Danfoss VLZ065 Instruction Manual

Danfoss scroll compressors
VLZ065 version B
Single
R404A/R448A/R449A CDS drive
Application guidelines
http://cc.danfoss.com

Content
General Information ................................ 4
PRODUCT INFORMATION ........................ 5
Features..................................................... 5
How do IDVs work?................................................... 5
Compressor model designation ............. 6
Nomenclature ............................................................ 6
Technical specications........................... 7
Dimensions ............................................. 10
VLZ065G ..................................................................... 10
Electrical data, connections and wiring13
Supply voltage.........................................................13
Phase sequence and reverse rotation
protection.................................................................. 15
IP rating....................................................................... 15
Motor protection.....................................................15
Approval and certicates ...................... 16
Low voltage directive 2014/35/EU....................16
Internal free volume...............................................16
SYSTEM DESIGN...................................... 17
Drive installation.................................... 17
Direct and indirect exposure of drive to water
17
Condensation........................................................... 17
Dust Exposure.......................................................... 17
Mechanical Mounting ........................................... 17
Ambient temperature ...........................................18
EMC installation ..................................... 19
EMC ..............................................................................19
EMC best practices ................................................. 19
Unit Architecture.................................... 20
Piping Design ......................................... 21
General requirements...........................................21
Design compressor mounting .............. 22
General requirements...........................................22
Single requirements...............................................22
Manage oil in the circuit ........................ 23
Requirement.............................................................23
System evaluation ..................................................23
Test, criteria and solutions...................................23
Manage sound and vibration................ 24
Compressor sound radiation..............................24
Mechanical vibrations...........................................25
Gas pulsation............................................................25
Manage superheat ................................. 26
Requirement.............................................................26
System evaluation ..................................................26
Test, criteria and solutions...................................27
Manage o cycle migration................... 28
Requirement.............................................................28
System evaluation .................................................28
Manage operating envelope................. 29
Requirement.............................................................29
System evaluation ..................................................30
Manage speed limit................................ 34
Speed limit requirement......................................34
Start/Stop/Ramp setting......................................34
Control logic ........................................... 35
Safety control logic requirements....................35
Short cycle protection .........................................35
Pump-down logic recommendations.............36
Oil boost.....................................................................36
CDS Drive oil boost function ..............................36
Oil boost controlled by optical oil level sensor
37
Reduce moisture in the system.............40
Requirements...........................................................40
Solutions ....................................................................40
INTEGRATION INTO SYSTEMS ............... 41
Assembly line procedure....................... 41
Compressor storage............................................... 41
Compressor holding charge ............................... 41
Handling .................................................................... 41
Piping assembly.......................................................42
System pressure test and leak detection .......42
Vacuum evacuation and moisture removal .43
Refrigerant charging..............................................43
Dielectric strength and insulation resistance
tests..............................................................................43
Commissioning.......................................44
Preliminary check....................................................44
Initial start-up...........................................................44
System monitoring.................................................44
Oil level checking and top-up............................44
Troubleshooting..................................... 45
Dismantle and disposal ......................... 47
ORDERING INFORMATION..................... 48
Packaging ...............................................48
Ordering codes....................................... 49
Accessories.............................................. 50
3AB444226142054en-000101

General Information
Danfoss scroll compressors are designed and
manufactured according to the state of the
art and to valid European and US regulations.
Particular emphasis has been placed on
safety and reliability. Related instructions are
highlighted with the following icons:
This icon indicates instructions to avoid
safety risk.
This icon indicates instructions to avoid
reliability risk.
The purpose of this guideline is to help
customers qualify compressors in the unit.
You are strongly advised to follow these
instructions. For any deviation from the
guidelines, please contact Danfoss Technical
Support. In any case, Danfoss accepts no
liability as a result of the improper integration
of the compressor into the unit by the system
manufacturer.
R
4AB444226142054en-000101

