Page 1
www.coval.com
ADVANCED VACUUM SOLUTIONS
LEMCOM
US
3
Mini Vacuum Pumps Communicating via Industrial Field Bus
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LEMCOM
1st Mini Vacuum Pump on Industrial Fieldbus
General Points
The illustrations demonstrate the COVAL advantage: all necessary functions are inte-
grated into a complete and self-governing mini-module.
INTEGRATED FUNCTIONS:
➊
Pressure regulator 3.5 bar
➋
"Vacuum" solenoid valve
➌
3.5 bar optimized venturi
➍
Optimized silencer
➎
Vacuum non-return valve
➏
Vacuum sensor
➐
Integrated electronics: management of
"vacuum" functions and communication
➑
"Blow-off" solenoid valve
➒
Blow-off flow regulator
Industry-specific applications
Advantages
Compact Integration: The COVAL Technique
Easy Integration with Existing Industrial Network
vacuum
blow-off
P = 4.5 to 7 bar
exhaust
vacuum
pressure
Schematic representation
Remote
computer
Rout er &
firewa ll
PLC
Motors
Sensors
Encoders…
ETHERNET TCT/IP
INDUSTRIAL ETHERNET
ENTERPRISE
PLANT
PROCESS
supervision
diagnosis &
configuration
Easy implementation: Plug & Play, custom configuration for
every type of application.
Maximum automatic energy savings:
ASR: 40% savings for porous products.
ASC: 90% savings for airtight products.
Compactness: LEMCOM vacuum pumps are the most compact
on the market.
Short response times: Installed in close proximity to vacuum
cups.
Dust resistant: Non-clogging through-type silencer.
Safety: Product gripping is maintained even during power failure.
Supported buses: EtherNet/IP and PROFINET.
Wiring simplified: 2 cables are capable of managing 1 to 16
modules.
Settings and diagnosis via remote monitoring.
Nearly unlimited arrangements (stand-alone modules, island
assemblies or remote modules).
An essential innovation for intelligent vacuum gripping.
LEMCOM is the first vacuum pump which seamlessly integrates with
the field network without the use of gateways or other specific inter-
faces.
The LEMCOM "master" modules enable the continuity of a fieldbus
through their two integrated communication ports. Tested and certified
by ODVA (EtherNet/IP) and by PI (PROFINET), LEMCOM is connected
very easily to the PLC (EDS file, RSLogix 5000 Add-On Instructions,
GSDML file).
Based on a "master/secondary" structure where the "master" is a fully-
integrated pump, the LEMCOM design enables the supply and control
of 1 to 16 vacuum pumps while requiring only 2 connecting cables.
In a world where everything is connected, COVAL is innovating once more by unvei-
ling the LEMCOM series: the first vacuum pump on fieldbus.
The LEMCOM establishes a verified remote communication between the operator and
the vacuum pump, with two possible fieldbus choices, EtherNet/IP and PROFINET.
This allows the operator to receive real-time information and more importantly res-
pond at all times to configure, diagnose and maintain the operation.
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LEMCOM
85%
1.0 mm
1.2 mm
1.4 mm
60%
1.0 mm
1.2 mm
1.4 mm
LEMCOM 60
LEMCOM 90
90%
40%
6 8
0
2 4 75
LEMCOM
3.5 bar
3.5 bar
Air Saving Regulator 40%
Air Saving Control 90%
2 Vacuum Levels to Match Precise Application Needs
1st Mini Vacuum Pump on Industrial Fieldbus
Vacuum Levels and Energy-saving
VERSION 60 (Max. 60% vacuum)
To enable a high rate of vacuum flow
and compensate for leakage when
gripping porous materials.
VERSION 90 (Max. 85% vacuum)
To enable a high vacuum level and thus
increase the holding force for gripping
airtight materials.
max. vacuum
Nozzle Ø
1.02
1.59
2.47
max. vacuum
Nozzle Ø
1.34
2.54
3.25
Porous Materials, Rough Surfaces Airtight & Semi-Porous Materials
Cardboard Food Wood Paper Plastic Metal Glass Composites
Concrete/Stone
Combined "venturi regulator"
ASR: pressure regulator ➊
feeds venturi ➌ with 3.5 bar,
the optimized pressure for
operation.
No more unnecessary
consumption of compressed
air.
Combination of non-return
valve ➎ and advanced
electronics ➐ ensures ASC’s
automatic performance.
