HANOVER DISPLAYS LIMITED
Exterior LED Sign System Manual
Hanover Displays Ltd, Unit 24, Cliffe Industrial Estate, Lewes, East Sussex, BN8 6JL. Tel: +44 (0)1273 477528 Fax: +44 (0)1273 407766 0020/54/0156/G
© COPYRIGHT HANOVER DISPLAYS LTD 2009 The copyright of this document is vested in Hanover Displays Ltd and the document is issued in confidence for the purpose only for which it is supplied. It must not be reproduced in whole or in part or used for tendering or manufacturing purposes except under an agreement or with the consent in writing of Hanover Displays Ltd and then only on the condition that this notice is included in any such reproduction. All trademarks are recognized.
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Contents INTRODUCTION Contact list, Service Engineers-----------------------------------Introduction & LED Sign Types-----------------------------------How an outside LED sign works----------------------------------7611 Processor - Sign Block Diagram---------------------------7524 Processor - Sign Block Diagram --------------------------Sign Components-----------------------------------------------------7611 Sign Processor PCB Layout---------------------------------7524 Sign Processor PCB Layout--------------------------------7517 / 7518 / 7564 Internal Sign Boards-------------------------
4 5 6 7 8 9 10 11 12
SIGN INSTALLATION Sign System Wiring---------------------------------------------------Wiring Options----------------------------------------------------------Cables--------------------------------------------------------------------Mounting LED Signs---------------------------------------------------
13 14-15 16 17-19
CONTROLLERS & CONTROLLER INSTALLATION ERIC+ and DERIC+--------------------------------------------------Controller Installation-------------------------------------------------
20 21
APPENDICIES & INFORMATION SHEETS A. Outside LED Signs Technical Specification-----------------B. Eric+ Sign Test Function Guide--------------------------------C. Eric+ Setting Destination No Guide---------------------------D. Deric+ Sign Test Function Guide------------------------------E. Deric+ Setting Destination No Guide-------------------------F. Connectors & Pins--------------------------------------------------
22 23 24 25 26 27
OL001 - 192x19 ------------------------------------------------------OL002 - 160x17 ------------------------------------------------------OL006 - 144x19 ------------------------------------------------------OL010 - 96x8 ------------------------------------------------------OL020 - 32x17 --------------------------------------------------------
28 29 30 31 32
TROUBLE SHOOTING Trouble Shooting -----------------------------------------------------Trouble Shooting Chart-----------------------------------------------
33 34
If you would like sign information sheets for your equipment please do not hesitate to contact Hanover Displays Ltd.
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INTRODUCTION Contact List, Hanover Displays UK (Head Office)
Gavin Williams Andrew Williams Ali Malallah Simon Braddick Steve Holland Teresa Drury Phil Sturgeon Tim Perrett Mike Siverns Alan Cressey Nick Robertson Antony Gapper Anthony Freeman Tristan Gillard
Managing Director
[email protected] International Sales Manager
[email protected] International Sales Executive
[email protected] Engineering Manager
[email protected] Sales Admin Manager
[email protected] Sales Co-ordinator
[email protected] R&D Manager
[email protected] Technical Services
[email protected] Advanced Projects Manager
[email protected] UK Sales Manager
[email protected] Marketing Manager
[email protected] Technical Engineer
[email protected] UK Sales & Service Engineer
[email protected] Quality Manager
[email protected]
Service Engineer: Steve Medhurst Richard Stringer
Service Engineer
[email protected] Service Engineer
[email protected]
Office Tel: Office Fax: E-mail:
+44 (0) 1273 477528 +44 (0) 1273 407766
[email protected]
Website:
www.hanoverdisplays.com
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Introduction & LED Sign Types The scope of this guide is to provide basic information regarding Hanover‟s LED sign systems. It has been written with all operators in mind and outlines the identification, installation and operation of the standard LED sign units supplied by Hanover Displays Ltd. Note this is not intended as a detailed technical document. Messages are programmed using Helen, Hanover‟s Windows-based sign editor. A message database can then be downloaded from a suitable computer to the Deric+ data-loader or Keylo, which is then used to load the database automatically onto the driver‟s controllers on the buses. A laptop can also be used to load directly into the vehicle controller Sign Destination Types: (Examples) Product Code (Hanover part no).