Features
Danfoss Intermediate Discharge Valves (IDVs)
are located close to the discharge side of the
compressor. They reduce excessive compression
of refrigerant under part-load conditions while
maintaining the same cooling capacity. The IDVs
open when discharge pressure falls below the
built-in optimization point. They adapt the eort
of the motor to the varying load and pressure
conditions in the system, thus reducing the eort
of the motor and its electrical consumption
and improving the system’s seasonal energy
eciency.
How do IDVs work?
Intermediate discharge
valves for better eciency
at low pressure-ratio Optimized scrolls for
better part load eciency
New distributed IPM
motor lead to higher
power factor
High speed oil circulation
minimized by an oil return
tube
Linear control oil pump
POE 46 lubricant ensures better
lubrication and eciency
New designed oil cup to
minimize oil stirring loss under
high liquid level
EMC (Electro-Magnetic
Compatibility) bracket
provided allows for
grounding termination
of shielded wire-harness,
which reduces EMC
emissions between drive
and compressor
5AB444226142054en-000101

Compressor model designation
Nomenclature
Compressor nomenclature
Frequency converter
nomenclature
H2E20T4P11K803CDS
Dedicated compressor
drive for VLZ scroll
Serie 803
Output power
in kW
Main supply voltage
T4: 380-480V/3 ph/50-60 Hz
RFI class
Enclosure protection
IP rating
Single version
Unied version
Oil sight glass
Threaded
Threaded Threaded
None
Oil level switch
9BENGT065LZV
Variable speed
Family
Scroll (refrigeration)
Lubricant
POE46(RL46HB) lubricant
R404A/R448A/R449A
refrigerant
Swept volume
in cm³/rev
Design pressure ratio
T: Design optimized for
refrigeration
Equipment version
9: brazed connections, single version
D: brazed connections, unied version
With CDS drive
Fittings/connections
Brazed connections
compatible terminal box
Motor protection type
N: no internal motor protection
(protection by drive)
Motor voltage code *
G: 380-480V/3~/50 & 60Hz
* main supply voltage to frequency
converter
6AB444226142054en-000101

Technical specications
To have the optimum compressor selection,
select a compressor size which achieves the
peak load system cooling capacity demand at its
maximum speed.
Detailed performances can be found in
datasheets and in selection programs.
Compressor size
Dierent frequency converter variants are
available according to:
1. Mains supply voltage
2. IP class (CDS803 drives are available in IP20
housings)
3. RFI (Radio Frequency Interference) class H2.
4. Printed Circuit Board (PCB) coated or not
coated.
When the compressor size and mains voltage
have been dened in the above selection criteria,
the code number tables from the“Ordering
information and packaging”section provides the
appropriate frequency converter sizes and up
to four corresponding code numbers for each
compressor model.
Note this compressor is equipped with
a six-pole electrical motor so the applied
frequency from the inverter will be 90Hz for
1800 rpm up to 330 Hz for 6600 rpm.
Please refer to the table below
Frequency converter
variants
Compressor and
frequency converter
combinations
min max
Compressor speed rps 30 110
rpm 1800 6600
Drive output frequency Hz 90 330
7AB444226142054en-000101