Once vacuum is
established, the pump no
longer consumes air to hold
the product.
(ASR): Air Saving Regulator
LEMCOM series vacuum pumps, which integrate an ASR "venturi
regulator" combination, maintain ideals that COVAL values greatly:
reducing both compressed air consumption and noise generation.
Regardless of pressure supplied by the compressed air network,
the integrated regulator feeds the venturi at 3.5 bar pressure,
optimal for its operation.
No more unnecessary energy consumption.
No external regulator required, thus eliminating the risk of
improper adjustment.
Compared to pressures found in most compressed air networks
(5-7 bar), the graph opposite demonstrates an achieved economy
of 40% on average.
SAVING
40%
on average
Traditional vacuum pumps
consumption (SCFM)
Network
pressure (bar)
Conventional
Compressed
Air Networks
1.4 mm
nozzle Ø
of energy savings on average.
of energy savings on average.
P = 4.5 to 7 bar
Suction flow rate (SCFM): Suction flow rate (SCFM):
Integrated Energy-saving Technologies
P = 4.5 to 7 bar
5.30
3.53
3.18
1.77
energy savings
(on average)
energy savings
(on average, see below).
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0
65
%
75
%
85
%
85 %
75 %
65 %
0
0
LEMCOM
Air Saving Control "ASC" ASC
"ASC"AIR SAVING CONTROL
1st Mini Vacuum Pump on Industrial Fieldbus
Energy Savings
Max venturi vacuum
L1*
"Product Gripped"
signal threshold
L2* "ASC" threshold
"Product Gripped" signal
authorizes operation
Blow-off control signal
Venturi characteristic
"Air Saving Control" Cycle
Time
Time
Object
Object
Consumed air
* L1 and L2 are the values
of adjustable thresholds
Vacuum control signal
The illustration above shows the adaptation capability of the LEMCOM module. "ASC"
operation is automatic for any object that is airtight or generally nonporous (cycle1).
If a leak occurs (cycle 2), due to a rough object or suction cup wear:
1/ the module automatically detects the anomaly, 2/ ends the cycle without "ASC" in order
to continue production and 3/ reports the event for possible maintenance. Production
continues and once everything is returned to normal (cycle 3), "ASC" operation is auto
-
matically resumed.
Smart Adaptation
Energy savings from "ASC" are significant, as the two
examples opposite show:
75% savings for transferring an object after
gripping.
99% savings for holding an object during a
1 minute operation.
The product often pays for itself in just a few months.
Phase Duration
Air consumption
without "ASC" with "ASC"
Energy
savings
achieved
Gripping 0.28 s 0.014 ft
3
0.014 ft
3
Transfer 1.20 s 0.063 ft
3
0
Release 0.14 s 0.007 ft
3
0.007 ft
3
0.084 ft
3
0.021 ft
3
75 %
Phase Duration
Air consumption
without "ASC" with "ASC"
Energy
savings
achieved
Clamping 0.55 s 0.028 ft
3
0.028 ft
3
Operations 60 s 3.178 ft
3
0
Release 0.14 s 0.007 ft
3
0.007 ft
3
3.213 ft
3
0.035 ft
3
99 %
Resulting Savings
1- Gripping + Transfer (1.4 mm nozzle Ø, emptying 0.2 l)
2- Clamping + Operations (1.4 mm nozzle Ø, emptying 0.4 l)
vacuum
Consumed air
Cycle 1 Cycle 2 Cycle 3
airtight object
roughness
porosity
airtight object
without ASC
"ASC off" signal
LEMCOM series vacuum pumps, which integrate an ASR "venturi regulator" combination, maintain ideals that
COVAL values greatly: reducing both compressed air consumption and noise generation.
Vacuum
As illustrated above, the LEMCOM module automatically executes the "ASC", cycle, thus saving
the maximum amount of energy, based on the following 3 phases.
1- Gripping the object
The "vacuum" solenoid ➋ starts the cycle by supplying the venturi ➌ which
generates the vacuum to quickly pick up the object with the suction cup short-
term consumption.
2- Operations on the object held by vacuum
The vacuum level is constantly monitored by the vacuum switch ➏. When it reaches the
L1 threshold (65%), the "gripped object" signal is generated, which allows the planned
operations (transfer, machining, etc.). When the vacuum reaches threshold L2 (75%), the
supply to the venturi via the solenoid valve ➋ is cut off consumption is halted. The
object remains held by the retained vacuum thanks to the closed valve ➎. Micro-leaks
will generally cause the vacuum level to fall slowly. Each time it falls below 65%, vacuum
generation is briefly resumed until it reaches threshold L2 (75%).