Description dots across x dots high
Max. character height
OL001
192x19
243 mm
OL002
160x17
225 mm
OL006
144x19
252mm
OL010
96x8
87 mm
OL020
32x17
226 mm
Maximum dimensions (length x height x depth) 1974mm x 352mm x 50mm 1646mm x 325mm x 50mm 1520mm x 335mm x 50mm 946mm x 185mm x 50mm 340mm x 325mm x 50mm
A range of display sizes are available. Should any further information be required, please contact Hanover Displays Ltd.
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How an Outside LED Sign Works Hanover Displays Daylight Viewable LED signs are built using high brightness amber LED‟s arranged in a matrix. The sign cases are fitted with an angled slat above each row of LED‟s, which improves display contrast on sunny days by providing some degree of shade for each LED so that reflection of sunlight from the LED bodies is minimized. The diagrams on the following 2 pages illustrate how the main electrical assemblies of an Outside LED sign are connected together. The heart of the sign is the processor board and this is available in two types. Signs built after January 2008 will contain the newer 7611 processor board and signs built before this date will contain the 7524 processor board (see appendix G on page 25 for further information). Each sign receives messages from the driver‟s controller via an RS485 communications link. The messages tell the signs what to display. A message intended for a particular sign is picked up by the sign processor board set to the same address as contained in the message. The sign processor converts the message into a set of control signals, which determine which LED‟s are to be illuminated on each of the display boards that the sign contains. These control signals are routed to the first display card via a ribbon cable. They are then passed from one display card to the next via a short 8-way ribbon cable. The brightness of the sign display is continuously controlled to ensure that the display is not too bright at night or too dim during the day. The sign continuously measures the level of ambient light falling on the display surface with a sensor and adjusts the brightness level accordingly. The electrical power for the sign is obtained from the main 24V supply of the bus. For Front and side signs 0V and 24V from the supply connect to the input terminals of the 7564 board. For smaller route no. signs the 0V and 24V from the supply connect to the input terminals of the 7612 board which is mounted directly to the 7611 processor board. Both the 7564 and 7612 boards provide over-voltage protection (from voltage transients) to all the other boards in the sign. The 7564 board allows even power distribution to the display bus bar (see diagram on next page) and minimises power rail voltage drops. The displays cards require two power supplies: a 3V supply (actually 2.6V) to drive the LED‟s and a 5V supply to feed the control circuits. The display cards require a significant amount of current at 3V and so there is an individual 7517 3V power supply card for each display board capable of providing over 10 amps at 2.6V. The amount of current required at 5V is much less and so in small signs can be provided direct from the 5V regulator on the sign processor board. In larger signs the display cards require more than the sign processor board can provide and so it is necessary to use the 7518 5V card which can supply up to 5 amps, more than enough for a large front sign. The filtered 24V flows from the 7564 to the 7518 card via the 5 way cable. The regulated 5V (from the 7518) then flows back along the 5 way cable on different conductors to the busbar via the 7564. The busbar therefore carries 0V, 5V and 24V to the chain of display boards. The 7517, 3v supply cards pick up their 0V, 5V and 24V supplies from this busbar and produce the high current 2.6V supply that each display card requires. Finally, 24V flows from the 7518 to the 7524 processor card The diagram on the following page shows the various functional blocks of a sign and how they are connected together.
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7611 Processor - Sign Block Diagram Front & Side Signs
Route No. & Small signs
Power input connection via 7564 Board
Power input connection via 7612 Daughter Board
RS 485 Comms Connections
0V Power 24V Input RS 485 Comms Connections
7612 Power Input Board
7611 Sign Processor Board Address Switch Control Signals
Power +24V 0V +5V
Ambient Light Sensor 14
7611 Sign Processor Board
7611 Control Sign Power Signals proces +24V 0V +5V sor Board
Address Switch
Ambient Light Sensor
8 Power Input 0V 24V
7518 5V Aux. Supply Board
7525 Board
Display Power Bus bar +24V +5V 0V
7xxx LED Display Card
8
Display Power Bus bar
+3V
+24V +5V 0V
+5V 0V
7xxx LED Display Card 7564 Super Moose Board
7517 3V Display Supply
8
+3V
+5V 0V
7517 3V Display Supply
8
7519 7xxx LED Display Card +3V
+5V 0V
7517 3V Display Supply
8
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7524 Processor - Sign Block Diagram
RS 485 Comms Connections
7524 Sign Processor Board Address Switch
Control Signals
Power +24V 0V +5V
14 Power Input 0V 24V
7518 5V Aux. Supply Board
8
7564 Super Moose Board
7xxx LED Display Card
+3V
+5V
7517 3V Display Supply
0V 8
7519 7xxx LED Display Card +3V
+5V
7517 3V Display Supply
0V
8
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Sign Components - Internal boards for LED sign Figure 1 shows the internal rear view of an LED sign. Figure 2 shows a more detailed view of the processor and power supplies. Figure 1. Display Board 4
Display Board 2
Display Board 3
Display Board 1
Position Jumper Links. Link shown on the right is set to 2. Each LED display board has a position selector jumper link. Looking from the rear of the sign, the rightmost board should be set for position 1, the next board to the left should be set to position 2 and so on.
