval. Only when event [0] is evaluated TRUE,
will the SLC execute action [0] and start evaluating
event [1]. It is possible to programme from 1 to 20
events and actions. When the last event / action
has been executed, the sequence starts over again
from event [0] / action [0].
Starting and stopping the SLC:
Starting and stopping the SLC can be done by
selecting .On [1]. or .Off [0]. in par. 13-00. The SLC
always starts in state 0 (where it evaluates event
[0]). The SLC starts when the Start Event (defined
in par. 13-01 Start Event) is evaluated
as TRUE (provided that On [1] is selected in par.
13-00). The SLC stops when the Stop Event and
reset the Smart Logic Control.
On ................................................................................... [1]
Function:
Select On [1] to enable the Smart Logic Control to
start when a start command is present, e.g. via a
digital input.
Select Off [0] to disable the Smart Logic Control.
Parameter Nº Par. DescriptionDefaultAs required change to Comment
00-01LanguageEnglishSet to the language of your choice
01-13Compressor SelectionDefault package modelOnly needed in the case of using over/undersized drive or
03-13Reference sitelinked to Hand (local) /
03-15Reference resource 1Input 53Leave as Input 53 or set
05-10Terminal 18StartStarting and stopping is controlled by a switch connected
05-12Terminal 27Coast inverseStop function (coast inverse) linked to safety line of the
06-10
06-11Terminal 53 High Voltage 10Maximum value in Volts for the reference signal. Only rele-
Terminal 53 Low Voltage 0Minimum value in Volts for the reference signal. Only rele-
Auto (remote)
Select Local or RemoteFrom where the operator will control the Frequency
to «No function»
R134a refrigerant
Converter. To use a local reference adjusted locally on the
Drive select «local». To apply an external reference select
«Remote». To use SLC (Smart Logic Control) it is always
needed to push «Auto On».
If set point is modified via external reference: Leave as
Input 53. If set point is fixed and set locally in Drive: Set to
«No function»
to terminal 18.
system (HP, LP switches,…)
vant if external reference is used (input 53 selected in 3-15)
vant if external reference is used (input 53 selected in 3-15)
5-40Relay functionNo Function2 relays available. Can be used to deliver an external signal
14-20Reset modeAutomatic x 10If the specified number of AUTOMATIC RESET’s is reached
14-21Reset time30 Sec.Interval between trip and automatic reset Par. [14-20]
for [Alarm] or other abnormal values
within 30 secondes, the frequency converter enters Manual reset
Allows the drive to receive a feedback from the refri-
01-00Configuration Mode
Speed Open
Loop
Process
geration system, typically pressure or temperature.
In the following it is assumed pressure feedback is
used.Hence, the input frequency to the compressor
can be adjusted according to de cooling demand.
03-01Reference / Feedback UnitrpmBar or psi
03-02Min. Reference2100 rpm-1 [Bar] (-100 if SLC is used)Sets the minimum range for the pressure transmitter
03-03Max. Reference5400 rpm12 [Bar] (100 if SLC is used)
03-10Preset reference0Not necessary to change
03-13Reference site
03-15Reference resource 1Input 53
06-10Terminal 53 Low Voltage0No change
06-11Terminal 53 High Voltage10No change
06-14
06-15Terminal 53 High ref / Feed. value 5400E.g. 5 [Bar]
06-20Terminal 54 Low Voltage1V
06-21Terminal 54 High Voltage5V
06-22
06-23
06-24Terminal 54 Low ref / Feedb. value -1
06-25
07-20
07-33Process PID Gain2According to system
07-34Process PID Integration time (ms) 9000 msAccording to system
Terminal 53 Low Reference /
Feedb. value
Terminal 54 Low Current (only
visible if switch set to I)
Terminal 54 High Current (only
visible if switch set to I)
Terminal 54 High ref / Feedb.
value
Process CL Feedback Input
resource
linked to Hand
(local) / Auto
(remote)
2100E.g. 1 [Bar]
4
20
9
Analog Input 54
Select Local or Remote
Leave as Input 53 or set to
«No function»
Minimum value in V for the
pressure transmitter’s range
Maximum value in V for the
pressure transmitter’s range
Minimum value in mA for
the pressure transmitter’s
range
Maximum value in mA for
the pressure transmitter’s
range
Value according to transmitter
Value according to transmitter
If input 54 is used for transmitter no change is needed
The feedback (suction pressure) can be displayed on
the LCP in its appropriate unit.
