Beijer Electronics VICPAS EXTER T40 User manual

EXTER T40/T40m
Installation Manual
English
MAEN812E, 2014-11

Foreword
Installation manual for EXTER T40/T40m
Foreword
All EXTER operator panels are developed to satisfy the demands of
human-machine communication. Built-in functions such as displaying and
controlling text, dynamic indication, time channels, alarm and recipe handling
are included.
The operator panel works primarily in an object-oriented way, making it easy to
understand and use. Configuration is carried out on a PC using the configuration
tool. The project can then be transferred and stored in the operator panel itself.
Various types of automation equipment such PLCs, servos or drives can be
connected to the EXTER operator panels. In this manual, the term “the
controller” refers to the connected equipment.
This manual explains how to install the operator panel. Please refer to the
reference manual for further information.
Order no: MAEN812E
Copyright © 2014-11 Beijer Electronics AB. All rights reserved.
The information in this document is subject to changewithoutnoticeandisprovidedasavailableatthe
time of printing. Beijer Electronics AB reserves the right to change any information without updating this
publication. Beijer Electronics AB assumes no responsibility for any errors that may appear in this document.
Read the entire installation manual prior to installing and using this equipment. Only qualified personnel
may install, operate or repair this equipment. Beijer Electronics AB is not responsible for modified, altered
or renovated equipment. Because the equipment has a widerangeofapplications,usersmustacquirethe
appropriate knowledge to use the equipment properly in their specific applications. Persons responsible
for the application and the equipment must themselves ensure that each application is in compliance with
all relevant requirements, standards and legislationinrespecttoconfigurationandsafety. Onlypartsand
accessories manufactured according to specifications set by Beijer Electronics AB may be used.
BEIJER ELECTRONICS AB SHALL NOT BE LIABLE TO ANYONE
FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE
INSTALLATION, USE OR REPAIR OF THIS EQUIPMENT, WHETHER
ARISING IN TORT, CONTRACT, OR OTHERWISE. BUYER'S SOLE
REMEDY SHALL BE THE REPAIR, REPLACEMENT, OR REFUND
OF PURCHASE PRICE, AND THE CHOICE OF THE APPLICABLE
REMEDYSHALLBEATTHESOLEDISCRETIONOFBEIJER
ELECTRONICS AB .
Beijer Electronics, MAEN812E

Contents
Contents
1 SafetyPrecautions ....................................................... 4
1.1 General ........................................................... 4
1.2 UL and cUL Installation ......................................... 4
1.3 DuringInstallation .............................................. 6
1.4 DuringUse ....................................................... 6
1.5 Service and Maintenance ........................................ 6
1.6 Dismantling and Scrapping ..................................... 6
2 Installation ............................................................... 7
2.1 SpaceRequirements ............................................. 7
2.2 InstallationProcess .............................................. 7
2.2.1 ModeSwitches ...................................................10
2.2.2 ConnectionstotheController ..................................10
2.2.3 OtherConnectionsandPeripherals .............................10
3 TechnicalData ........................................................... 11
4 ChemicalResistance .................................................... 12
4.1 MetalCasing ..................................................... 12
4.2 Touch Screen and Overlay Material ............................ 12
4.2.1 AutotexF157/207 ...............................................12
4.2.2 TouchScreenSurface ............................................13
4.2.3 TouchScreenProtector ..........................................14
5 OperatorPanelDrawings .............................................. 15
5.1 CommunicationPorts ........................................... 15
5.2 EXTER T40/T40m Outline .................................... 16
6 Additional Installation Tips ............................................ 17
6.1 Grounding the Operator Panel ................................. 17
6.2 Ethernet Connection in the Panel .............................. 18
6.3 To Achieve Better EMC Protection ............................. 19
6.4 AmbientTemperature ........................................... 20
6.5 Safety ............................................................. 21
6.6 GalvanicIsolation ................................................ 22
6.7 Cable and Bus Termination RS485 ............................. 23
Beijer Electronics, MAEN812E