3- Releasing the object
At the end of operations, blow-off is ordered. The "blow-off" solenoid valve ➑
generates a stream of air which closes the isolation valve ➒, blows on the object to
release it quickly.
Vacuum resumed
automatically
Vacuum
Typical "ASC" Cycle 1- Gripping 2- Operations on Vacuum Gripped Product
3- Release
no consumptionno consumption
"ASC": AN ADVANTAGE WITHOUT LIMITATIONS
Saving energy has become essential. With LEMCOM,
thanks to ASC, energy is saved automatically without
interfering with established practices:
1- No specific adjustment
The default setting (L1 = 65%, L2 = 75%) is suitable
for most applications.
2- Production regardless of conditions
Performance is guaranteed. When necessary,
without "ASC", if the leakage level is too high.
3- Guided maintenance
Clear display of the need for maintenance in order
to return to autoregulated "ASC" operation.
With LEMCOM, all settings are remotely configu
-
rable, and diagnosis is made easier.
Vacuum
generation stop
Vacuum loss due to leakage
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LEMCOM
LEMCOM master LEMCOM
secondary module
P
P
P
P
Stand-alone modules are suitable for the most common
applications: one module controls one or more suction cups, all
of which operate according to the same sequence.
When several suction cups are operating according to different
sequences, multiple modules are required, which can be:
several autonomous modules, OR
a group of these modules with an internally shared pressure
supply
The illustrations shown here guide the selection:
autonomous modules are coupled with integrated pressure
regulators (ASR)
in a group, the integrated regulator is eliminated: to
maintain the advantage of economical and silent operation,
it is recommended to reduce the group's common pressure
supply to 4 bar.
The maximum number of modules in an island depends on the
power of the modules that must be active simultaneously:
5 modules maximum for nozzle 1.4 mm ID.
7 modules maximum for nozzle 1.2 mm ID.
9 modules maximum for nozzle 1 mm ID.
Individual or Island Modules?
island of 3 modules
supplying suction cups
according to different
sequences or operations
P optimal = 4 bar
(operation at 4-7 bar)
Network: 4.5 to 7 bar Optimal pressure: 4 bar
regulator 3.5 bar
common pressure
supplied to units
stand-alone
module
Vacuum control by NC (Normally Closed) solenoid valve
is the most common: in the event of an electrical shut-
off, vacuum is no longer generated. On the other hand,
with a NO (Normally Open) solenoid valve, vacuum
continues to be generated in the event of an electrical
shut-off, providing positive object-gripped security.
The diagrams opposite show that both versions
are controlled by the same "vacuum" signal
: The
opposite
required for control of the NO solenoid
valve is automatically obtained internally by the control
electronics.
Vacuum Control by NC or NO Solenoid Valve
NC solenoid valve NO solenoid valve
"vacuum" signal "vacuum" signal
Communications Panel
vacuum
indicators
3 x M8 con nectors
Module Status
customizable light
"gripped" product
Acti vity/l ink port 1& 2
blow-off
indicators
SET button
blow- off flow
regulator
vacuum
indicators
2 x M8 con nectors
Module Status
customizable light
"gripped" product
Network Status
COVAL Bus
blow-off
indicators
SET button
blow- off flow
regulator
1st Mini Vacuum Pump on Industrial Fieldbus
NC NO
Net work Sta tus
EtherNet/IP
PROFINET
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LEMCOM
LEMCOM secondary module
LEMCOM master
up to
16
modules
Settings, Diagnosis, and Process Data
On-board 2-Port Ethernet Switch.
On-board web server.
Dedicated configuration software.
M8/RJ45 standard connectors.
Universal secondary module, whatever the type of
bus used.
A Simple Product to Utilize
Multitude of Innovations
Maximum intelligence / minimal bulk.
One "master" module controls up to 15 secondary modules.
Master module is a fully-integrated pump.
Remote configuration, monitoring and diagnostics.
Dedicated Coval bus between master and secondary modules.
Simplified wiring and installation.
Standard secondary modules (regardless of the type of bus).
Additional communications port.
Supported buses: EtherNet/IP™ / PROFINET.
IP 65 / M8 standard connectors.