Sets the maximum range for the pressure transmitter
Value will be added to the speed reference or to the
set point for the PID control (closed loop)
From where the operator will control the Frequency
Converter. To use a local reference adjusted locally
on the Drive select «local». To apply an external reference select «Remote». To use SLC it is always needed to push «Auto On»
If PID set point is modified via external reference:
Leave as Input 53. If set point is fixed and set locally
in Drive: Set to «No function»
Minimum value in Volts for the reference signal. Only
relevant if external reference is used (input 53 selected in 3-15)
Maximum value in Volts for the reference signal.
Only relevant if external reference is used (input 53
selected in 3-15)
Only relevant if external reference is used (input 53
selected in 3-15)
Only relevant if external reference is used (input 53
selected in 3-15
Depends on output from the feedback device. Normally no changes are needed
Depends on output from the feedback device. Normally no changes are needed
Depends on output from the feedback device. Normally no changes are needed
Depends on output from the feedback device. Normally no changes are needed
Min value for range in Bar of pressure transmitter
Min value for range in Bar of pressure transmitter
Selects which input signal is used for PID-Closed
loop control
Proportional gain of PID. Default values suitable for
most systems for suction pressure control
Integral time of PID in ms. Default valus suitable for
most systems for suction pressure control
SLC
13-00Smart Logic Controller On/OffOff
13-12.0
13-12.1
13-20.0Timer 0 (Start-to-Start timer)5 min
13-20.1Timer 1 (Minimum Run-time)0 min
* SLC: Smart Logic Controller
Pressostat + Anti-short cycling
function
Comparator 0 (=cut-in pressure
value)
Comparator 1 (=cut-out pressure
value)
Optional
feature
3 BarSet desired start pressurePressostat function
Compressor specific parameters for code G R404A/R407C
CD 302
4kW
Param Designation
Torque1-04Read
Compressor Selection1-13r/w
Motor Power (kW)1-20Read3,594,957,811,661621,323,56
Motor Voltage (V )1-22Read414V414V414V414V414V414V414V
Current (A)1-24Read7,35121625,130,540,845,9
RPM1-25Read5290529052905290529052905290
Rs (Ohm)1-30Read1,6841,0390,6850,2940,3370,2360,186
Rrot (Ohm)1-31Read1,4771,0290,6560,4100,4560,3090,278
stat leak (Ohm)1-33Read4,013,311,080,5800,60,390,36
Rot leak (Ohm)1-34Read1,5201,2501,0800,5800,60,390,36
X main (Ohm)1-35Read107,7050,0428,717,19019,6111,515,23
Iron Loss Resistance (Rfe)1-36Read50441090501,3320,9143,700271,600283,400
Min current at low speed1-66r/w125%125%100%100%100%100%100%
Inertia Mini1-68Read0,00110,00140,00280,00390,00660,00830,00987
Inertia Maxi1-69Read0,00330,00680,0090,0120,020,0250,03
Starting delay1-71Read0,50,50,50,5000
Starting speed1-74Read90 RPM90 RPM-90 RPM-90 RPM90 RPM90 RPM90 RPM
Speed limit for stop function1-81Read1800180015001500150015001500
Min reference 3-02r/w2100210018001800180018001800
Max reference3-03r/w5400540054005100540054005100
Ramp down time running (sec)3-42r/w0,30,30,30,3111
Starting Ramp Up Time3-82Read0,540,540,540,541,261,261,26
Motor speed low limit (rpm)4-11Read2100210018001800180018001800
Motor speed low limit (Hz)4-12Read34,234,229,229,229,229,229,2
Motor speed high limit (rpm)4-13Read5400540054005100540054005100
Motor speed high limit (Hz)4-14Read90,890,890,885,890,890,885,8
Torque lim motor running (%)4-16Read133%190%160%160%160%160%160%
Current Ilimit running (%)4-18r/w110%108%100%110%110%110%110%
Maximum output frequency (Hz)4-19Read95959590959590
Warning Current High (A)4-51r/was p1-24as p1-24as p1-24as p1-24as p1-24as p1-24as p1-24
Warning speed low (rpm)4-52r/was p4-11as p4-11as p4-11as p4-11as p4-11as p4-11as p4-11
Warning speed High (rpm)4-53r/was p4-13as p4-13as p4-13as p4-13as p4-13as p4-13as p4-13