Safety Precautions
1SafetyPrecautions
Both the installer and the owner and/or operator of the operator panel must read
and understand this installation manual.
1.1 General
•Read the safety precautions carefully.
•Check the delivery for transportation damage. If damage is found, notify the
supplier as soon as possible.
•The supplier is not responsible for modified, altered or reconstructed
equipment.
•Use only parts and accessories manufactured according to specifications of
the supplier.
•Read the installation and operating instructions carefully before installing,
using or repairing the operator panel.
•Neverallowfluids,metalfilingsorwiringdebristoenteranyopeningsinthe
operator panel. This may cause fire or electrical shock.
•Only qualified personnel may operate the operator panel.
•Storing the operator panel where the temperature is lower/higher than
recommended in this manual can cause the LCD display liquid to
congeal/become isotopic.
•The LCD display liquid contains a powerful irritant. In case of skin contact,
wash immediately with plenty of water. In case of eye contact, hold the eye
open,flushwithplentyofwaterandgetmedicalattention.
•Thefiguresinthismanualservesanillustrativepurpose. Becauseofthemany
variables associated with any particular installation, the supplier cannot
assume responsibility for actual use based on the figures.
•The supplier neither guarantees that the operator panel is suitable for your
particular application, nor assumes responsibility for your product design,
installation or operation.
•It is recommended to turn on and shut down the operator panel at least once
before installing any components/cards or before connecting the operator
panel to external devices, like for example serial devices.
1.2 ULandcULInstallation
Caution:
This section is only valid for UL labeled EXTER T40/T40m panels.
•This equipment is suitable for use in non-hazardous locations only.
[Combinations of equipment in your system are subject to investigation by
the local authority having jurisdiction at the time of installation].
•All devices have to be supplied by a Class 2 power supply.
Beijer Electronics, MAEN812E 4

Safety Precautions
Warning:
Do not disconnect equipment unless power has been removed or the area is
known to be non-hazardous
AVANT DE DECONNECTER L’EQUIPEMENT, COUPER LE COURANT
OUS’ASSURER QUE L‘EMPLACEMENT EST DESIGNE NON DANGEREUX.
Warning:
Only UL and cUL approved expansion units are allowed to be connected to
the port designated “EXPANSION”. At the moment there are no such units
evaluated or allowed.
SEULES LES UNITÉS D'EXTENSION CERTIFIÉES UL ET
cUL PEUVENT ÊTRE RACCORDÉES AU PORT DÉSIGNÉ « EXPANSION ».
À L'HEURE ACTUELLE, AUCUNE UNITÉ DE CE TYPE N'A ÉTÉ TESTÉE
OU AUTORISÉE.
Warning:
Do not replace expansion unit unless power has been switched off or the area
is known to be non-hazardous.
NE REMPLACEZ L'UNITÉ D'EXTENSION QUE SI LE
COURANT A ÉTÉ COUPÉ OU SI LA ZONE EST JUGÉE NON DANGEREUSE.
•This product contains a battery; this must only be changed in an area known
to be non-hazardous.
•Replace the battery with a CR2450 battery. Use of another type of battery
may present a risk of fire or explosion.
Warning:
Battery may explode if mistreated. Do not recharge, disassemble or dispose
of in fire.
LA BATTERIE PEUT EXPLOSER EN CAS DE MAUVAISE MANIPULATION.
NE LA RECHARGEZ PAS, NE LA DÉMONTEZ PAS ET NE LA JETEZ
PAS DANS LE FEU.
•For use on a flat surface of a type 4X enclosure indoor use only.
•Use minimum 75°C copper conductors only.
•To make wiring connections to the power supply connector, follow the table
with cable and torque specifications below:
Terminal Block Connector Wire Size TQ Lb.In.
X1/X100 Phoenix connectors AWG 30–12 5–7
X1/X100 Anytek connectors AWG 24–12 3.5
•These devices are Class 2 supplied programmable controllers (industrial PCs)
for the use in industrial control equipment and are intended to be (front)
panel mounted (Type 1 and 4x for indoor use only).
Beijer Electronics, MAEN812E 5

