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MAEN017F, 2013-09
iX T10A
Installation Manual
English
Foreword
Installation manual for iX T10A
Foreword
All 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 iX Developer 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 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 iX Developer reference manual for further information.
Order no: MAEN017F
Copyright © 2013-09 Beijer Electronics AB. All rights reserved.
The information in this document is subject to change without notice and is provided as available at the time of printing. Beijer Electronics AB, including all its group companies, reserves the right to change any information without updating this publication. Beijer Electronics AB, including all its group companies, 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, including all its group companies, are not responsible for modified, altered or renovated equipment. Because the equipment has a wide range of applications, users must acquire the 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 legislation in respect to configuration and safety. Only parts and accessories manufactured according to specifications set by Beijer Electronics AB, including all its group companies, may be used.
BEIJER ELECTRONICS AB, INCLUDING ALL ITS GROUP
COMPANIES, 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 REMEDY SHALL
BE AT THE SOLE DISCRETION OF BEIJER ELECTRONICS AB,
INCLUDING ALL ITS GROUP COMPANIES.
Beijer Electronics, MAEN017F
Contents
Contents
1 Safety Precautions ....................................................... 4
General ........................................................... 4
UL and cUL Installation ......................................... 4
During Installation .............................................. 6
During Use ....................................................... 6
Service and Maintenance ........................................ 6
Dismantling and Scrapping ..................................... 6
Appearance of Air in Touch Screen ............................. 7
2 Installation ............................................................... 8
Space Requirements ............................................. 8
Installation Process .............................................. 9
Connections to the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Other Connections and Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3 Technical Data ........................................................... 12
4 Chemical Resistance .................................................... 14
Metal Casing ..................................................... 14
Touch Screen and Overlay ....................................... 15
5 Operator Panel Drawings .............................................. 17
Connectors ....................................................... 17
Communication Ports ........................................... 17
iX T10A Outline ................................................. 19
6 Additional Installation Tips ............................................ 20
Grounding the Operator Panel ................................. 20
Ethernet Connection in the Operator Panel ................... 21
To Achieve Better EMC Protection ............................. 23
Ambient Temperature ........................................... 24
Safety ............................................................. 25
Galvanic Isolation ................................................ 26
Cable and Bus Termination RS485 ............................. 27
Beijer Electronics, MAEN017F
Safety Precautions
1 Safety Precautions
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.
Do not use the operator panel in an environment with high explosive hazards.
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.
Never allow fluids, metal filings or wiring debris to enter any openings in the 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, flush with plenty of water and get medical attention.
The figures in this manual serves an illustrative purpose. Because of the many 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 UL and cUL Installation
Caution:
This section is only valid for UL labeled iX T10A panels.
•
This equipment is suitable for use in Class 2 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].
Beijer Electronics, MAEN017F
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Safety Precautions
•
All devices have to be supplied by a Class 2 power supply.
Warning:
Do not disconnect equipment unless power has been removed or the area is known to be non-hazardous
•
For Canada also AVERTISSEMENT – 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.
Warning:
Do not replace expansion unit unless power has been switched off or the area is known to be non-hazardous.
•
•
This product contains a battery; this must only be changed in an area known to be non-hazardous.
Replace the battery with a BR 2032 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.
•
•
•
•
For use on a flat surface of a type 4X enclosure indoor use only.
Use 75 degree conductors only
Use copper conductors only
To make wiring connections to the power supply connector, follow the table with cable and torque specifications below:
•
Terminal Block No.
X1/X100 Phoenix connectors
X1/X100 Anytek connectors
Wire Size AWG
AWG 30–12
AWG 24–12
TQ Lb.In.
5–7
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, MAEN017F
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Safety Precautions
1.3 During Installation
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–
–
–
–
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 too much force or sharp objects when touching the keys, touchscreen etc.
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.
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Safety Precautions
1.7 Appearance of Air in Touch Screen
•
The layer structure of the touch screen contains air and in rare cases appearance of bubbles can arise. This is purely cosmetic and does not affect any functionality of the panel. The appearance can occur under certain environmental conditions such as temperature, humidity, and atmospheric pressure.
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2 Installation
2.1 Space Requirements
•
•
Maximum installation plate thickness: 8 mm
Space requirements in millimeters when installing the operator panel:
100
Installation
50 50 228
100
280
Note:
The dimensions on the drawing are not proportional.
