B57M02 B57S02 family segment displays provide fully functional display

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B57M02 B57S02 family segment displays provide fully functional display

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Master/Slave displays with integral driver power supply B57XXL family System Description
B57M02 B57S02 family segment displays provide fully functional display system that easily expanded suit user's requirements. Typical applications shop floor displays, security systems, public areas, gaming machines anywhere where high visibility segment display required. series solid segment type display with 57mm high characters wide viewing angle. displays based high efficiency with typical light output 60000ucd segment allowing viewability 20m. basic unit each family digit master display that contains driver interface circuitry. These stackable with digit slave board provide digits unit. simple serial (National MM5450 series) provides access each segments full versatility. Each digit features right hand decimal point. slave unit additional outputs that used annunciators. unit interfaces CMOS levels microcontroller connected digit controller board that allows user interface displays using SPI, RS232 serial protocols. master unit pull down jumper that permanently enable communication bus, thereby allowing wire operation. These devices feature filters allowing operation across long wiring looms. Faster versions without filter also available (designation F)as parallel loaded version applications. master display features regulated power supply that allows units work from 11.5 13.5 (nominally volt supply line. displays driven direct drive system thus minimising spurious radiation flicker sometimes noticeable with scanned displays. serial interface consists clock, data enable line allowing more than master present serial bus. Interfacing slave board done using connector that provides drive signals power. brightness altered adding resistance across board terminal pins. slave board supplied with necessary master slave cable. B57XX family displays provide simple cost effective implementing large digit segment characters offers ease flexibility increasing number digits adding digit stackable slave unit. board drivers relieve system overhead driving multiplex display whilst serial minimises requirement. utilising digit controller board (BIF-) display driven RS232 (R), serial busses allowing simple connection made wide variety host devices. on-board power regulators allow poorly regulated supplies used. Board dimensions 104mm 73mm.Overall depth 35mm with depth behind panel being 20mm. Connections molex crimp header plug 0.1inch pitch. Power consumption 500mA with LEDs Operating temperature range degrees ambient. mounting post each corner allows screws securing device.
Nexus Machines reserves right alter withdraw product specification characteristics without prior notice time line with product development. Nexus Machines sole exclusive warranty that stated warranty article conditions sale. Although every effort made ensure this data accurate liability accepted errors omissions that affect product. Week4902
Segment Designation
number
Segment
Digit
number DIGIT
Segment
Digit
DIGIT SLAVE
DIGIT
DIGIT MASTER
Nexus Machines reserves right alter withdraw product specification characteristics without prior notice time line with product development. Nexus Machines sole exclusive warranty that stated warranty article conditions sale. Although every effort made ensure this data accurate liability accepted errors omissions that affect product. Week4902
Functional Description (master unit)
master control unit contains driver regulated power supply serial interface filter circuits along with displays mounted reverse side. also connectors which enable connection serial slave display unit. Power applied header volts This regulated volts linear regulator. this voltage that used drive current through series connected LEDs. There LED's segment. decimal point LEDs series. regulator mounted heatsink which provides sufficient cooling when providing power master slave board with LED's lit. However care should exercised supply voltage rises above +12v full load this could (depending ambient temperature) cause excessive dissipation subsequent thermal shutdown regulator. regulator series inductor suppression, supply decoupling PCB. display driver MM5450N. This chip features "SPI" like serial interface, constant current sinks wide supply operating voltage. Each segment master display connected current sink. remaining outputs pinned ribbon header connection slave display. display driver multiplexed type. serial consists clock, chip enable data. chip enable held whilst data synchronously clocked into device. pins board allow chip enable held permanently thus reducing interface wire bus. However noise cause spurious transitions clock data lines these long length recommended that chip enable used available. Each segment display connected constant current channel transistor. These outputs programmed resistor provide around current segment. displays common anode type. Only driver outputs required segment displays. remaining used annunciators pinned header slave board. brightness externally modulated connecting external resistance across brightness header pins. this display blanked dimmed required. Timing diagrams shown figure Segment digit information display shown table provide high noise immunity degree transient protection when driving displays from long lines, board filter circuits (1st order clock, data chip enable lines. These filters compatible with range driver interface decoder boards. filters have time constant around 10.4 which limit display update rate around writes second. Note that this equivalent 1000 digits second digits altered each write.