Figure 2 7517 3V / 10 Amp Power Supply 7564 24V Power input connector on super-moose board
24/5/0V Power Connect or to 7518Display 5V Display Power Supply
Comms Connector 7524 LED Sign Processor Card Ribbon Cable to Display
NB: Super-moose & 5v power supply boards are not used on route number only signs (i.e. signs with only 1 display board).
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7611 - Processor board – Key component layout
Ribbon cable to 5v PSU board and/or LED display board/s
PCB board earth to sign case.
Ov input from sister board (if fitted).
Comms LED indicators LED 1 - Heartbeat LED 2 - Comms
5v PSU output, 24v output/input Address Switch This is a rotary switch, which sets the comms address number of the sign. Each sign size in a system has a different switch setting, typically: Front sign Side sign Rear No sign Further sign sizes if needed Not used Displays controller route number information on the sign
When the sign is powered up, both LED‟s come on together for a brief period. After this initialization phase, the LED‟s function is as follows:LED 1 turns on and off once per second continuously. This shows that the processor is running (i.e. not crashed).
0 1 2
LED 2 lights in the following four ways:
3-7 8-E F
OLED V1.06
Ambient light sensor input Use ONLY pins „IN‟ & „0v‟ Fitted link jumpers: A Enable low dim level B Enable 38k4 baud rate C n/a D Enable power limit E Self test JTAG interface (Factory/servicing use only)
Sign software “OLED” type + variant “V” – Version number Communications in & out
brief flash when the sign receives a valid comms message addressed to it. long flash if the sign receives a message with bad contents. permanently on if the sign has not received a valid message from the driver‟s controller within the previous 60 seconds. Very slow flash (means boot loader mode) if board not programmed with software or when carrying out software update procedure. 24v power input from sister board (if fitted).
Note that even with a static display, the sign processor and the Deric+ controller are continuously communicating with each other. Therefore if LED 2 is permanently on, this would indicate a fault. If there is a fault with the sign the following sequence will be displayed: Both heart beat & comms LED will turn on. The heart beat LED will switch off. The communications LED will switch off. The sequence will repeat until the power is removed.
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7524 LED Sign Processor Key Component Layout Jumper Links Usage of pluggable links:LK3 has five links which alter the software configuration:
LK3-A LK3-B LK3-C LK3-D
LK3-E
Heartbeat LED The 7524 sign processor is provided with two LED‟s which indicate its state. They are very useful for checking that the sign system is functioning correctly.
Enable low dim level Fit for 38400 Baud comms speed Not used Enable power limit Reduces the max possible brightness of sign display
LED 1 - Heartbeat LED 2 - Comms When the sign is powered up, both LED‟s come on together for a brief period. After this initialisation phase, the LED‟s function is as follows:-
Inserted after power up starts self test
Address Switch This is a rotary switch, which sets the communications address number of the sign. Each sign in a system has a different switch setting, typically: front sign side sign Rear route number sign
0 1 2
LED 1 turns on and off once per second continuously. This shows that the processor is running (i.e. not crashed). Software The standard variant of software fitted to the 7524 is “ELD” V then a number.
Note that even with a static display, the sign processor and the Deric+ controller are continuously communicating with each other. Therefore if LED 2 is permanently on, this would indicate a communications fault. If there is a fault with the sign the following sequence will be displayed: Both heart beat & comms LED will turn on The heart beat LED will switch off The comms LED will switch off
LED 2 lights in the following three ways: brief flash when the sign receives a valid comms message addressed to it. long flash if the sign receives a message with bad contents. permanently on if the sign has not received a valid message from the driver‟s controller within the previous 60 seconds.