100
Beijer Electronics, MAEN017F
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Installation
2.2 Installation Process
•
The following is needed:
A Phillips/slot screwdriver
1. Unpack and check the delivery. If damage is found, notify the supplier.
Note:
Place the operator panel on a stable surface during installation.
Dropping the panel or letting it fall may cause damage.
2. Use the cut out dimensions that are included on the outline drawing, found in section
and in the
table, to cut a correct opening in the cabinet. A separate cut out drawing is available for download from the Beijer Electronics web site.
3. Secure the operator panel in position using all the fastening holes and the provided brackets and screws:
x 8 0.5 - 1.0 Nm
Beijer Electronics, MAEN017F
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Installation
4. Connect the cables in the specified order, according to the drawing and steps below.
Caution:
•
Ensure that the operator panel and the controller system have the same electrical grounding (reference voltage level), otherwise errors in communication may occur.
•
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 voltage and polarity of the power source is correct.
•
Use only shielded communication cables.
•
Separate high voltage cables from signal and supply cables.
B
Power
Controller
RS232/
RS422/
RS485
24V DC
C
D
A
24V DC
Ethernet
–
–
–
–
Connect cable A.
Connect cable B, using an M5 screw and a grounding conductor (as short as possible) with a cross-section of minimum 2.5 mm
2
.
Connect cable C.
Connect cable D. The recommended cross-section of the cable is
1.5 mm
2
.
5. Carefully remove the laminated film over the operator panel display, to avoid static electricity that could damage the panel.
Note:
Only for iX T10A panels with part number 630000301:
When connecting the operator panel to the power outlet for the first time, make sure not to interrupt power for a minimum of 48 hours in order to charge the battery completely. After that, the battery may be charged partly during a shorter period of time.
Beijer Electronics, MAEN017F
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Installation
2.2.1
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.
2.2.2
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, MAEN017F
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Technical Data
3 Technical Data
Parameter
Front panel, W × H × D 280 × 228 × 7 mm
Cut out dimensions,
W × H
Mounting depth
262 × 209 mm
44 mm (144 mm including clearance)
Standalone mounting VESA 75 × 75
Note: Maximum screw length for VESA mounting is 4 mm.
Usage of longer screws may lead to damage.
Front panel seal
Rear panel seal
Touch screen material
Touch screen operations
Reverse side material
Frame material
IP 65
IP 20
Powder-coated aluminum
iX T10A
Polyester on glass, resistive.
Overlay: Autoflex EBA 180L
(1)
.
1 million finger touch operations
Weight
Serial port for
COM1 RS232 and
COM2 RS422/RS485
Serial port for
COM3 RS232 and
COM4 RS422/RS485
Powder-coated aluminum
1.5 kg
9-pin D-sub contact with RS232 RTS/CTS, chassis-mounted female with standard locking screws 4-40 UNC
9-pin D-sub contact with RS232 RTS/CTS, chassis-mounted female with standard locking screws 4-40 UNC
Ethernet
USB
Processor
External storage media
Flash memory
(application memory)
Memory RAM
1 × 10 Base-T / 100 Base-T (shielded RJ 45)
1 × USB Host 2.0, max output current 200 mA
400 MHz ARM9
1 × SD card (optional). Only compatible with the standard SD format with up to 2 GB storage capacity.
128 MB SSD (NAND Flash)
LED
Real time clock
Battery (2)
Power consumption at rated voltage
Fuse
128 MB (DDR2)
1 × blue/red software programmable
Yes (on chip)
Lithium battery type BR 2032, soldered or rechargeable battery (2) (Seiko Instruments Part No.
MS920-SE or similar), soldered
9.6 W
Internal DC fuse, 2.0 AT, 5 × 20 mm
Beijer Electronics, MAEN017F
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Technical Data
Parameter
Power supply
Display
iX T10A
+24 V DC (18-32 V DC)
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.
TFT-LCD with LED backlight. 640 × 480 pixels, 64 k colors
Active area of display, W × H
Operating temperature
211.2 × 158.4 mm
-10 °C – +60 °C
Storage temperature -20 °C – +70 °C
Relative humidity 5 - 85% non-condensed
Approvals and certifications
Information is available on the web site
www.beijerelectronics.com
(1)
See section
for more information.
(2) iX T10A panels with part number 630000301 use a rechargeable battery. All other versions use a BR 2032 battery.