1st Mini Vacuum Pump on Industrial Fieldbus
Simplified Communication along the Entire Line
CONFIGURABLE
SETTINGS
"Product Gripped" and vacuum
regulation (ASC) thresholds.
Automatic blow-off.
State of valves in the event of loss of
communication.
Client LED status.
Network parameters.
Firmware updates…
DIAGNOSTIC
Cycle counters, vacuum and blow-off
control, gripped pieces, lost pieces,
ASC…
Power supply voltage.
Firmware version.
Product reference.
Vacuum cycle acquisition…
INPUT DATA
Vacuum and blow-off control.
OUTPUT DATA
Instant vacuum level (0 to 100%).
"Gripped Product" signal (ON/OFF).
Regulation system status.
Alarms (power supply voltage,
temper
ature, preventive maintenance).
Dedicated application
Vacuum management
made easy
Specially developed with vacuum
handling applications in mind,
LEMCOM Manager is a PC software package which allows you,
in just a few clicks, to remotely set up and configure LEMCOM
vacuum generators as well as run diagnostics.
Packed with numerous functions such as the import/export of
parameters, vacuum cycle analysis, alarm and operation cycle
monitoring, configuration help or even embedded firmware
updating.
The application allows all LEMCOM mini pumps to be controlled
remotely over the network either by the end user or by COVAL’s
technical support teams.
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BUS
COVAL Bus
COVAL Bus
BUS
BUS
BUS
LEMCOM
Avancée
MAÎTRE
L1: 650 h1: 100
L2: 750 h2: 100
SF AUTO
1500
ASC DIAG/E
ESCLAVE 1
L1: 650 h1: 100
L2: 750 h2: 100
SF AUTO
1500
ASC DIAG/E
ESCLAVE 14
L1: 650 h1: 100
L2: 750 h2: 100
SF AUTO
1500
ASC DIAG/E
ESCLAVE 2
Batt. max: 2
Temps analyse
DIAG/E: 2s
Led client: BL2
État pilotes: MODE1
� 18.2 V / 50°C
ESCLAVE 3
L1: 650 h1: 100
L2: 750 h2: 100
SF AUTO
ASC DIAG/E
ESCLAVE 4
L1: 650 h1: 100
L2: 750 h2: 100
SF AUTO
1500
ASC DIAG/E
CONFIGURATIONMODULES
Basique
PILOTAGE DE L’ÎLOT :
UNITÉ DE VIDE :
mbar
TOUS
v1.4
Niveau
de vide
842
mbar
Cycles de vide
18 526 654
Cycles de prise
18 422 546
Cycles de soufflage
8 533 622
Cycles ASC
8 533 622
Cycles de vide ext. : 14 522 024
Pièces perdues : 00 000 025
Erreurs ASC : 00 000 025
Erreurs tension : 00 000 002
Erreurs com. (local) : 00 000 000
Erreurs com. (bus) : 00 000 000
DIAGNOSTIC MAÎTRE
Ref. :
LEMC90X14SY2GFNSP1458
S/N :
00000025
Firmware version :
v01.00
Grip
ASC
Alimentation
19.3V
Température interne
47° C
ID ÎLOT : LEMCOM_ROBOT4XXXXXX
Adresse IP :
10.3.182.165
Sous-réseau :
255.255.255.0
Passerelle par défaut :
10.3.182.195
Adresse MAC :
20:5A:00:00:00:12
h2:
100
L2:
750
L1:
650
h1:
100
► Durée (ms)
1500
SF AUTO
ASC DIAG/E
1st Mini Vacuum Pump on Industrial Fieldbus
Simplified Communication along the Entire Line
The LEMCOM is based on an innovative, efficient product structure:
The "master" module manages communication on the fieldbus,
assures management of the "secondary" modules and is a fully-
integrated vacuum pump. Its 2 communication ports enable a
continuous fieldbus.
The "secondary" modules are interconnected with the "master"
module via the COVAL bus.
Contact between the "master" module and the "secondary" modules is
confirmed by an M8 connecting bridge for island configurations or by
a M8/M8 standard cable for configurations based on remote modules.
Advantages:
This product structure guarantees flexibility in selection, enabling
use of LEMCOMs in stand-alone, island or mixed configurations. As
a result, vacuum generators may be placed in close proximity to the
application, guaranteeing a reduction:
in gripping time
in cycle time
in energy consumption.
Because setup and diagnosis of the LEMCOM is carried out remotely,
it is not necessary to install them in easily accessible zones.