Technical specications
Compressor
specications
Frequency converter
specications
Compressor
model
Swept volume
Displacement
Oil charge Net weight
1800 rpm 3000 rpm 3600 rpm 6600 rpm
(cm³/rev) (cu.in/rev) (m³/h) (cu.ft/h) (m³/h) (cu.ft/h) (m³/h) (cu.ft/h) (m³/h) (cu.ft/h) (dm3)(oz) (kg) (lbs)
VLZ065 65.1 4.0 7.0 249 11.7 413 14.1 498 25.8 911 1.57 53 35 77
Mains supply voltage T4: 380 - 480 V ±10% (3-phase)
Supply frequency 50 / 60 Hz
Output voltage 0 - 100 % of supply voltage
Inputs 4 digital (0-24V), 2 analog (0/±10V or 4-20mA, scalable)
Programmable outputs 2 analog (0/4-20mA) or 2 digital (0-24V)
Protection functions Over-current protection, low / high current handling
Compressor functions Motor protection, compressor ramp up/down control
POE
R448A & R449A
R404A
The POE oil RL46HB(215PZ) is an ISO VG 46
synthetic polyol ester (POE) lubricant formulated
specically for use in refrigeration and air
conditioning compressors using HFC refrigerants.
This product provides eective wear protection
for steel and aluminum surfaces for increased
system life and improved eciency and is
suitable for both initial ll and service ll. The
combination of low temperature characteristics
and unparalleled chemical and thermal stability
enable the use of RL46HB over a wide operating
temperature range.
R448A and R449A are two HFO-based
refrigerants with similar properties. Both have a
GWP below 1500 and comply with the EU F-gas
regulation.
They can be used as alternatives to R404A
refrigerants in MBP application.
R448A&R449A have zero ozone depletion
potential (ODP = 0). R448A&449A are especially
suitable for low evaporating temperature
applications but they can also be applied to
medium evaporating temperature applications.
R448A &449A are mixtures and have big
temperature glide, and therefore must be
charged in their gas phase.
R404A is an HFC refrigerant. R404A has zero
ozone depletion potential (ODP = 0). R404A is
also suitable for low evaporating temperature
applications but it can also be applied to medium
evaporating temperature applications. R404A is a
mixture and has a very
small temperature glide, and therefore must be
charged in its liquid phase, but for most other
aspects this small glide can be neglected.
Because of the small glide, R404A is often called a
near-azeotropic mixture.
Designation Composition ODP GWP Safety
group Boiling temp °C Temp glide °C Critical temp °C
Critical
pressure
bar
Cond temp
@ 26babs
R404A 52% R143a - 44% R125 - 4% R134a 0 3943 A1 -45.5 0.8 73.0 36.9 55.8
R448A 21% R134a - 20% R1234yf
26% R125 - 26% R32 - 7% R1234ze 01273 A1 -46.1 6.1 83.7 48.0 58.1
R449A 24.3% R32 - 24.7% R125
25.3% R1234yf - 25.7% R134a 01282 A1 -45.7 6.0 83.9 44.5 58.2
8AB444226142054en-000101

Technical specications
OIL level sensor A TEKLAB LC-PR optical-electrical level sensor
is xed on the inverter compressor. The oil level
sensor prism is xed on the compressor, the
electrical part is ordered by accessory kit. The
oil level sensor monitors the compressor oil
level and sends oil level signal to relay: It already
has relay internally. A 5±2 seconds delay is
recommended to mitigate oil level uctuation
and avoid false alarms.
- Lack of oil: Relay between 2 and 4 will be
opened internally, output is open. LED in sensor
is red.
- Enough oil: Relay between 2 and 4 will be
closed internally, output is closed. LED in sensor
is green.
For customers who needs UL certicates, please
order 24V AC/DC sensor.
Oil level sensor is a special component which
assembles on variable speed compressor. The oil
level sensor prism is xed on the compressor, the
electrical part and the pre-wired connectors are
ordered by accessory kit.
VLZ065
L / 24V
N / 0V
14
23
R
LC-PR S
CC-000209 S - Sensor
R - External Load / Relay
9AB444226142054en-000101

Dimensions
Version Compressor model D H H1 H2 L1 L2 Outline drawing number
(mm) (inch) (mm)(inch) (mm) (inch) (mm) (inch) (mm) (inch) (mm) (inch)
Single VLZ065 183.5 7. 22 436 17.17 403 15.87 261 10.28 190.5 7.5 190.5 7.5 8590007
Unied VLZ065 183.5 7.22 436 17.17 403 15.87 261 10.28 190.5 7.5 190.5 7.5 8590013
VLZ065G
H
H1
ΦD
H2
L2
L1
H
H1
ΦD
H2
L2
L1
Single version Unied version
EMC bracket to terminations
of shielded wire
Earth grounding
Mounting GrommetTerminal box
Ø 41
29.5
Recommended torque for
mounting bolts: 11 Nm (±1 Nm)
Ø11
10 AB444226142054en-000101