Beijer Electronics, MAEN017F
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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%
Citric acid 10%
Diesel
Distilled water
Edible oil
Fuel oil
Hydrogen peroxide 3%
Phosphoric acid 4%
Phosphoric acid 10%
Sea water
Sodium chloride 2%
Sodium chloride 20%
Sulphuric acid 20%
Tap water
The powder paint shows limited resistance to the following chemicals at room temperature:
Butanol
Hydrochloric acid 5%
Isopropyl alcohol
Na-hypochlorite 10%
Nitric acid 3%
Nitric acid 10%
Phosphoric acid 43%
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.
The powder paint shows little or no resistance to the following chemicals at room temperature:
Acetic acid, conc.
Acetone
Ammonia 5%
Ammonia, conc.
Ethyl acetate
Methyl-ethyl ketone
Nitric acid 30%
Phenol
Sodium hydroxide 5%
Sodium hydroxide 30%
Toluene
Trichlorethylene
Xylene
97 octane unleaded petrol
98 octane leaded petrol
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Chemical Resistance
4.2 Touch Screen and Overlay
4.2.1
Autoflex EBA 180L
Autoflex EBA 180L covers the overlay surrounding the touch screen.
Solvent Resistance
Autoflex EBA 180L withstands exposure of more than 24 hours duration under
DIN 42 115 Part 2 to the following chemicals without visible change:
Acetonitrile Diesel Downey / Lenor (1) Phosphoric acid (<30%)
Ajax / Vim in solution
Alkalicarbonate solution
(1)
Ammonia (<40%) (1)
Acetic acid (<50%)
Ethanol
Glycerine
Glycol
Gumption (1)
Potassium ferricyanide
Potassium hydroxide (<30%)
Pure Turpentine
SBP 60/95 (1)
Ariel powder in solution (1)
Bleach
(1)
Hydrochloric acid (<36%)
Castor oil
Caustic soda (<40%)
Cutting oil
Cyclohexanol
Diacetone alcohol
(1)
Linseed oil
Methanol
Nitric acid (<10%)
Paraffin oil
Persil powder in solution (1)
Petroleum spirit
(1)
(1) Extremely faint glossing of the texture was noted.
Sulfuric acid (<10%)
Tomato ketchup
Trichloroacetic acid (<50%)
White Spirit
Windex
Wisk
(1)
-
Autoflex EBA 180L withstands DIN 42 115 Part 2 exposure of up to 1 hour duration to glacial acetic acid without visible change.
Autoflex EBA 180L is not resistant to high pressure steam at over 100 °C or the following chemicals:
Concentrated mineral acids
Concentrated caustic solution
Benzyl alcohol
Methylene chloride
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Chemical Resistance
4.2.2
Touch Screen Surface
The touch screen surface on the operator panel withstands exposure to the following solvents without visible change:
Solvents
Acetone
Isopropanol
Toluene
4.2.3
Time
10 minutes
10 minutes
5 hours
Autoflex EBA 180L
It is recommended to use the Autoflex EBA 180Ltouch display protection film, that can be ordered from Beijer Electronics.
Solvent Resistance
Autoflex EBA 180L withstands exposure to the same chemicals as Autotex F157 or
F207 according to section
.
Outdoor Use
In common with all polyester based films, Autoflex EBA 180L is not suitable for use in conditions of long-term exposure to direct sunlight.
Beijer Electronics, MAEN017F
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Operator Panel Drawings
5 Operator Panel Drawings
5.1 Connectors
COM 1/2 LAN COM 3/4
1 2 3 4
Pos.
1
2
3
4
Connector
Power supply
COM 1/2
LAN
COM 3/4
Description
+24 V DC (18-32 V DC)
Communication Ports
1 × 10/100 Base-T (shielded RJ-45)
Communication Ports
5.2 Communication Ports
Pin
1
7
8
9
4
5
2
3
6
Serial port, 9-pin female
COM1 COM2
-
RS422 Tx+
RS485 Tx+/Rx+
RS232 RxD
RS232 TxD
-
GND
-
-
RS422 Rx+
GND
-
RS232 RTS
RS232 CTS
-
RS422 Tx-
RS485 Tx-/Rx-
-
-
RS422 Rx-
Serial port, 9-pin female
COM3 COM4
-
RS422 Tx+
RS485 Tx+/Rx+
RS232 RxD
RS232 TxD
-
GND
-
-
RS422 Rx+
GND
-
-
-
-
RS422 Tx-
RS485 Tx-/Rx-
RS422 RTS+
RS422 RTS-
RS422 Rx-
Note:
In order to utilize two communication ports on the same physical port, the Y-split cable
CAB109 must be used.