The sequence will repeat until the power is removed.
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7517 - 3v power supply board 0 volt link 5 volt link input 24 volt link input 3 volt link output
7518 - 5v power supply board
Power input to board Communication output from 5v board to LED boards Power output to processor Communication between 5v board and processor 7564 - Super-moose board
24v link 5v link Empty
24volt power input
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SIGN INSTALLATION Sign System Wiring Overview 24V DC Power Feeds
A “Star” power wiring configuration is shown where each unit has its own power feed. Power cabling may also be „daisy chained‟ from one sign to the next.
24V DC Vehicle Supply
Cables and connectors at the cable end where power is fed in will carry a current equal to the total current for all the signs connected. Be careful to use appropriately rated fuses, cables and connectors!
Communications from Sign Controller to signs.
Connections to Sign Controller
30-3020-0002-00 HOUSING ONLY 30-3020-5002-00 HOUSING ONLY
NB: Eric comms pins are 1 Black - & 2 Red + Deric comms pins are 1-Red + & 2 Black 3-way plug is power
2-way plug is comms Standard communications connectors are shown, other connector options are available.
30-3005-5003-00 HOUSING ONLY
30-3021-5002-00 HOUSING ONLY
30-3005-5002-00 HOUSING ONLY
30-3021-0002-00 HOUSING ONLY
Standard power connectors are shown, other connector options are available.
Communications to the next unit.
IMPORTANT: For the gauge of cable needed for exterior viewable LED signs, please refer to cables section of this manual. The light sensor on the sign must be fully exposed to external light variations to function effectively.
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Wiring Options (Option 1) - Standard LED Sign Please refer to the diagram on the following page, which illustrates the system wiring. All signs are supplied with 2 communications cables: an input and an output. The only exception is on the rear sign, where typically only a communications input is necessary. There is a single power cable from each sign. See the diagram below: Standard power input wiring:
+ _
+ + +
Power cable from sign identified with label showing battery symbol
- -
24v DC supply (on with ignition)
(Option 2) If the LED sign is required to stay on after vehicle ignition has been turned off, ensure the power to the signs is wired before the ignition switch, e.g. to the master power switch. For further details on battery guard and bus reversing please refer to Helen software manual. Deric+ controller rear view
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Eric+ controller rear view
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Cables The following section applies to all power and communications cable used when installing a Hanover Displays Sign system Power Cables Power cables must always be insulated & correctly rated for the voltage & maximum power consumption of the sign they supply. The following table is a guide only. Always check the signs data sheet for its maximum current consumption before selecting and using power cables. Sign Type
Cable Type
Mono signs with 1-3 display boards (e.g. route number, side signs. Small front signs e.g. (160x17)
32/0.2 cable rated at 10 Amps.
OLxxx - Large front signs (e.g. 192x19, 144x19), COL - Multi coloured route no front signs COLxxxFC - Full Colour signs
16 AWG cable rated at 24 Amps.
Failure to use the correct cable rating may result in failure of the cabling and display signs, overheating and risk of fire. Important Note: If the power cabling for a sign system is „daisy chained‟ from one sign to the next, then the cables and connectors at the cable end where power is fed in will carry a current equal to the total current for all the signs connected. Be careful to use appropriately rated fuses, cables and connectors! Communications Cables The recommended cable for all RS485 communications connections is a pair of 10//0.254 mm (20 a.w.g.) tinned copper conductors, insulated with PVC and covered in a PVC grey outer sheath. (RS components 360958).
Under no circumstances should this cable be used to supply power to the LED signs.
All Cables must be selected so that their insulation is in accordance with the applications requirements for heat, fire and smoke resistance.
