Electronic pulse counter / Pulse counter

Detailed description

DS-48 panel pulse counter

(2x 4-digit displays: 1x counter, 1x target value)

General specifications of the DS-48 pulse counter:

2x 4-digit displays, 1x preset value,

1x output relay OUT,

clock/countdown counter

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

Password protection.

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

Calibration constant: 0.001.....9.999

Selectable decimal point: 0, 0.0, 0.00, 0.000

7 input functions / 9 output functions:

- Counting,

- countdown,

- addition/counting from two inputs simultaneously,

- counting/pause of counting controlled by the second input,

- negation of the input controlled by the second input,

- addition/subtraction from rising edge / falling edge / both edges simultaneously,

- addition on rising edge / subtraction on falling edge / negation of the function with the second input.

"OFFSET" adjustable of the calculated value

Output relay: activates upon reaching the value and remains until RESET or pulse within the interval 0.1.....999.9 seconds.

Stores the pulse count value and output relay status during the last power interruption and can be restored after the first power-on.

RESET via front panel button or signal on the RESET terminal (12).

EEPROM memory for storing settings.

Installation notes:

Use shielded and twisted signal cables and ground the shield. Keep all signal cables away from switches, inductive loads, devices/cables emitting electrical noise, and power cables.

Avoid environmental influences such as humidity, vibrations, dirt, and high/low temperatures.

Use a fuse (F250mA 250VAC) at the equipment's mains/power input.

Use an appropriate power cable. Follow safety regulations during installation.

Before the encoder, preferably use the option (Inpt = Phs1), select (Frequency = 20) for counting pulses from the ON-OFF mechanical switch,

select the optimal minimum input frequency for the application.

Per Inpt = 1u2u, 1u2d, Phs2; the input signal frequency must not exceed ½ of the selected input frequency if both inputs are used.

Pre Inpt = Phs4; the input signal frequency must not exceed 1/4 of the selected input frequency if both inputs are used.

Technical parameters:

Dimensions / Opening: 48x48x96 mm / 44x44 mm

Display: 2x4 digit 7-segment LED.

Number of inputs: 2 x (Max: 7500 Hz, 5-30 V)

Input type: mechanical switch, PNP/NPN inductive sensor, NPN/PNP/totem-pole encoder output

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

NPN sensor selection.

The reset input is always PNP.

No "npn select" is connected before totem or PNP sensors.

Reset signal: terminal (12), minimum 10 ms, + signal (PNP only) (5.....30 V)

Supply voltage: 100...240 V AC, 50-60 Hz.

Power consumption: < 8 VA

Output (OUT):

1x SPDT relay 250VAC, 2A, resistive load, terminals 4=COM, 3=NO, 5=NC,

1x SSR control - NPN, 30V, max 100mA, terminal 13=SSout, 14=GND

Sensor power supply: terminal (9) 12 VDC, 50 mA (max.), unregulated

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