digital preselection counters

Product catalog summary

Overview: The document describes multifunctional preselection counters, types 320 and 321, which are programmable for various applications such as pulse, frequency, or time counting. These counters are suitable for tasks like preselection of pulses, cutting into lengths, dosing, time control, speed and rate supervision, and flow control.

Specifications:

6-digit LCD display with polarity sign.
Two-line indication for counter status and preselection value.
Programmable as pulse, frequency, or time counter.
Voltage: 90-250 V AC or 11-30 V DC.
Housing dimensions: 48 x 48 mm with adapter for 50 x 50 mm cutout.
Electrical connection through plug-in screw terminals.

Programmable Features:

Operating mode, polarity of inputs, input type, factor, and decimal point.
Output signals can be continuous or wiping contact.
Automatic repeat and gate time as frequency counter.
Resolution in seconds, minutes, hours, or h:min:sec as time counter.

Inputs and Outputs:

INP A and INP B: Counter inputs with a maximum frequency of 30 Hz or 10 kHz.
Gate: Static gate input to halt counting when activated.
Reset: Dynamic reset input to reset the counter.
Key: Static input for locking buttons.
Outputs: 2 potential-free relay outputs (type 320 has 1 output).

Programming: Programming is done via 4 buttons on the front, with user guidance on the display. Options include:

Polarity of inputs: Switching positive (PNP) or negative (NPN).
Operation variants: Accumulative or subtractive counting with automatic reset or setting.
Input variants: Various configurations for counting direction and quadrature input.
Decimals: Indication with up to three decimal places.
Factor: Adjustable between 0.0001 and 9.9999 for optimal transmitter adjustment.
Output signal: Configurable as make or break contact, with duration from 0.01 to 99.99 seconds.
Gate time: Programmable from 0.01 to 99.99 seconds.
Time counter: Counting in hours, minutes, or seconds with various resolutions.

Technical Specifications:

Character height: 9/7 mm.
Input resistance: 10 kOhm.
Max counting frequency: 10 kHz, reducible to 30 Hz.
Switching level: Log "0" and Log "1" defined for AC and DC supply.
Protection class: IP 65 (front).
Operating temperature: 0 to +50 °C.

Included in Delivery:

Type 320: 1 preselection, 1 relay output.
Type 321: 2 preselections, 2 relay outputs.
Plug-in screw terminals X1 and X2.
Frontal frames for various mounting options.

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