Omega Vehicle Security DPC10-CS Introduction, Front View, Rear View, Application, Mounting

INTRODUCTION

Your OMEGA DPCl 0-CS or DPCIO-CC is a counter with an eight-digit LCD display. A programmable scaler and decimal point allow for display in any engineering unit.

Plastic	FRONT VIEW
front panel-
sealed to	8-digit LCD
meet	display
NEMA-4X
Programming	I Reset/
	Programming
button
	button
	REAR VIEW

APPLICATION

You must make certain programming and wiring choices to accomplish your application. We recommend the following sequence:

1.Answer the following questions:

??W hat type ofsensor will be used?

??What engineering units should the counter be scaled to?

??How many pulses per item is the sensor providing?

??Is a decimal point needed on the display?

2.Calculate the scale factor.

MOUNTING

1 ‘~‘lnstall mounting clip

PROGRAM MODE

NOTE: To enter the program mode, you must connect a jumper between terminals 1 and 5 (see page 4). To leave the program mode, disconnect the jumper.

Screens

There are four program-mode screens in the DPCl 0-CS and DPClO-CC. Upon entering the setup mode, thecounterwill

display screen 1. Press and hold the 141 key while repeatedly pressing them key to advance to successive screens.

,

OPERATION

Add/Subtract Counting

There are two count input terminals on the rear of the totalizer. Count pulses entering Input A (terminal 3) cause the total to decrement (count down). Count pulses entering Input B (terminal 2) cause the total to increment (count up). The totalizer may start counting from zero, when reset, or may start from a user-programmed offset value. The offset value is a positive number and may be up to six digits.

If only one of the count inputs is used, the totalizer becomes an up counter with a range of zero to 99,999,999, or a down counter with a range of zero to -9,999,999. If both inputs are used, the totalizer displays the difference count between the two inputs-counts at Input B are added, counts at Input A are subtracted. In this mode of operation, the totalizet ’srange is -9,999,999 to 99,999,999. Positive numbers are not indi- cated with a plus sign(+). Both inputs may occur simulta- neously, in which case the displayed total does not change.

Count Inputs

The DPClO-CS has hi-speed inputs and can accept pulses from solid state, current sourcing sensors at up to 10 kHz per input. The sensor must supply at least +2.0 V dc, but not more than +28 V dc to the input. Counts are entered on the positive-going edge of the pulse.

The DPClO-CC has low speed inputs and can accept pulses from solid state, current sinking sensors or contact closures to ground at up to 20 Hz per input. These inputs are internally pulled up to +3 V dc. The sensor must be capable of sinking current from the input to bring the input voltage down to +0.4 V dc or less. Counts are entered on the negative-going edge of the pulse.

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