A Setting for Every Application
STAND-ALONE CONFIGURATION ISLAND CONFIGURATION
24 V DC
+ COVAL bus
termination
CUSTOMIZED
CONFIGURATIONS
LEMCOM
Motors
Encoders
Actuators…
1 "master" module
1 "master" module
+ 3 "secondary modules" remote, in island
+ 1 "secondary" remote stand-alone module
1 "master" module + 5 "secondary" modules
24 V DC
+ COVAL bus
termination
Full Remote Access
24 V DC
Embedded web server.
Implicit (I/O) and explicit messaging (setting) (EtherNet/IP).
Synchronous (I / O) and asynchronous data (configuration)
(PROFINET)
Dedicated universal application:
LEMCOM Manager.
LEMCOM parameters can easily be updated remotely and in several
ways. Configuration is possible using LEMCOM Manager PC software,
the embedded web server (EtherNet/IP and PROFINET) or by sending
vacuum parameters directly from the PLC during use or on initialization.
This flexibility enables the LEMCOM user to adapt to all types of
applications without direct intervention on the vacuum generator.
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LEMCOM
55% 65% 75%
1.0 mm
1.76 2.38 3.33
1.2 mm
1.13 1.53 2.15
1.4 mm
0.73 0.99 1.38
35% 45% 55%
1.0 mm
0.83 1.31 2.35
1.2 mm
0.52 0.83 1.49
1.4 mm
0.34 0.54 0.97
1.0 m m
2.38 3.33
1.2 mm
1.5 3 2 .15
1.4 mm
0.99 1. 38
20
40
60
80
100
20
40
60
80
100
3
3
2
1 - LEMC60X10
2 - LEMC60X12
3 - LEMC60X14
1 - LEMC90X10
2 - LEMC90X12
3 - LEMC90X14
65.6
74.6 25
7.5
7.5
G1/8"-F
18.5
1st Mini Vacuum Pump on Industrial Fieldbus
Selection Guide
1- Maximum Vacuum Level
Dependent upon the mixer
profile:
85% of maximum vacuum is
optimal for gripping airtight
products.
60% of maximum vacuum is
optimal for gripping porous
products.
2- Nozzle Diameter
Reflects the generated vacuum
flow rate, as well as energy
consumption. Hence, it must be
selected to meet precise require-
ments without wasting energy.
nozzle
diameter
mixer
buse
venturi
Venturi Specifications
Handling of Porous Products: (cardboard, untreated wood, pastries, etc.) LEMCOM 60% max. vacuum
When porosity and/or surface leaks are expected during gripping,
a vacuum level between 35% and 55% is the best economical
compromise generated by a maximum venturi vacuum level of 60%.
To determine the most effective nozzle diameter, use the table at right
and measure the leakage flow rate of the material.
Evacuation time (in seconds) of 1 liter volume
Consumed
Air
(SCFM)
Vacuum
flow
(SCFM)
vacuum
reached
Nozzle Ø
1.55 1.34
2.3 2.54
3.18 3.25
Handling of Airtight Products: (glass, plastic, coated wood, sheet metal, etc.) LEMCOM 85% max. vacuum
Gripping done without major leaks will benefit from a high level of
vacuum: Between 55% and 75% generated by a maximum venturi
vacuum level of 85%.
Depending on the volume to be evacuated and the time available for
product gripping, use the table below to select the most effective
nozzle diameter and vacuum flow rate.
On airtight products, "ASC" enables you
to considerably reduce compressed air
consumption. The table below shows:
A larger nozzle provides a faster grip without consuming more,
when using "ASC".
A smaller nozzle only consumes less when the operation is
continued without "ASC".
Evacuation time (in seconds) of 1 liter volume
Consumed
Air
(SCFM)
Vacuum
flow
(SCFM)
vacuum
reached
Nozzle Ø
1.55 1.02
2.3 1.59
3.18 2.47
Ø buse
gripping time
(65% vacuum)
(s)
Time up to 75%
vacuum (s)
Consumed Air
(ft
3
)
0.077
0.077
0.077
Working without "ASC":
When using "ASC" (evacuation of 1 liter volume):
Suction Flow Rate / Vacuum Curves
LEMCOM:
max. vacuum 60 %
LEMCOM:
max. vacuum 85 %
Suction flow (SCFM)
Vacuum (in %)
Suction flow (SCFM)
Vacuum (in %)
0.710.71
1.411.41
2.122.12
2.832.83
3.533.53
The LEMCOM mini vacuum pumps can be equipped with the "exhaust manifold" option, which provides a
G1/8''-F connection to the exhaust in order to add a silencer, transfer the exhaust outside the work area or
to avoid air discharge near the workpiece. (LEMC___E Version).