Safety Precautions
Caution:
TheenclosureprovidesadegreeofprotectionofatleastIP20,butwheninstalledinan
apparatus, it should meet IP54.
LE BOÎTIER OFFRE UN DEGRÉ DE PROTECTION D'AU MOINS IP20, MAIS
LORSQU'IL EST INSTALLÉ DANS UN APPAREIL, IL DOIT ÊTRE DE CLASSE IP54.
1.3 During Installation
•The operator panel is designed for stationary installation on a plane surface,
where the following conditions are fulfilled:
–no high explosive risks
–no strong magnetic fields
–no direct sunlight
–no large, sudden temperature changes
•Install the product according to the accompanying installation instructions.
•Ground the product according to the accompanying installation instructions.
•Only qualified personnel may install the operator panel.
•Separate the high voltage, signal and supply cables.
•Make sure that the voltage and polarity of the power source is correct before
connecting the product to the power outlet.
•Peripheral equipment must be appropriate for the application and location.
1.4 During Use
•Keep the operator panel clean.
•Emergency stop and other safety functions may not be controlled from the
operator panel.
•Do not use excessive force or sharp objects when operating the touchscreen.
1.5 Service and Maintenance
•Only qualified personnel should carry out repairs.
•The agreed warranty applies.
•Before carrying out any cleaning or maintenance operations, disconnect the
equipment from the electrical supply.
•Clean the display and surrounding front cover with a soft cloth and mild
detergent.
•Replacing the battery incorrectly may result in explosion. Only use batteries
recommended by the supplier. During the warranty period, the battery needs
to be replaced by an authorized Beijer Electronics service center.
1.6 Dismantling and Scrapping
•The operator panel or parts thereof shall be recycled according to local
regulations.
•The following components contain substances that might be hazardous
to health and the environment: lithium battery, electrolytic capacitor and
display.
Beijer Electronics, MAEN812E 6

Installation
2Installation
2.1 Space Requirements
•Installation plate thickness: 1.5 - 7.2 mm (0.06 - 0.28 inch)
•Space requirements when installing the operator panel:
57 mm
119 mm
155.8 mm
100 mm
(4.0 inch)
100 mm
(4.0 inch)
50 mm
(2.0 inch)
50 mm
(2.0 inch)
100 mm
(4.0 inch)
(2.24 inch)
(6.13 inch)
(4.69 inch)
Caution:
The openings on the enclosure are for air convection. Do not cover these openings.
2.2 Installation Process
1. Unpack and check the delivery. If damage is found, notify the supplier.
x 4
Panel cut out 139 x 105 mm
(5.47 x 4.13 inch)
Note:
Place the operator panel on a stable surface during installation.
Dropping it or letting it fall may causedamage.
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Installation
2. Place the panel cut out where the operator panel is to be situated, draw along
the outer sides of the holes and cut according to the markings.
3. Secure the operator panel in position, using all the fastening holes and the
provided brackets and screws:
x 4
0.5 - 1.0 Nm
Beijer Electronics, MAEN812E 8

Installation
4. Connect the cables in the specified order, according to the drawing and steps
below.
Caution:
•The operator panel must be brought to ambient temperature before it is started
up. If condensation forms, ensure that the operator panel is dry before connecting
it to the power outlet.
•Ensure that the operator panel and the controller system have the same electrical
grounding (reference voltage level), otherwise errors in communication may
occur.
•Ensure that the voltage and polarity of the power source is correct.
•Separate high voltage cables from signal and supply cables.
•Shielded communication cables are recommended.
24V DC
RS422/
RS485
RS232
24V DC
A
D
Controller
Power
B
Ethernet
C
–Connect cable A.
–Connect cable B, using an M5 screw and a grounding conductor (as short
as possible), that is sized correctly according to local electrical codes.
–Connect cable C.
–Connect cable D.
5. Carefully remove the laminated film over the operator panel display, to avoid
static electricity that could damage the panel.
Beijer Electronics, MAEN812E 9

Installation
2.2.1 Mode Switches
All mode switches must be in OFF position during operator panel use.
Themodeswitchesshouldnotbetouchedunlessbyqualifiedpersonnel.
1 2 3 4
ON DIP
1 2 3 4
ON DIP
2.2.2 Connections to the Controller
For information about the cables to be used when connecting the operator panel to
the controller, please refer to the help file for the driver in question.
2.2.3 Other Connections and Peripherals
Cables, peripheral equipment and accessories must be suitable for the application
and its environment. For further details or recommendations, please refer to the
supplier.
Beijer Electronics, MAEN812E 10