Drawing for external cable CAB109 (drawing # Z7100-029E) is available on the web site:
www.beijerelectronics.com
Beijer Electronics, MAEN017F
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Operator Panel Drawings
Note:
Only iX T10A panels with part number 630000301 are equipped with terminated
COM-ports.
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5.3 iX T10A Outline
Operator Panel Drawings
7 max. 8 mm
44
9
228
SD memory card slot
USB host
209 9
Note:
A Step CAD file is available on the web site
www.beijerelectronics.com
Beijer Electronics, MAEN017F
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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
Mounting plate in the cabinet Door
Operator panel
3
2
Power supply
1
24 V DC
Ferrite core
5
6
4
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 2.5 mm 2 wire between the operator panel’s quick-connect plinth and the panel’s chassis, see 2 in drawing above.
2. Connect a 6 mm 2 or 4 mm
2 wire or grounding braid between the operator 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. Minimum cross-section of the cable is 2.5 mm
2
.
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.
Beijer Electronics, MAEN017F
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Additional Installation Tips
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) at high frequencies and will not guide disturbances to the ground.
Multi-wire conductors are better than single wire conductors with the same area.
A braided conductor wire with the same area is even better. The best is a short, thick grounding braid.
3
Short and unshielded
Industrial Ethernet
RJ45
RJ45
RJ45
1
RJ45
Operator panel
RJ45
2
Operator panel
RJ45
Operator panel
RJ45
Operator panel
RJ45
Shielded
0.1 μF
250 V
4
1-1
2-2
3-3
8-8
5
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.
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Additional Installation Tips
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.
The shield can be grounded via an external 0.1 μF/250 V plastic capacitor, see 5 in drawing above. This will connect the HF transients to ground.
Beijer Electronics, MAEN017F
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Additional Installation Tips
6.3 To Achieve Better EMC Protection
•
•
•
•
•
•
•
•
Initially, use the original cabling from Beijer Electronics primarily.
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.
Ground plate
Ground plane 1
Shielded cable
0.1 μF/250 V
Ground plane 2
Not same potential
Ground plate in another building
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 50/60 Hz grounding loops.
Metal cabinet
Terminal or connector
Metal cabinet
Terminal or connector
Cable clamp in steel
EMC cable gland
Shielded cable
Plastic cable gland
Shielded cable
1. Use an EMC cable gland or regular plastic cable gland, remove the outer jacket and connect the shield to the installation 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.
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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 operator panel’s electronics.
Operator panel
Top
50 °C inside
Power
30 °C outside
Power
Middle
45 °C inside
Power
Axial fan
120 x 120 mm
Airflow
Bottom
40 °C inside
In most cases, the ambient temperature for the operator panel is significantly 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 sensitive to heat. The lifespan of an electrolytic 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/m
2 and degrees
C.
Installing a fan inside the cabinet will even out the temperature, while moving air provides considerably better cooling than still air.
Install the fan so that it sits 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.
The operator panel’s loss effect = supply voltage x current. Virtually no power goes to external users and no loss effects due to inputs.
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Additional Installation Tips
6.5 Safety
Most of the operator panels are fed with 24 V DC.
Power supply
230 V AC to 24 V DC
1
+24 V
0 V
Operator panel
4
Power supply
230 V AC to 24 V DC
Operator panel
2
+24 V
0 V
4
Distance?
3
Power supply
230 V AC to 24 V DC
4
+24 V
0 V
230 V AC
Operator panel
COM1
Small controller with expansion unit
Ch0
Ch1
COM100
Ch100
Ch101
5355
If a power supply that meets safety standards is used and only feeds the operator panel, there is no problem. See 1 in drawing above.
However, if a 24 V unit that also feeds other units is used, there is reason to be cautious, see 2 in drawing above. The operator panel does not have insulation that meets safety requirements in the event of a potential short circuit between
230 V AC and 24 V DC. It is assumed that the 24 V feed is secure, for example,
SELV according to EN 60950 (protection against electric shock) and UL 950.
Example:
Here is an example that explains why a secure 24 V DC feed can be ruined by mixing
24 V relay contacts with 230 V AC relay contacts in a smaller controller. Check that the clearances and creepage distances between 24 V DC and 230 V AC fulfill EN 60950 or
UL 950. If not, input a separate 24 V unit into the operator panel.