This option must be specified at time of ordering as it cannot be added later.
Note: The design of the exhaust manifold and vacuum pumps do not guarantee the complete sealing of the
exhaust and therefore cannot be used in a "clean room" environment.
Exhaust manifold: option E
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LEMCOM
Q2
Y2
Z2
_
B2
B3
B4
B
S
V
60
90
10
12
14
NO
LEMC 90 X 12 S Y2 G – B2
–
E
1st Mini Vacuum Pump on Industrial Fieldbus
Configuring a Vacuum Pump
NC
OPTION: Version without non-return valve available on request.
EXAMPLES OF COMPLETE PART NUMBER:
LEMC90X14SY2G LEMCOM vacuum pump, 85% maximum vacuum, 1.4 mm Ø nozzle, controlled
by a NC (Normally Closed) solenoid valve, stand-alone EtherNet/IP™ "master" module.
LEMC90X10SY2GB3 Island assembly of 3 LEMCOM vacuum pumps, 85% maximum vacuum, 1
mm nozzle Ø, controlled by a NC (Normally Closed) solenoid valve, EtherNet/IP™ "master" module,
2 secondary modules, with connecting bridges and the M8/M8 "COVAL Bus" 120 Ω termination.
NB: LEMC__X___Z2GB_ "Secondary"
island modules are delivered without the
M8/ M8 "COVAL Bus" 120 Ω termination -
order separately.
NB: If necessary, M8/M8 "COVAL Bus" 120 Ω
termination is available in accessories
VACUUM LEVEL
60 % max. vacuum
is optimal for
porous materials
85 % max. vacuum
is optimal for
airtight products
NOZZLE DIAMETER
1 mm Ø nozzle
1.2 mm Ø nozzle
1.4 mm Ø nozzle
MODULE COMPOSITION
NC Vacuum pump with blow-off
LEMC__X__S__G__
NC vacuum control
valve:
in case of elec-
trical cut-off,
vacuum genera-
tion stops.
Blow-off configured
on site at choice:
- Blow-off controlled by specific signal;
- Automatically delayed blow-off time
from 0 to 10 s.
Adjustable blow-off flow rate.
NO Vacuum pump with blow-off
LEMC__X__V__G__
NO vacuum control
valve:
In case of elec-
trical cut-off,
vacuum contin-
ues to be gener-
ated.
Blow-off configured
on site, at choice:
- Blow-off controlled by specific signal;
- Automatically delayed blow-off time
from 0 to 10 s.
Adjustable blow-off flow rate.
EXHAUST
Open (integrated silencer)
Exhaust manifold
(G1/8''-F)
PROTOCOL
master
LEMC__X___Q2G__
On-board 2-Port
Ethernet Switch.
On-board web
server.
Dedicated configura-
tion software.
M8/RJ45 standard
connectors.
GSDML file.
master
LEMC__X___Y2G__
On-board 2-Port
Ethernet Switch.
On-board web
server.
Dedicated configura-
tion software.
M8/RJ45 standard
connectors.
RSLogix 5000 AOI
+ EDS file.
secondary module
LEMC__X___Z2G__
Universal secondary
module, can be used
with any fieldbus.
If necessary, M8/M8
"COVAL Bus"
120 Ω termination,
available in
accessories.
CONFIGURATION
1 stand-alone module
Island assemblies
LEMC__X_____GB2
Island assembly with 2
modules, with connecting
bridges for internal
"COVAL Bus" and M8/M8
120
Ω
termination:
The first module is of the type
selected
in " P ROT OCOL".
The following one is a secon
-
dary module.
LEMC__X_____GB3
Island assembly
with 3 modules, with
connecting bridges for
internal "COVAL Bus"
and M8/M8 120 Ω
termination:
The first module is of the type
selected in "PROTOCOL".
The following two are secon-
dary modules.
…
Components for island
assembly
LEMC__X_____GB
Island module, complete
with integrated assembly
screw.
Island endplates set
complete with assembly
screw and plug for
common pressure inlet.
Part No.: LEMSETA
Connecting bridge for
internal "COVAL Bus".