Compressor specific parameters for code J R404A/R407C
CD 302 3.7kWCD 302 5,5kWCD 302 7,5kWCD 302 11kW
Param Designation
Torque1-04ReadHigh TorqueHigh TorqueHigh TorqueNormal Torque
Compressor Selection1-13r/wVTZ038-R404A/407C VTZ054-R404A/407C VTZ086-R404A/407C VTZ121-R404A/407C
Motor Power (kW)1-20Read3,5957,812,5
Motor Voltage (V )1-22Read205 V205 V205 V205 V
Current (A)1-24Read13,52032,550
RPM1-25Read5290529052005200
Rs (Ohm)1-30Read0,310,2150,1580,095
Rrot (Ohm)1-31Read0,4340,3430,1500,088
stat leak (Ohm)1-33Read0,660,480,2550,162
Rot leak (Ohm)1-34Read0,3310,2400,2550,162
X main (Ohm)1-35Read19,9717,4846,6657,775
Iron Loss Resistance (Rfe)1-36Read504,4110,006065,7
Min current at low speed1-66r/w110%100%100%100%
Inertia Mini1-68Read0,00110,00140,00280,0039
Inertia Maxi1-69Read0,00330,00680,0090,012
Starting delay1-71Read0,50,50,50,5
Starting speed1-74Read90 RPM90 RPM-90 RPM-90 RPM
Speed limit for stop function1-81Read1800180015001500
Min reference 3-02r/w2100210018001800
Max reference3-03r/w5400540054005100
Ramp down time running (sec)3-42r/w0,30,30,30,3
Starting Ramp Up Time3-82Read0,540,540,540,54
Motor speed low limit (rpm)4-11Read2100210018001800
Motor speed low limit (Hz)4-12Read34,234,229,229,2
Motor speed high limit (rpm)4-13Read5400540054005100
Motor speed high limit (Hz)4-14Read90,890,890,885,8
Torque lim motor running (%)4-16Read133%190%160%160%
Current Ilimit running (%)4-18r/w110%110%110%110%
Maximum output frequency (Hz)4-19Read95959590
Warning Current High (A)4-51r/was p1-24as p1-24as p1-24as p1-24
Warning speed low (rpm)4-52r/was p4-11as p4-11as p4-11as p4-11
Warning speed High (rpm)4-53r/was p4-13as p4-13as p4-13as p4-13
Terminal 53 Low ref/Feedb.value6-14r/was p3-02 (not linked) as p3-02 (not linked) as p3-02 (not linked) as p3-02 (not linked)
Terminal 53 High ref/Feedb.value6-15r/was p3-03 (not linked) as p3-03 (not linked) as p3-03 (not linked) as p3-03 (not linked)
Motor Power (kW)1-20Read3,594,957,811,661621,323,56
Motor Voltage (V )1-22Read414V414V414V414V414V414V414V
Current (A)1-24Read7,35121625,130,540,845,9
RPM1-25Read5290529052905290529052905290
Rs (Ohm)1-30Read1,6841,0390,6850,2940,3370,2360,186
Rrot (Ohm)1-31Read1,4771,0290,6560,4100,4560,3090,278
stat leak (Ohm)1-33Read4,013,311,080,5800,60,390,36
Rot leak (Ohm)1-34Read1,5201,2501,0800,5800,60,390,36
X main (Ohm)1-35Read107,7050,0428,717,19019,6111,515,23
Iron Loss Resistance (Rfe)1-36Read50441090501,3320,9143,700271,600283,400
Min current at low speed1-66r/w90%90%90%90%90%90%90%
Inertia Mini1-68Read0,00110,00140,00280,00390,00660,00830,00987
Inertia Maxi1-69Read0,00330,00680,0090,0120,020,0250,03
Starting delay1-71Read0,50,50,50,5000
Starting speed1-74Read90 RPM90 RPM-90 RPM-90 RPM90 RPM90 RPM90 RPM
Speed limit for stop function1-81Read1800180015001500150015001500
Min reference 3-02r/w2100210018001800180018001800
Max reference3-03r/w5400540054005100540054005100
Ramp down time running (sec)3-42r/w0,30,30,30,3111
Starting Ramp Up Time3-82Read0,540,540,540,541,261,261,26
Motor speed low limit (rpm)4-11Read2100210018001800180018001800
Motor speed low limit (Hz)4-12Read34,234,229,229,229,229,229,2
Motor speed high limit (rpm)4-13Read5400540054005100540054005100
Motor speed high limit (Hz)4-14Read90,890,890,885,890,890,885,8
Torque lim motor running (%)4-16Read133%190%160%160%160%160%160%
Current Ilimit running (%)4-18r/w82%73%80%80%80%85%110%
Maximum output frequency (Hz)4-19Read95959590959590
Warning Current High (A)4-51r/was p1-24as p1-24as p1-24as p1-24as p1-24as p1-24as p1-24
Warning speed low (rpm)4-52r/was p4-11as p4-11as p4-11as p4-11as p4-11as p4-11as p4-11
Warning speed High (rpm)4-53r/was p4-13as p4-13as p4-13as p4-13as p4-13as p4-13as p4-13
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