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Mounting LED Signs The positioning of the sign unit is extremely important for maximum legibility of the unit from all angles. LED signs should be mounted as close as possible to the vehicle glass. Hanover recommends that the front face of the sign should be no more than 5mm away from the vehicle glass. All signs should have fitted on their horizontal top and bottom faces, a precompressed sealant foam strip. Hanover recommends „ALFAS C‟ type foam, in 10mm width with a maximum expandable dimension of 15mm. A supplier of this foam is „qbm distributors (www.qbmdistributors.co.uk)‟.This foam seal will find its own level when released and create a seal between the sign & the window. On some variants of LED signs produced by Hanover, the sign is longer than the end of the metal louvers. In these instances the foam strip can also be applied to the two end vertical front faces of the sign. Masking the window Light Sensor Each LED sign contains a light sensor which is mounted on the front face of the sign either on the side, top or bottom.
The brightness of the display is adjusted according the level of ambient light falling on this sensor. The light sensor on the sign must be fully exposed to external light variations to function effectively. If the sensor is covered by masking on the window in front of the sign, the sign will not reach full brightness in direct sunlight.
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Viewing Angles Hanover signs are sufficiently well finished that masking of the window is generally unnecessary. The sign display area should be viewable from every conceivable angle, e.g front (head-on), side (from the pavement etc). Masking can reduce the visibility of the sign when the viewed from an angle. If masking is undertaken it should not be aligned to the display area, but should be enlarged to be at least to the outer dimensions of the sign case. If, for good reason the sign is not mounted as recommended with a minimum clearance from the window, then any masking must be correspondingly larger to prevent loss of visibility. Front signs As the majority of front signs are at least 1000mm or greater in length, Hanover recommend that all signs mounted in the front of the vehicle, are mounted using their top and bottom fixing points. This will ensure that the sign has support along its entire length. The sign can be mounted by it‟s side fixing points, however in this case it is strongly recommended that additional support is added to the bottom of the sign. Brackets Sign bracketry should be attached flush to the sign casework in such a manner as not to restrict the release of the sign displays rear panels. Brackets should be made of steel and have a thickness of no less than 3mm.
Fixings
Fixings
Support brackets Check positioning of light sensor within the display
Side and rear signs
IMPORTANT Do not mask too tight to the sign & ensure light sensor is fully exposed to external light variations
Side and rear signs, providing they are under 1000mm in length can be mounted by their side fixing points only. As with the front sign, sign bracketry should be attached in such a manner as not to restrict the release of the sign displays rear panels. The interior or exterior masking around the sign equipment must be sufficiently wider and higher than the sign itself to be able to view all the rows of dots from all reasonable angles. This will vary according to how close to the window the sign has been installed into the vehicle.
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Side sign / rear view
Support brackets (Usually black)
Fixings
Mounting Be careful to ensure that the ambient light sensor unit is not obscured by masking on the bus window. If the sign is longer than 1000mm it is supported by the fixing points at the top or bottom of the unit.
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CONTROLLERS & CONTROLLER INSTALLATION ERIC++ & DERIC+ The Eric++ and Deric+ control units essentially run the signs to which it is connected, communicating the messages that are to be displayed. Messages are transmitted via RS485 to each individual sign on any given vehicle. The standard Eric+ Controller is: E400F 2Mb of flash memory for storing programmed messages. The standard Deric+ Controller is: D200E 1Mb of flash memory for storing programmed messages. A radio slot version of the DERIC+ is available DLC200E with 1Mb of flash memory for storing programmed messages Sign integrated version of the radios slot DERIC+ DLC200E-SI Note that the final letter given in the product codes above, i.e. “E” or “F” refers to the size of flash memory. Product Code (Hanover part number)
Software
D200E (Deric+)
Std.
E400F (Eric+/++)
Std.
DLC200E (Radio slot Deric+)
DLC200E-SI (Radio slot Deric+ integrated into front ELD sign)
Description LCD display Two lines of 16 characters 3 button keypad 1 serial port & 1Mb memory Full graphic LCD driver display Full alphanumeric key-pad 4 serial ports available Up to 4Mb memory available Radio slot size LCD display Two lines of 16 characters 3 button keypad 1 serial port & 1Mb memory Built into front sign Radio slot size LCD display Two lines of 16 characters 3 button keypad 1 serial port & 1Mb memory
For further information on controllers refer to the Eric+ & Deric+ manuals on the Hanover Resource CD which is available free of charge from Hanover Displays Ltd.
