DISPLAY UNIT

PCU-6C Display Module

PCU-6C is a small, lightweight, driver display module designed to present the driver with the information he requires in a clearly legible and simple format via LED displays and LED lamps. Interface to a remote ECU is via a synchronous serial communications interface (clock, data, strobe and 2 brightness signals).

Electrical

· Supply Voltage (VDD) 4.8 to 5.5V DC*

· Supply Voltage not to exceed 6V continuous (unit is protected against transients)

· Supply Current quiescent (all LEDs off) 15mA typ.

· Supply Current operating (all LEDs on) 2.5A typ

· Input characteristics (all inputs)

- Operating input voltage range: 0 to 5V

- Maximum protected input voltage range: ±25V

- Input filter time constant: 1.25µs

- Input termination: 5.2kohm pull up to VDD supply input

- Input voltage low threshold 2.25V max (@VDD=5V)

- Input voltage high threshold 3.15V min (@VDD=5V)

* Reverse polarity may cause permanent damage if the host ECU 5V regulator does not have suitable overload protection

Electro Magnetic Compatibility

· Complies with the essential protection requirements of 2004/108/EEC

Mechanical

· Hard black anodised aluminium case

· Approximately 100g

Application

· Data display

Connection Definition

· Integral sealed, motorsport connector:

HES.1F.308.XLDP

· Flying lead connector:

PES.1F.308XLC

· Connection

Pin 1	+5V Input supply
Pin 2	LED Indicator Brightness
Pin 3	Serial Data In
Pin 4	Digital Ground
Pin 5	Clock
Pin 6	Strobe
Pin 7	LED Display Brightness
Pin 8	Serial Data Out

Environmental

· Splash resistant to standard motorsport fluids

· Lid has a rubber seal, case fixings are sealed with silicone sealant

· Maximum humidity 100%

· Operating temperature 0 to 70°C

· Storage Temperature -25^°Cto 85°C

· Vibration 100 to 1000Hz, all axes, 24 hours

· Vibration isolation is recommended

Display

· Central Numeric Display area

A single digit, fitted centrally, indicating gear number. Size: 14.22mm high by 8mm wide. This is 7-segment red with right hand decimal point.

· Left and Right Alphanumeric Display areas

Two smaller 4 character displays flanking the central digit. Each digit is 10.16mm high by 6mm wide. These are alphanumeric ‘starburst’ red LED displays with a right hand decimal point.

· Warning/Marshalling LEDs

Two high intensity red , two high intensity yellow and two high intensity blue LED indicators positioned at the extreme left and right of the unit.

· Shift LEDs

A horizontal bar of 15 high intensity LEDs at the top edge of the assembly. The 5 left hand LEDs (1-5) are high intensity green, the 5 middle LEDs (6-10) are high intensity red, and the 5 right hand LEDs (11-15) are high intensity blue.

· The intensity of the warning and shift LEDs are controlled by the LED Indicator brightness signal, while the intensity of the LED displays are controlled by the LED Display brightness signal. These digital inputs are driven with a PWM (Pulse Width Modulated) signal at approximately 200Hz, to control the intensity.

· If either of the brightness signals is left unconnected then they are pulled such that maximum brightness is achieved.

· A grey acrylic circularly polarised anti-glare front screen covers the alphanumberic and 7-segment LED displays. This enhances the contrast between light from the display and incident light due to polarised filters absorbing back reflected light.

· The LEDs on the front face of the unit are covered with a grey velvet polycarbonate label with clear windows.

Description

PCU-6C (integral connector)

Order Code

O 030 020 010 000

Description

PCU-6C (flying lead)

Order Code

O 030 020 010 001