Falcon HED261 Manual De Instrucciones página 3

This counter is in two variants, HED261-R with reflective display and HED261-T with LED
backlight. Connection is via 2 sets of 3 pins at 0.1 inch pitch, spaced as shown.
The unit is fixed to the panel using the two spring clips which are integral to the housing.
The unit is the correct way up when the pins are at the bottom.
It can be powered from a higher DC voltage using the external circuit shown. For a 5v
supply omit the regulator. Use the regulator for a supply in the range 8 - 30v. The
regulator accommodates the different current requirements for the reflective and backlight
models.
Note:
This product is ideally suited to battery powered applications. Should the product be used
in a circuit where an external power source is used, then the complete system will require
separate approval to meet the CE standards.
5V Regulator
Supply
Voltage
0.47 µF
5
Mount the 100nF (transient suppression) capacitor as close to the unit as possible.
The low speed input (pin 2) should always be used for contact closure because this is the
only input which contains de-bounce circuitry.
Optional Backlight
Ω
220 ¼W
3V
100nF
Low Speed Input
utilising integral
De-bounce Circuitry
2
Remote
Reset
4
Max Signal Voltage 18V
High Speed
6
1
3
4
5
Remote
Reset
100nF
CMOS/TTL
Pulses
Inputs
3