Dimensions
Connection Details VLZ065 single version
Suction connection Brazed 7/8"
Discharge connection Brazed 3/4"
Oil sight glass Threaded (1"1/8 – 18 UNF)
Oil equalization connection -
Shrader Male 1/4" Flare incorporating a Schrader valve
1) VLZ compressors single versions come
equipped with a threaded oil sight glass with
1"1/8 – 18 UNEF connection. It can be used for
a visual check of oil amount and condition.
2) Schrader: The oil ll connection and
gauge port is a 1/4" male are connector
incorporating a Schrader valve.
Compressor models Brazed connection size
Rotolock adaptor set
(adaptor, gasket, sleeve, nut) Rotolock adaptor (adaptor only)
Rotolock Solder sleeve ODF Code Number Code Number
VLZ065 Suction 7/8" 1-1/4" 7/8" 120Z0128 120Z0367
Discharge 3/4" 1-1/4" 3/4" 120Z0366
    
VLZ compressors are all delivered with suction
and discharge brazed connections only. They are
copper-plated steel connections.
Rotolock adaptors are available, refer to the
information above.
11AB444226142054en-000101

Dimensions
CDS803 Frequency
converter L
H
WMin 100
Clearance above for cooling
Min 100
Clearance above for cooling
Danfoss
Di-000008
Frequency converter dimensions depend
on supply voltage, IP rating and power. The
table below gives an overview of the overall
dimensions and drive enclosures. Details for each
drive enclosure are on the following pages.
Enclosure Height Width Depth Mounting hole Max. Weight
Frame IP Class A A1) a B b C d e f
(mm) (inch) (mm) (inch) (mm) (inch) (mm) (inch) (mm) (inch) (mm) (inch) (mm) (inch) (mm) (inch) (mm) (inch) kg lb
H5 IP20 334 13.1 402 15.8 314 12.4 150 5.9 120 4.7 255 10 12.6 0.5 70.28 8.5 0.33 9.5 20.9
A1) Including decoupling plate.
The dimensions are only for the physical units, but when installing in an application it is necessary to add space for free air passage both above and below the units.
The amount of space for free air passage is listed in “frequency converter dimensions - Clearance above/below (mm/inch)”.
CC-000089
CC-000189
99 99
Drive supply voltage Drive power
kW
Compressor
voltage code
Compressor
model
IP20
Drive
en closure
Overall drive size
[H x W x L]
mm
(inch)
Clearance above/
below
mm
(inch)
Bracket supplied
(mm)
T4: 380-480/3/50-60 11 G VLZ065 H5 402 × 150 × 255
(15.8 × 5.9 × 10)
100
(4)
1pcs, Φ2-11
1pcs, Φ3-18
1pcs, Φ6-23
Drive outline dimensions Decoupling plate
12 AB444226142054en-000101