•
•
•
If there is a substantial distance between the relay contacts for 24 V DC and
230 V AC, it is OK to use the same 24 V devices for all feeds. See 3 in drawing above.
Connect 0 V on the 24 V feed to the ground, see 4 in drawing above. This offers three advantages:
Safety is increased. The 24 V feed will not be live in the event of a faulty connection or short circuit between 0 V (24 V) and 230 V phase.
Transients on the 24 V feed are connected to the ground.
No risk that the 24 V feed is at a high level in relationship to the ground. This is not unusual since there is high static electricity.
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Additional Installation Tips
6.6 Galvanic Isolation
Internal electronic
Filter
DC/DC galvanic isolation
+24 V DC
0 V
VCC
0 V (GND)
1.5 m
RS422/485 RS232
USB USB
Ethernet
DC/AC
CFL
The operator panel has galvanic isolation against the 24 V DC feed but no galvanic isolation between the communication ports for RS232, RS422/485 and USB.
Only the Ethernet connection has galvanic isolation.
Printer
PC
*
Operator panel Modular controller
Power CPU COM COM2
RS422
*
RS232
*
USB
* * *
*
Different ground potential
*
= Internal 0 V (GND) connection
*
PC
*
When a PC is connected to the operator panel, the panel’s internal 0 V (GND) will be connected to the protective ground via the PC.
A number of USB devices can have the shield connected together with the protective ground. Here, the operator panel’s 0 V (GND) is connected to the protective ground when, for example, a USB memory stick, keyboard or similar device is plugged in.
If a number of units are connected that have a 0 V and a ground connection, and these are connected to various grounding points, there is a substantial risk of problems. Grounding currents go through communication cables, the rear plate of the controller, and internally in the operator panel, and can cause errors.
Use external units to improve communication and achieve galvanic isolation.
Westermo has good industry-standard insulators that are also insulated from the
24 V DC feed.
Note:
It is very important to make sure that the 24 V feed in the external insulation unit is not connected to one of the communication outlets. If it does not have 100% insulation against the 24 V feed, disturbances and grounding currents from the 0 V on the 24 V side will disrupt communication.
Using this type of unit solves one problem but creates a larger problem! A substandard installation may work now, but problems may arise when other devices are connected.
Beijer Electronics, MAEN017F
26
Additional Installation Tips
6.7 Cable and Bus Termination RS485
•
•
•
If maximum transfer distance and maximum transfer speed is needed, shielded and twisted pair cable should be used. The mutual capacitance may not exceed 52.5 pF/m, and the cable area should be at least 0.25 mm
2
(AWG 24).
0 V, the reference voltage for communication should be included in the cabling. With two-way communication use two pairs; one pair for communication and one pair for 0 V.
The shield must be grounded at one end. The other end is usually grounded, but with longer distances or when there is a difference in the ground potential, the shield should be connected to the ground via 0.1 μF/250 V plastic capacitor to prevent ground current in the braided shield. A number of manufacturers recommend that the shield be grounded at each node. Various manufacturers have different systems for bus termination.
Depending on the recipients’ design, the bus wires may be on the same level or require pull-up or pull-down to ensure that no faulty signals are detected when the bus is in resting mode (all transmitters are disconnected).
Beijer Electronics, MAEN017F
27
Head office
Beijer Electronics AB
Box 426
201 24 Malmö, Sweden www.beijerelectronics.com / +46 40 358600
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Table of contents
- 4 1 Safety Precautions
- 4 General
- 4 UL and cUL Installation
- 6 During Installation
- 6 During Use
- 6 Service and Maintenance
- 6 Dismantling and Scrapping
- 7 Appearance of Air in Touch Screen
- 8 2 Installation
- 8 Space Requirements
- 9 Installation Process
- 11 Connections to the Controller
- 11 Other Connections and Peripherals
- 12 3 Technical Data
- 14 4 Chemical Resistance
- 14 Metal Casing
- 15 Touch Screen and Overlay
- 15 Autoflex EBA 180L
- 16 Touch Screen Surface
- 16 Autoflex EBA 180L
- 17 5 Operator Panel Drawings
- 17 Connectors
- 17 Communication Ports
- 19 iX T10A Outline
- 20 6 Additional Installation Tips
- 20 Grounding the Operator Panel
- 21 Ethernet Connection in the Operator Panel
- 23 To Achieve Better EMC Protection
- 24 Ambient Temperature
- 25 Safety
- 26 Galvanic Isolation
- 27 Cable and Bus Termination RS