2281 Ramp Generator

Brand: PR Electronics

  • Multiple functions
  • Programmable from front
  • 3-digit LED display
  • NPN and PNP inputs
  • Internal ramp time or external pulses
  • Reset or preset function
Features
  • The user interface consists of a 3-digit display and 3 function keys in the front to change a function, ramp time or an output signal range.
  • LED’s for up, reset and down.
  • 6 digital inputs make it possible to choose reset and up/down functions as either NPN or PNP input (+24 VDC).
  • Via an analog switch the up and down inputs can be switched between input filters for a pulse length > 10 ms or > 0.5 ms. The 10 ms filter is used for elimination of contact-bounce.
  • Analog standard current output of 0/4...20 mA or jumper selectable 0/2...10 mA, and standard voltages of 0/0.2...1 VDC, 0/2...10 VDC or special.
  • Mounting for a standard 11-pole socket which can be adapted for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying.

Specifications

Approvals & Certifications

  • CE
  • EAC TR CU 020/2011
  • EMC 2014/30/EU

Consumption

  • 2.4 W

Dimensions

  • 3.17" x 1.40" x 3.33" {80.5 x 35.5 x 84.5 mm (H x W x D)} - D is without Pins

Environmental Protection

  • IP50

Frequency

  • 16 Hz - Input Frequency
  • 50 Hz to 1 kHz - Maximum

Humidity

  • < 95% Relative Humidity, Non-Condensing

Input

  • 0 Vdc at 6.9 mA, Pull Down - PNP Digital Input
  • 24 Vdc at 6.9 mA, Pull Up - NPN Digital Input

Linearization

  • < 0.1% of Span - Linearity Error

Load Impedance

  • ≤ 600 ohms at Current Output

Operating Time

  • 0.1 to 999,999 seconds - Up & Down Ramp Time

Output

  • 0-20 mA
  • 20.5 mA - Current Limit
  • 5 mA - Minimum Signal Range

Output Noise

  • Minimum 60 dB - Signal to Noise Ratio

Power Requirement

  • Maximum

Power Supply Effect

  • ± 0.005% of Span Per Volt

Resolution

  • 16-bit - Signal Dynamics, Output

Response Time

  • < 60 milliseconds

Stability

  • ≤ 0.01% of Span at 100 ohms

Supply Voltage

  • 19.2-28.8 Vdc

Switch Type

  • NPN
  • PNP

Temperature Effect

  • <± 0.01% of Span / °C

Temperature Range

  • 20° to 28° C (68° to 82.4° F) - Calibration Temperature
  • -20° to 60° C (-4° to 140° F)

  • To convert digital signals to a time-controlled analog signal with either internally entered up/down time or with external pulses for up/down function.
  • 2-phase encoder.
  • Ramp generator with internal time measurement.
  • Ramp generator with external pulses.

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