Technical Data
3TechnicalData
Parameter EXTER T40/T40m
Frontpanel,WxHxD 155.8x119x6mm
Mounting depth 57 mm (157 mm including clearance)
Front panel seal IP 66
Rear panel seal IP 20
Keyboard
material/Front
panel
Touch screen: Polyester on glass, 1 million finger touch
operations. Overlay: Autotex F157 or F207*.
Reverse side
material
Powder-coated aluminum
Weight 0.6 kg
Serial port
RS422/RS485
25-pin D-sub contact, chassis-mounted female with
standard locking screws 4-40 UNC
Serial port RS232C 9-pin D-sub contact, male with standard locking screws 4-40
UNC
Flash memory for
application
12 MB (incl. fonts)
Ethernet Shielded RJ 45
USB Host type A (USB 1.1), max output current 500 mA
Real time clock ±20 PPM + error because of ambient temperature. Total
maximum error: 1 minute/month at 25 °C.
Temper ature coe fficient: -0.034±0.006 ppm/°C2
Real time clock
battery
CR2450 (UL and cUL: Sanyo or Panasonic)
Minimum lifetime: 3 years
Power consumption
at rated voltage
Normal: 0.15 A
Maximum: 0.35 A
Display TFT-LCD, 320 x 240 pixels, T40: 64K colors; T40m: 16
greyscales.
LED backlight lifetime at the ambient temperature of
+25 °C: >20,000 h.
Active area of
display, W x H
70.1 x 52.6 mm
Fuse Internal DC fuse, 2.0 AT, 5 x 20 mm
Power supply +24 V DC (20 - 30 V DC). Power supply connector.
CE: The power supply must conform with the requirements
according to IEC 60950 and IEC 61558-2-4.
UL and cUL: The power supply must conform with the
requirements for class II power supplies.
Ambient
temperature
Vertical installation: 0 ° to +50 °C
Horizontal installation: 0 ° to +40 °C
Storage temperature -20 ° to +70 °C
Relative humidity 5 - 85 % non-condensed
Approvals and
certifications
Information is available on the web site
www.beijerelectronics.com
*SeesectionChemical Resistance for more information.
Beijer Electronics, MAEN812E 11

Chemical Resistance
4 Chemical Resistance
4.1 Metal Casing
The frame and casing material is powder-coated aluminum. This powder paint
withstands exposure to the following chemicals without visible change:
Acetic acid 10% Phosphoric acid 4%
Citric acid 10% Phosphoric acid 10%
Diesel Sea water
Distilled water Sodium chloride 2%
Edible oil Sodium chloride 20%
Fuel oil Sulphuric acid 20%
Hydrogen peroxide 3% Tap water
The powder paint shows limited resistance to the following chemicals at room
temperature:
Butanol Nitric acid 3%
Hydrochloric acid 5% Nitric acid 10%
Isopropyl alcohol Phosphoric acid 43%
Na-hypochlorite 10% Turpentine
Note:
If exposure to any of the above chemicals is demanded, it is recommended to first test
the chemical in a hidden spot of the metal casing.
Thepowderpaintshowslittleornoresistancetothefollowingchemicalsatroom
temperature:
Acetic acid, conc. Methyl-ethyl ketone Toluene
Acetone Nitric acid 30% Trichlorethylene
Ammonia 5% Phenol Xylene
Ammonia, conc. Sodium hydroxide 5% 97 octan unleaded petrol
Ethyl acetate Sodium hydroxide 30% 98 octan leaded petrol
4.2 Touch Screen and Overlay Material
4.2.1 Autotex F157/207
Autotex F157 or F207 covers the overlay surrounding the screen.
Beijer Electronics, MAEN812E 12