Nexus Machines reserves right alter withdraw product specification characteristics without prior notice time line with product development. Nexus Machines sole exclusive warranty that stated warranty article conditions sale. Although every effort made ensure this data accurate liability accepted errors omissions that affect product. Week4902
Header outs master slave boards.
Master/slave interconnect header. ribbon)
PIN#
SIGNAL +8.6
PIN#
Master host header PIN# SIGNAL Chip enable (active low) Data Clock (positive edge triggered) +12v
Slave annunciator header PIN# SIGNAL +8.6
Nexus Machines reserves right alter withdraw product specification characteristics without prior notice time line with product development. Nexus Machines sole exclusive warranty that stated warranty article conditions sale. Although every effort made ensure this data accurate liability accepted errors omissions that affect product. Week4902
Interface timing
Clock high period Clock period rclk rising edge Data stable before edge
Note: first data start bit. always logic followed bits containing segment data, bits alarm data final clock latch data into driver. Timing information given with filter circuit. maximum frequency driver Khz. Please contact supplier faster versions.
Nexus Machines reserves right alter withdraw product specification characteristics without prior notice time line with product development. Nexus Machines sole exclusive warranty that stated warranty article conditions sale. Although every effort made ensure this data accurate liability accepted errors omissions that affect product. Week4902
Slave Unit
slave board contains segment header, power supply components, annunciator header reverse mounted display. segment header connects master short (max 100mm) ribbon cable (supplied with slave board). annunciator header allows connection board annunciator LED's. These connected volt supply header (anode +8v) appropriate annunciator AN2. recommended that series connected zeners used drop voltage that appears across driver value calculated follows. (LED forward voltage number LED's) 0.8. example single annunciator volts could zener rating follows: (1.8 volts. zener would dissipate (5.6 0.02) .112 watts 800mw device more than adequate. better select next lowest zener voltage rating order allow ageing more important, supply voltage variation.
Nexus Machines reserves right alter withdraw product specification characteristics without prior notice time line with product development. Nexus Machines sole exclusive warranty that stated warranty article conditions sale. Although every effort made ensure this data accurate liability accepted errors omissions that affect product. Week4902
Technical Specification
Parameter Supply voltage Supply Current luminosity update rate segment current Output matching Annunciator current Serial interface Logic Logic Input current Filter time constant Operating temperature 11.5
12.0
13.5
Units
1000
digits/sec
-+10
Volts Volts
*The unit will operate below 11.5 volts with reduced light output. LEDs will blank around volts data will retained below volt. **All Segments decimal points illuminated four digit display. Calculated percent variation (imax imin)/2
Nexus Machines reserves right alter withdraw product specification characteristics without prior notice time line with product development. Nexus Machines sole exclusive warranty that stated warranty article conditions sale. Although every effort made ensure this data accurate liability accepted errors omissions that affect product. Week4902
Colour Green Yellow
Minimum 2.0mcd
Typical 6.0mcd 15.0mcd 6.0mcd
Colour
size
Manufacturers code B57M02-R B57M02-G B57M02-Y B57S02-R B57S02-G B57S02-Y
Green Yellow Green Yellow
57mm (2.4 57mm (2.4 57mm (2.4 57mm (2.4 57mm (2.4 57mm (2.4
Data prepared Nexus Machines White Swan House High Street Godstone Surrey Email site Technical support:
sales@nexusmachines.com www.nexusmachines.com
0906 1010
Please note that technical support line charged 1.00 minute
Nexus Machines reserves right alter withdraw product specification characteristics without prior notice time line with product development. Nexus Machines sole exclusive warranty that stated warranty article conditions sale. Although every effort made ensure this data accurate liability accepted errors omissions that affect product. Week4902

B57M02 B57S02 family segment displays provide fully functional display

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