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Controller Installation Mounting Position The controller can be flush mounted or boxed according to the type of vehicle or the end users preferences. The usual positions for the controller are: To the right or left hand side on the dash. Above the drivers head in the sign pod, Above driver‟s window or below the drivers window. The Controlller is not waterproof! Do not position the unit below an opening window, on a ledge where drivers may leave open drinks which may spill onto the unit or anywhere where water may get on or in the unit. Water Ingress is not covered by the product warranty.
Power and communication cables plug into the rear of the control unit so care must be taken to ensure enough space is provided. Easy access and visibility of the control unit for the driver should be taken into consideration when positioning.
Recommended position for the driver controller
Recommended position for the driver controller
Position Above driver‟s window.
Advantages This area usually has sufficient space to accommodate the control unit & the cabling and also allows easy access for maintenance.
Left or right on the dash.
Visibility & access to control unit is good. Wiring to controller is normally easy & servicing also.
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Disadvantages More awkward for drivers to change than a controller positioned lower and more difficult to view. Sufficient depth of space on modern vehicles is usually difficult to find.
Drivers Notes Warning: Drivers should never attempt to change controller whilst driving. Viewing and access to unit is very good but is not recommended whilst driving.
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Appendix A
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Appendix B
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Appendix C
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Appendix D
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Appendix E
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Appendix F
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Trouble Shooting If one or more signs are blank or illegible then follow the trouble shooting flow chart on the following page. Some general tips are also given below. Tips: If the controller is faulty this will usually be immediately apparent. For example, the driver‟s display may be blank or illegible, or there may be no response from the keypad. If you suspect a fault, simply replace the control unit with a new one. Use the Test Signs feature of the controller (see appendix B & D). This will help to identify if your problem is associated with power or communications connections to the signs. If all signs display the test pattern correctly then the problem is most likely related to the destination list loaded into the controller not being compatible with the signs check your list of signs in the Helen software editor to Make sure their switch settings match the sign system on the vehicle and the signs match the list. Check controller configurations are appropriately set for your type of list (e.g. for a destination list with a browse facility make sure the 10 digit click box is high lighted when downloading from Helen sign editor to your loader (Refer to Helen sign Editor manual for further information).
Remember! If in any doubt, please do not hesitate to contact Hanover Displays.
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START Apply Power to all sign/s and controller (24v)
Replace controller return to Hanover
Yes No
Step 1 - Has the controller powered up? Yes
Step 2 - Use the „Test Signs‟ function. Are all signs displaying the test message correctly?
Correct fault and return to step 1
Is 24V power reaching the controller?
No
All signs are not displaying the test message
No No
Does the controller contain a destination list? Yes
Does sign have a LED lit in its top left corner?
Some signs are not displaying the test message One or more signs are not displaying the test message across the full width of the LED display.
Is power is supplied to blank display board
System is performing correctly
Are all sign data ribbon cable(s) connected to blank LED board?
Yes Communications of sign may be faultyTBA
Correct fault and return to step 2 No No
Yes
Either a new destination list has been loaded which is not compatible with your vehicle sign system or a sign in your system has been changed to one of a different type. Check sign list downloaded corresponds to equipment on vehicle. Check your list of signs in the Helen software editor to make sure their size, type and switch settings match the sign system on the vehicle. Check controller configurations are appropriately set for your type of list (e.g. for a destination list with a browse facility make sure the 10 digit click box is highlighted when downloading from Helen sign editor to your loader (Refer to Helen sign Editor manual for further information).
Correct fault and return to step 2
Yes
Yes Yes
Sign Display blank or not updating?
Yes
No
No
No
Are LED‟s on Processor PCB lit correctly?
No Sign displays scrambled?
Is there 24V power supplied to the sign?
Are communications cables in and out of the sign correctly connected?
Yes
Select a valid destination message. Do signs display messages correctly? Note: If controller shows “Bad Destination” An invalid destination code has been entered - enter a valid number. It is also possible that the unit may have been downloaded with an incorrect or incomplete database file. If controller shows “Bad Memory Data” This normally indicates that the „flash‟ memory has failed - change the control unit.
No
Yes
Is communications cable between controller & signs correctly connected?
Is there a 24V supply Yes to all signs in the sign system?
No
Yes
Communications of first sign may be faulty and blocking communications to rest of signs. Bypass comms of first sign and return to step 2
Correct fault and return to step 2
Yes Replace Display Board & Return faulty board to Hanover
Are power input fuses OK & not blown Yes TBA
