Electronic pulse counter / Pulse counter + -

Detailed description

General specification of the pulse counter DS-72A:

2x 6 local display,

2x PRESET value,

2x OUT output relays,

2x SSout for controlling SSR relays.

Counts signals from mechanical switches, limit switches, inductive sensors approaching PNP/NPN and inputs from the incremental encoder.

Counting up/down.

Protection heslem.

Optional input frequency: 20, 50, 2500, 7500 Hz

Calibration constant: 0.00001.....9.99999

Optional decimal point: 0 / 0.0 / 0.00 / 0.000

Options function combinations: 7 input functions / 10 output functions:

addition,

subtraction,

addition/subtraction from two inputs simultaneously,

pause in counting/subtraction controlled by the second input,

negation input controlled by the second input,

addition/subtraction from the leading edge / falling edge / both edges simultaneously,

addition leading edge / falling edge countdown / negation function by the second input.

Adjustable "OFFSET" calculated value.

PRESET1 with the option of absolute/relative values.

OUT 2x relay: turned on after reaching the value and held until RESET, or pulse in the range 0.1.....999.9 seconds.

Remembers the value of the number of pulses and the state of the output relay OUT at the last power failure power and can be restored after the first power on again.

RESET be done via the button on the front panel or a signal to terminal RESET(17).

Can to display preset ½ values.

Memory EEPROM for storing settings.

Technical properties:

Dimensions / ​​opening: 72x72x94 mm / 67x67 mm

Display: 2x 6-digit 7-segment LED display.

Indicator LED: 5x: OUT1, OUT2, Finger1, Finger2, Batch

Inputs: 2x (Max: 7500 Hz, 5-30 V)

Selection NPN: connect the "npn select" terminal (13) to the "+12V" terminal (14) for connection NPN sensors connected to input Cp1(15) and Cp2 (16).

Reset input is always PNP.

For totem-pole encoder or PNP type sensors will have "npn select" not connected.

Types inputs: mechanical switch, inductive sensor PNP/NPN encoder output NPN/PNP/totem-pole.

Input frequency: 20, 50, 2500, 7500 Hz.

Reset signal: RESET terminal (17), at least 10 ms, + signal (only PNP) (5...30 V).

Outputs (OUT):

2x relay SPDT 250VAC, 2A, resistive load,

OUT1: terminals 6=COM, 5=NO, 7=NC

OUT2: terminals 9=COM, 8=NO, 10=NC

SSout 2x control SSR - NPN, 30V, 100mA max., terminal 18=SSout1, 19=SSout2, 20=GND

Power sensors: terminal (14) 12 VDC, 50 mA (max.), unregulated.

Power supply voltage: 100...240VAC, 50-60Hz.

Consumption power: < 8 VA

Operating temperature: -20°C ... +55°C

Above sea level height: <2000m

Notes for installation:

Use shielded and twisted signal cables and shielding connect to ground. Maintain all signal cables outside of circuit breakers, inductive loads, outside of devices/cables radiating electrical noise and power cables. Take preventive measures against environmental influences such as humidity, vibration, pollution, and high/low installation temperature.

Use the fuse (F250mA 250VAC) on the device's mains/power input.

To for power supply use appropriate cables. During installation, follow safety regulations.

Prefer the use of the option (Inpt = Phs1) for encoders,

Select (Freq = 20) for counting pulses of the mechanical ON-OFF switch.

Always select the minimum input frequency option that suits your application.

For Inpt = 1u2u, 1u2d, Phs2; the frequency of the input signal must be at most ½ the selected input frequency options, if both inputs are used.