Electrical data, connections and wiring
Compressor electrical
specications Compressor rated voltage (V) Model RW() at 20°C line to line Max Operating Current (A)
400 VLZ065-G 0.177±7% 19
RW: Winding resistance per winding, measured at motor terminals
Because VLZ compressors are powered by a
frequency converter, the mains frequency, 50 or
60 Hz, is no longer an issue. Only the mains
voltage is to be taken into account. Never
connect the VLZ compressor directly to the mains
power supply in case of motor burnt.
Supply voltage Voltage code Mains voltage range of drive
G 380-480V / 3ph / 50Hz & 60Hz (±10%)
MOC (Max Operating
Current)
Wiring connections
Max. operating current is the max. continuous
current output from drive to compressor within
operating map.
MOC is tested at max. load condition with
nominal voltage. MOC is printed on the
nameplate, it can be used to select cable and
contractor for customer by adding some safety
coecient.
Electrical power is connected to the compressor
terminals by Ø 4.8mm (3/16") screws. The
maximum tightening torque is 3Nm. Use a 1/4"
ring terminal on the power leads.
Terminal cover mounting The terminal cover and gasket should be installed
prior to operation of the compressor. The terminal
cover has two outside tabs, 180 degrees apart,
that engage the terminal fence. When installing
the cover, check that it is not pinching the lead
wires.
Terminal cover removal
EMC bracket to terminations
of shielded wire
Earth grounding
push
push
push
13AB444226142054en-000101

Electrical data, connections and wiring
Fuses Danfoss recommends using the fuses listed
below to protect service personnel and property
in case of component break-down in the
frequency converter.
For circuit breakers, Moeller types have been
tested and are recommended.
Voltage range From network to frequency converter From frequency converter to compressor
Type mm² AWG Type mm² AWG
380 - 480 V CDS803-11kW 610 VLZ065 610
Note: The wire size in the guideline is the maximum wire size that connectors can accept but not the actual needed cable. The needed
cable size should be specied by the OEM depending on the unit design, ambient temperature, the wire material, current, etc...
Wire sizes Below table lists maximum wiring sizes for the motor compressor power supply cables.
from network
to drive
from drive to
to compressor
Circuit breaker
Power input
I
Model
Power
UL Compliant fuses Non -UL Recommended cir
cuit breaker
Bussmann Maximum
fuse IP20
[kW] Type RK5 Type RK1 Type J Type T Type G Moeller type
3 × 380-480 V VLZ065 11 FRS-R-80 KTS-R80 JKS-80 JJS-80 63 PKZM4-50
The CDS803 frequency converter generates by
design a compressor soft start with a default
initial ramp up refer to ‘Manage speed limit’.
Current inrush will not exceed the frequency
converter maximum current.
Basically seen from the mains, the inrush peak
reachs a level which is only a few percent more
than the rated nominal current.
Soft-start control
14 AB444226142054en-000101

Electrical data, connections and wiring
The compressor will only operate properly
in a single direction. If electrical connections
are done correctly between the drive and the
compressor terminals (compressor T1/T2/T3 and
drive terminals U, V & W matching), the drive will
provide correct phase supply to the compressor,
and reverse rotation will be not possible:
• CDS terminal U (96) to VLZ terminal T1
• CDS terminal V (97) to VLZ terminal T2
• CDS terminal W (98) to VLZ terminal T3
If compressor T1/T2/T3 and drive U, V & W
terminals are not matching, the compressor
can operate in a reverse rotation. This results in
excessive noise, no pressure dierential between
suction and discharge, and suction line warming
rather than immediate cooling. The compressor
can be rapidly damaged in these conditions.
If reverse rotation symptoms occur, shut the
compressor down and connect the phases to
their proper terminals.
Mains connection to the CDS frequency
converter order has no inuence on the output
phase sequence which is managed by the
frequency converter.
Phase sequence and
reverse rotation
protection
The compressor terminal box IP rating according to IEC529 is IP22.IP rating
Element Numerals or letters Meaning for the protection of equipment
First characteristic
numeral
0
1
2
3
4
5
6
Against ingress of solid foreign objects
(non protected)
≥ 50 mm diameter
≥ 12.6 mm diameter
≥ 2.5 mm diameter
≥ 1.0 mm diameter
dust protected
dust tight
Second
characteristic
numeral
0
1
2
3
4
5
6
7
8
Against ingress of water with harmful effects
(non protected
vertically dripping
dripping (15° tilted)
spaying
splashing
jetting
powerful jetting
temporary immersion
continuous immersion
VLZ scroll compressors are not equipped with
an internal motor protector. Motor protection
is provided by the variable speed drive. All
parameters are factory preset in order to
guaranty locked rotor or overload current
protection.
When a warning situation is reached in the
current control, the CDS frequency converter
will automatically reduce the compressor
speed in order to keep the motor current of the
compressor below the maximum allowed.
Motor protection
The maximum allowable voltage imbalance
between each phase is 3%. Voltage imbalance
causes high amperage over one or several
phases, which in turn leads to overheating and
possible drive damage.
Voltage imbalance
15AB444226142054en-000101