Part No.: 80001231
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LEMCOM
65
12.5
G1/4"F
66.5
75
85
25
15
77
65.5
25 x n LEMCOM + 40
25 x n LEMCOM + 20
66.5
74
26.5
35
1st Mini Vacuum Pump on Industrial Fieldbus
Dimensions, Mounting Options
DIN rail mounting kit:
2 clips + 2 screws
Part No.: LEMFIXC
Mounting from front Mounting on DIN rail
2 optional holes for 1 Ø 4mm connecting screw,
at each end of the island
4 optional holes for 2 Ø 4mm screws
2- Islands
DIN rail mounting kit:
1 plate /clip + 4 screws
Part No.: LEMFIXB
Kit for mounting from front:
1 plate + 4 screws
Part No.: LEMFIXA
Mounting from front
Mounting on DIN rail
Ø 4 mm screw
Ø 4 mm screw
individual
mounting
plate with
4 mounting
screws
2 x Ø 4 mm
mounting
screws
Individual mounting plate with DIN
mounting clip and 4 mounting screws
Mounting from side
M8 connectors
2 holes for
Ø 4 screws
tube Ø 6mm
M8 connectors
2 connecting
screws or bolts,
Ø 4mm
2 large washers
Connector hole pitch
("master" module)
1- Stand-alone Modules
Pressure
= 4.5 à 7 bar
Vacuum
Exhaust
For static mounting (for example,
in a cabinet), a module can be
clipped onto a DIN rail. For this
purpose, the module must first
be equipped with an individual
plate for mounting onto a DIN rail
To mount from front, in addition
to the module, a mounting kit
must be ordered:
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LEMCOM
1
1
(YE)
TX+
2
3
(WH)
RX+
3
6
(BU)
RX-
4
2
(OG)
TX-
1
(BR)
24V CC
2
(WH)
CAN-H
3
(BU)
CAN-GND
4
(BK)
CAN-L
COVAL Bus
1
(BR)
24V CC
2
(WH)
CAN-H
3
(BU)
CAN-GND
4
(BK)
CAN-L
24V CC NC GND NC
M8
RJ45 M8
M8
LEMCOM master LEMCOM
secondary module
1st Mini Vacuum Pump on Industrial Fieldbus
Connections
Electrical Connections
"COVAL bus"
M8/M8 "COVAL BUS" 120 Ω TERMINATION
Male M8/Female M8 cable integrating a 120 Ω termination resistor.
The termination must be integrated on the last "secondary" module of the
COVAL Bus, between the final M8 connector of the product and the 24V DC
electric supply.
switch 2 ports
YE: yellow, WH: white, BU: blue,
OG: orange, BR: brown, BK: black
ACCESSORIES
Cat 5 shielded Ethernet cable: M8, straight,
female, 4-pin – RJ45, straight, male, 8-pin –
suitable for drag chain use
CDM8RJ45L2: length 2 m. CDM8RJ45L5: length 5 m.
CDM8RJ45L10: length 10 m.
Other lengths on request.
Cat 5 shielded Ethernet cable: M8, straight,
female, 4-pin, on both ends – suitable for
drag chain use
80003053: length 1 m.
M8/M8 “COVAL bus” cable: M8, straight,
female, 4-pin – M8, straight, female, 4-pin
CDM8FFL05: length 0.5 m. CDM8FFL1: length 1 m.
CDM8FFL2: length 2 m. CDM8FFL4: length 4 m.
Other lengths on request.
Power supply cable: M8, straight, female, 4-pin
– open end
CDM8: length 2 m. CDM8N: length 0.5 m.
120 Ω “COVAL bus” termination: M8, straight,
female, 4-pin – M8, plug, male, 4-pin
80002303: length 0.2 m.
The COVAL bus is based on a CAN architecture and requires the addition of a bus ter-
mination to ensure proper communication between the secondary and master modules.
It takes the form of an M8 male/M8 female cable that includes a 120 Ω line termination
resistor.
It must be integrated on the last secondary of the COVAL bus, between the module’s rear
connector and the 24 V DC power supply.
When using a stand-alone master module, this termination is not required.
power supply
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LEMCOM
1st Mini Vacuum Pump on Industrial Fieldbus
Specifications
Common Specifications Service Specifications
Supply: Non-lubricated air 5 microns filtered, according to stan-
dard ISO 8573-1:2010 [4:5:4].