Chemical Resistance
Solvent Resistance
Autotex F157/F207 withstands exposure of more than 24 hours duration under
DIN42115Part2tothefollowingchemicalswithoutvisiblechange:
Acetonitrile Diesel Downey / Lenor1Phosphoric acid (<30%)
Ajax / Vim in solution EthanolPotassiumferricyanide
Alkalicarbonate solution1Glycerine Potassium hydroxide
(<30%)
Ammonia (<40%)1Glycol Pure Turpentine
Acetic acid (<50%) Gumption1SBP 60/951
Ariel powder in solution1Hydrochloric acid (<36%) Sulfuric acid (<10%)
Bleach1Linseed oil Tomato ketchup
Castor oil Methanol Trichloroacetic acid
(<50%)
Caustic soda (<40%)1Nitric acid (<10%) White Spirit
Cutting oil Paraffinoil Windex
1
Cyclohexanol Persil powder in solution1Wisk
Diacetone alcohol Petroleum spirit1-
1Extremely faint glossing of the texture was noted.
Autotex withstands DIN 42 115 Part 2 exposure of up to 1 hour duration to glacial
acetic acid without visible change.
Autotex is not resistant to high pressure steam at over 100 °C or the following
chemicals:
Concentrated mineral acids Benzyl alcohol
Concentrated caustic solution Methylene chloride
Outdoor Use
In common with all polyester based films Autotex F157/F207 is not suitable for
use in conditions of long term exposure to direct sunlight.
4.2.2 Touch Screen Surface
The touch screen surface on the operator panel withstands exposure to the
following solvents without visible change:
Solvents Time
Acetone 10 minutes
Isopropanol 10 minutes
Toluene 5 ho urs
Beijer Electronics, MAEN812E 13

Chemical Resistance
4.2.3 Touch Screen Protector
For harsh environments and exposure to outdoor conditions, it is recommended
to use a protective film to guard the touch screen from damage. These optional
parts can be ordered from Beijer Electronics.
Beijer Electronics, MAEN812E 14

Operator Panel Drawings
5 Operator Panel Drawings
5.1 Communication Ports
RS-232
RS-422
RS-422/485
RS-485
Ethernet
USB
Beijer Electronics, MAEN812E 15

Operator Panel Drawings
5.2 EXTER T40/T40m Outline
Beijer Electronics, MAEN812E 16

Additional Installation Tips
6 Additional Installation Tips
When experiencing communication problems in for example noisy environments
or when operating close to temperature limits, the following recommendations
are to be noticed.
6.1 Grounding the Operator Panel
1
2
3
4
5
6
Door
Operator panel
Ferrite core
Mounting plate in the cabinet
Power supply
24 V DC
5350
The operator panel’s mounting clamps do not provide a secure grounding
connection between the panel and the device cabinet, see 1 in drawing above.
1. Connect a wire that is sized correctly according to local electrical codes
between the operator panel’s quick-connect plinth and the panel’s chassis, see
2indrawingabove.
2. Connect a 6 or 4 mm2wire or grounding braid between the panel’s chassis and
the closest grounding point on the door, see 3 in drawing above.
3. Connect a strong but short grounding braid between the door and the device
cabinet, see 4 in drawing above.
4. Twist the cables onto the 24 V DC feed, see 5 in drawing above.
2 turns around the ferrite core provide 4 times the suppression of 1 turn.
3 turns around the ferrite core provide 9 times the suppression of 1 turn.
A ferrite core suppresses disturbances to the 24 V feed, see 6 in drawing above.
Note:
The grounding wires should be short and the conductor should have a large area.
A long, thin grounding wire has a very high impedance (resistance) athigh frequencies
and will not guide disturbances to the ground.
Multi-wire conductors are better than singlewireconductorswiththesamearea.
A braided conductor wire with the same area is even better. The best is a short, thick
grounding braid.
Beijer Electronics, MAEN812E 17

Additional Installation Tips
6.2 Ethernet Connection in the Panel
1
2
3
4
5
1-1
2-2
3-3
8-8
RJ45
RJ45
RJ45
RJ45
RJ45
RJ45
RJ45
RJ45
Industrial Ethernet
Operator panel
Operator panel
Operator panel
Operator panel
Shielded
Short and
unshielded
0.1 uF
250 V
5351
In some industrial units for Ethernet, the RJ45 contact’s shield is connected to the
chassis via a capacitor, see 1 in drawing above.
The operator panel’s Ethernet shield is directly connected to the chassis, see 2 in
drawing above.
1. Check whether the other Ethernet unit has its shield directly grounded or
grounded via a capacitor.
Note:
In many cases, connecting the shielded Ethernet cabling to the chassis at both ends is
inappropriate. Hum or grounding loops can occur. Unshielded cabling may even result
in fewer communication errors.
A good solution may be to use a shielded Ethernet cable, but to connect the shield
at one end only.
One option is to break the shield, see 3 in drawing above.
A more elegant method is to expand the shielded Ethernet cabling with a piece of
unshielded Ethernet cable, see 4 in drawing above.
You can ground the shield via an external 0.1 µF/250 V plastic capacitor, see 5 in
drawing above. This will connect the HF transients to the ground.
Beijer Electronics, MAEN812E 18

