2281
Ramp generator
- Multiple functions
- Programmable from front
- 3-digit LED display
- NPN and PNP inputs
- Internal ramp time or external pulses
- Reset or preset function
Manuals : 
Data sheet :
Advanced 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.
Application
- 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.
Technical characteristics
- 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.
Environmental Conditions
Specifications range -20°C to +60°C Calibration temperature 20...28°C Relative humidity < 95% RH (non-cond.) Protection degree IP50 Mechanical specifications
Dimensions (HxWxD) 80.5 x 35.5 x 84.5 mm (D is without pins) Weight approx. 120 g Common specifications
Supply voltage 19.2...28.8 VDC Max. power consumption 2.7 W Internal consumption 2.4 W Signal / noise ratio Min. 60 dB Response time < 60 ms Signal dynamics, output 16 bit Up ramp time 0.1...999999 s Down ramp time 0.1...999999 s External pulses 1...15,615,744 Effect of supply voltage change < 0.005% of span / VDC Temperature coefficient < ±0.01% of span / °C Linearity error < 0.1% of span EMC immunity influence < ±0.5% Input specifications
Digital input Up / down inputs Reset inputs NPN, digital input Pull up 24 VDC / 6.9 mA PNP, digital input Pull down 0 VDC / 6.9 mA Pulse length >10 ms / > 0.5 ms (programmable) > 30 ms Input frequency 50 Hz / 1 kHz (max.) 16 Hz Output specifications
Max. offset 50% of selected max. value Current output: Signal range 0...20 mA Min. signal range 5 mA Load (max.) 20 mA/600 Ω/12 VDC Load stability, current output ≤0.01% of span / 100 Ω Current limit 20.5 mA Voltage output through internal shunt See manual for details *of span = of the presently selected range Approvals
EMC EN 61326-1 EAC TR-CU 020/2011 EN 61326-1