Approval and certicates
VLZ compressors comply with the following approvals and certicates.Approvals and
certicates
Low voltage directive
2014/35/EU
Internal free volume
CE
(European Directive) VLZ code G
EMC Class A Group 1
2014/30/EU VLZ compressor and drive package
Products Internal free volume at LP side without oil (lite/cu.inch)
VLZ065 4.7/287
Products VLZ065
Declaration of conformity ref.
Low voltage directive 2014/35/EU Contact Danfoss
16 AB444226142054en-000101

Direct and indirect
exposure of drive to water
Dust Exposure
Mechanical Mounting
Clearance
Condensation
Enclosure type H5
a [mm / inch] 100 / 3.94
b [mm / inch] 100 / 3.94
Drive installation
IP20 drives are intended for indoor or cabinet
mounting. Application example: drive tted in
a machine room, basement or in an electrical
cabinet together with other electric / electronic
components such as the unit controller or
contactors.
It is recommended to place drive at least 30cm
from ground to protect against oods.
Avoid Dust forms and deposits on the surface
of the drive and inside on circuit boards and the
electronic components. These deposits act as
insulation layers and hamper heat transfer to
the ambient air, reducing the cooling capacity.
The components become warmer. This causes
accelerated aging of the electronic components,
and the service life of the unit decreases. Dust
deposits on the heat sink in the back of the unit
also decrease the service life of the unit.
The drive cooling fans have small bearings into
which dust can penetrate and act as an abrasive.
This leads to bearing damage and fan failure.
Under the conditions described above, it is
advisable to clean the frequency converter
during periodic maintenance. Remove dust o
the heat sink and fans and clean the lter mats.
For optimal cooling conditions, mount the drive
on vertical position. Allow a free air passage
above and below the frequency converter.
See Table below:
Horizontal mounting is NOT the preferred
position, however if unavoidable, lay PCB
on the left side (270°) to avoid condensation
accumulation on the electronics.
Condensation must always be avoided. There is a
specic risk of condensation when the frequency
converter or some of its components are
colder than moist ambient air. In this situation,
the moisture in the air can condense on the
electronic components.
• Operating with the frequency converter
constantly connected to the mains can help
to reduce the risk of condensation. Install a
cabinet heater in situations where there is a
real possibility of condensation due to ambient
conditions.
• If the drive is IP 20, then evaluate and prevent
possibility of condensation above drive.
Example: condensation on metallic frame above
drive, piping… If unavoidable, solutions like
cabinet heater, a pace heater, top hat on the
drive, insulation in the electric panel can be a
solution.
• Water resulting of condensation must not
accumulate on the bottom of electric panel.
Provide a drain for condensed water to run out
if necessary.
• No other forced cooling then internal drive fan.
PCB temp
dew
point
a
b
17AB444226142054en-000101

Drive installation
Ambient temperature The maximum ambient temperature for the drive
is 52°C.
Make sure that the clearance limits described
above are respected.
The drive must be installed on a wall or on a back
plate to ensure proper cooling.
Do not place the drive under direct sunlight.
Insulation inside the electrical panel can reduce
impact of sun radiation.
Test at the unit at highest ambient maximum
load is recommended. Look for over temperature
drive alarm.
The drive could operate lower to -10C with
proper operation, such as inside the cabinet,
install the space heater. LCP operating
temperature is -10 ~ 50 °C.
Temperature during storage/transport : -30 to
+65/70 °C (-22 to +149/158 °F)
18 AB444226142054en-000101