Operating pressure: 4.5 to 7 bar.
Mini dynamic pressure: - stand-alone module: P = 4.5 bar.
- island modules: 4 bar.
Blow-off: adjustable flow: - stand-alone version: P = 3.5 bar.
- island version: P network.
Maximum vacuum: 85%.
Suction flow rate: From 1.02 to 3.25 SCFM.
Air consumption: From 1.55 to 3.18 SCFM, when operating "wit-
hout ASC".
Integrated non-clogging silencer.
Noise level: approximately 68 dBA "ASC off". 0 dBA with ASC.
Electric protection grade: IP65.
Maximum operating frequency: 4 Hz.
Service life: 30 million cycles.
Weight: 150 g.
Operating temperature: From 32 to 122°F.
Materials: PA 6-6 15% FG, brass, aluminum, NBR.
4-pins M8 male connectors.
Self-Adaptation
Continuous monitoring of the leakage level: Shutoff or automa-
tic return to operation with ASC.
Integrated electronics
24 V DC supply (regulated ± 10 % ).
Electric consumption: "master" < 150 mA, "secondary" < 100 mA,
of which 30 mA (0.7W) per vacuum and blow-off pilot.
Measurement range: 0 to 99% vacuum.
Measurement accuracy: ±1.5 % of range, temperature compen-
sated.
Communication ports protected against wiring errors or rever-
sed polarity.
Settings
Piece gripping (L1) and regulation (L2)thresholds.
Automatic blow-off time configurable (0 to 10 seconds).
Activation/deactivation of ASC regulation system.
Activation/deactivation of the (DIAG ECO) leakage level monito-
ring system.
Adjustable blue LED functioning mode
Valve functioning mode in the event of loss of communication
Diagnosis
Instantaneous vacuum level (0 to 99%).
Gripped product, loss of product, regulation in process, regula-
tion default information.
Cycle counters (vacuum, blow-off, gripped piece, ASC, etc.).
Supply voltage and internal temperature.
Product reference and serial number.
Firmware version.
Configuration and diagnosis tools
LEMCOM Manager PC software (EtherNet/IP, PROFINET and
CANopen universal application).
Embedded web server (EtherNet/IP and PROFINET module).
Communication
EtherNet/IP:
2-port ethernet switch.
Static IP address or DHCP.
EDS file & RSLogix 5000 Add-On Instructions.
PROFINET:
2-port ethernet switch.
Static IP address or PROFINET DCP.
GSDML file
COVAL Bus:
CAN link between "master" and "secondary" units / 1 Mbps.
Connection by specific bridge for island assembly or unshielded
female M8/female M8 cable.
Max total length of the COVAL Bus: 20 meters.
Page 13
COVAL S.A.S. COVAL INC. COVAL IBERICA COVAL GERMANY COVAL ITALIA COVAL CHINA
Distributed by:
COVAL VACUUM TECHNOLOGY INC.
901 Jones Franklin Road
Suite 100
Raleigh, NC 27606
Phone : (919) 233-4855
Fax : (919) 233-4854
www.coval-inc.com
certified quality
management system
© COVAL 0 7/2022 – Illus trations KeyOx – T he diagrams are not c ontractual. T he range and featur es of the product s may be modified by COV AL without noti ce.
Head Office
A TECHNOLOGICAL PARTNER ON A GLOBAL SCALE
Located in the southeast region of France, COVAL conceives,
manufactures and globally distributes high performance,
advanced vacuum automation components and systems for
industrial applications in all branches.
COVAL is an ISO 9001: V2015 certified company which offers
innovative solutions integrating reliable and optimized components
with intelligent functionalities. The focus is to provide the most
personalized and economic solution to a given application while
assuring a significant improvement in the productivity and the
safety for the vacuum users around the world.
COVAL has an ambition for technical excellence and innovation. As
a specialist in vacuum automation, COVAL is reputed for offering
reliable, personalized, cost effective and productive solutions.
The references of COVAL can be found in several industrial
sectors (Packaging, Automotive Industry, Plastic, Graphic,
Aeronautic…) where vacuum handling is important for high
efficiency and productivity.
COVAL markets its products and services all over Europe, in
the United States and South America through its subsidiaries
and authorized distribution network. COVAL strives to provide
customer driven solutions and gives the best possible treatment
to satisfy all its clients.
For all enquiries from Australia, Africa and Asia kindly contact
COVAL head office in France.
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