Additional Installation Tips
6.3 To Achieve Better EMC Protection
•Use shielded cables for RS232 communication.
•Use twisted pair and shielded cabling for RS422 and RS485.
•Use the cabling intended for the bus type; Ethernet, Profibus, CC-Link,
CAN, Device Net etc.
•Install and connect according to applicable specifications for the relevant bus
standard.
•Use shielded cabling for Ethernet, preferably with foil and a braided shield.
•D-sub covers should be shielded, and the shield should be connected to the
cover 360° where the cable enters.
•Connect the shield at both ends.
Shielded cable
Not same potential
Ground plane 1 Ground plane 2
Ground plate Ground plate
in another building
0.1 uF/250 V
5352
With longer distances, there is a risk that the ground potential may be different.
In that case, the shield should only be connected at one end. A good alternative
is to connect the other end of the shield to the ground via a 0.1 µF/250 V plastic
capacitor. Both ends are then connected to the ground in terms of HF, but only
connected to the ground at one end in terms of LF, thus avoiding the 50 Hz
grounding loops.
Metal cabinet Metal cabinet
Terminal or connector Terminal or connector
EMC cable gland Plastic cable gland
Shielded cable Shielded cable
Short distance
Cable clamp
in steel
5353
1. UseanEMCcableglandorregul
ar plastic cable gland, remove the outer jacket
andconnecttheshieldtotheinstallation plate with a 360 ° metal cable clamp.
2. Place the 24 V DC and communications cabling in one cable trunk/cable duct
and 230/380 V AC in another. If the cables need to be crossed, cross them at
90 ° only. Avoid combining the cabling for stronger 24 V DC outputs with
the communication cabling.
Ferrite cores that are snapped onto the shielded cabling may remove minor
disturbances. Large ferrite pieces that are snapped onto unshielded cabling and
where the wires go 2-4 times around the cores are approximately 5-25 times more
efficient.
Beijer Electronics, MAEN812E 19

Additional Installation Tips
6.4 Ambient Temperature
The maximum ambient temperature for the operator panel is provided in the
specifications. The ambient temperature refers to the temperature in the device
cabinet which cools the panel’s electronics.
Operator
panel
Power
Power
Power
30 °C outside
To p
50 °C inside
Bottom
40 °C inside
Middle
45 °C inside
Airflow
Axial fan
120 x 120 mm
5354
Inmostcases,theambienttemperaturefortheoperatorpanelissignificantly
higher than the device cabinet’s ambient temperature.
If the cabinet is tall and there are a number of heat-generating devices, the
temperature at the top of the cabinet will be considerably higher than the
theoretical temperature increase that would be expected. All electronics are
sensitivetoheat. Thelifespanofanelectro
lytic capacitor is cut in half with an
8-10 °C increase in temperature. A 15-20 °C temperature increase results in a
quarter of the lifespan etc.
Rittal has a good program for estimating the anticipated average temperature in
the cabinet as well as a large program for controlling the temperature in the device
cabinet.
An enamel-coated steel cabinet has a radiant heat value of 5.5 W/m2and degrees
C.
Installing a fan inside the cabinet will even out the temperature, while moving air
provides considerably better cooling than still air. A suitable fan is a 120 x 120 mm
axial fan, available in 24 V DC, 115 and 230 V AC.
Installthefansothatitsit
s in the cooler area and blows cold air against the operator
panel. If the fan is mounted at the top and sucks warm air upwards, the fan’s
ambient temperature will be higher, resulting in a shorter lifespan.
Agoodfanwithaball-bearingmountinghasanexpectedlifespanofatleast
40,000 hours (not a guaranteed lifespan) at 40 °C. This corresponds to at least 4
years of continuous use. If a thermostat is installed, the fan only operates when
needed.
Large graphic terminals draw only one fifth of the current when the background
lighting is off. The loss effect drops from e.g. 25 W to only 5 W.
An approximate value of the net power consumption for the operator panel can
be calculated by multiplying the supply voltage with the current drawn by the
operator panel. This is assuming that all supplied power is transformed to heat.
Beijer Electronics, MAEN812E 20