EMC installation
EMC
EMC best practices
Frequency converter (and other electrical
devices) generate electronic or magnetic elds
that may interfere with their environment. The
electromagnetic compatibility (EMC) of these
eects depends on the power and the harmonic
characteristics of the devices.
The EMC product standard for frequency
converters denes 4 categories (C1, C2, C3, and
C4) with specied requirements for emission and
immunity. Below table states the denition of
the 4 categories and the equivalent classication
from EN 55011.
• Use screened (shielded) cables for motor,
control wiring and communication.
• Separate cables for input power, motor
wiring and control wiring. Failure to isolate
power, motor, control and communication
cables can result in unintended behavior or
reduced performance. Minimum 200 mm
(7.9 in) clearance between power, motor and
control cables is required.
• Ensure VFD proper grounding.
• Motor cables should be as short as possible
to reduce noise level and leakage currents.
• Use the decoupling plate to x and
terminate cables(Refer to EMC correct
installation of a frequency drive CDS803).
VLZ compressor with drive package achieve EMC Class A Group 1 emission and immunity requirements.
Category Denition Equivalent emission class in EN 55011
C1 Frequency converters installed in the rst environment (home and
oce) with a supply voltage less than 1000 V. Class B
C2
Frequency converters installed in the rst environment (home and
oce) with a supply voltage less than 1000 V, which are not plug-in and
not movable, and must be installed and commissioned by a profession-
al.
Class A Group 1
C3 Frequency converters installed in the second environment (industrial)
with a supply voltage lower than 1000 V. Class A Group 2
C4
Frequency converters installed in the second environment with a supply
voltage equal to or above 1000 V or rated current equal to or above 400
A or intended for use in complex systems.
No limit line. Make an EMC plan
19AB444226142054en-000101

The frequency converter is pre-set for speed
open loop control. This means that the speed set-
point is given by a 0-10V, where 0V corresponds
to the minimum compressor speed and 10V is
maximum compressor speed.
The unit controller must have full control of
the compressor operation and application
protections such as compressor envelope
control, oil return management and short cycling
protection.
Below is the Danfoss proposed system
conguration and wiring.
Unit Architecture
230V or
24V~
Opcal oil
levelsenso r
Crankcase
heater
230V acor
24Vacor 24V dc=
T1
T2
T3
PE
L1
L2
L3
PE
Fusesor
circuit
breaker
Digital
input
RS 485
Modbus
Analo g
output
Start/Stop
Ala rm
Reset (should set to "reset")
LP
DGT
Discharge
pressure
Sucon
pressure
Lo wpressure
switch
Dischargegas
thermostat
Un it co ntroller
0to10V DC
speedsignal
Drive Alarm Feedback
Digital
input
HP High pressure
switch
Digital
input
Digital
input
Analo g
input
Analo g
input
Digital
input
12 + 24V CC (80mA max.)
18 Digital Input
19 Digital Input
27 Digital Input/Output
29 Digital Input/Output
20 COM Digital Input
L1
L2
L3
PE
CM 01
NO 02
NC 03
CM 04
NO 05
NC 06
U
V
W
PE
3 Phase
Power input
50/60Hz
Motor output
High Pressure
Switch
Relays
Relay 1
Relay 2
CDS 803
42 Analog Output 0/4-20mA
45 Analog Output 0/4-20mA
50 + 10V Out (25mA max.)
53 Analog Input 1
54 Analog Input 2
55 COM Analog IN/OUT
61 COM RS485
68 P RS485
69 N RS-485
WD-00007
NOTE 1: Only relevant parameters or the ones dierent from factory defaults are shown.
NOTE 2: Oil boost, short cycle protection to be programmed in the unit controller
NOTE 3: Use an output contactor (CDS803)
20 AB444226142054en-000101