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701281 - Frequenz-Eingangsmodul (EINGESTELLT)

Hinweis: Dieses Produkt wurde eingestellt 08.11.2017.
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  • Zusätzliches Produktbild 1

Messung von Frequenzen von 0,01 Hz bis 500 kHz, Messparameter (Frequenz, Drehzahl, Periodendauer, Tastverhältnis, Stromversorgungsfrequenz, Impulsbreite, Geschwindigkeit).

Einsetzbar in DL850 Serie, SL1000.

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Tm Dl850e 02All the functions and performance specs required for pulse measurement packed into a small, 2 CH module.

The module's internal high-speed CPU performs measurement, calculation, and recording in real time.

  • 9 measurement modes
  • 0.01 Hz-500 kHz
  • 1 µs (1 MHz) update rate
  • Max 16 ch
  • Directly records and measured results
  • Unlike with FV converters, rescaling is not necessary with this module. Directly record measured results. Display numerical values directly using cursors and auto measurements.

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Real-Time Digital Filtering
The DL850E/EV has 2 real-time digital filters that can be used for waveform averaging.
  • Smoothing Filter (Moving Average)
  • Smooth stair-step shaped waveforms. Updating occurs every 1 µs, giving a highspeed averaging effect. Filters are set at 0.1 ms-1 sec (up to the 25000th order). Filters reduce jitter in observed waveforms, and increases resolution.
  • Pulse Average
  • Useful for determining the average value per rotation, or determining the number of rotations when a gear is missing teeth. Output is averaged every specified number of pulses (between 1 and 4096 pulses).

 

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Variety of Signal Inputs
  • Direct-Coupled Signal Input
    • Encoder pulse input of up to ±42 V.
    • Direct input to EM (electromagnetic) pickups (1:1).
    • AC power up to 300 V (10:1 isolation probe 700929 required
  • Multiple Analog Inputs
    • Isolated input, 6 ranges, 4 input filters, internal pullup (mechanical contacts, supports open collector), AC/DC coupling, variable threshold value, 3 types of hysteresis
  • Chatter Elimination (Supports Mechanical Contacts)
    • Time setting: 1 ms-1000 ms
  • Convenient Input Presets
    • Presets for logic input (3 V-12 V), EM pickups, and AC power available in menus.
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Supports Braking Applications

By predicting the deceleration curve and stop point, the module automatically compensates for the lack of information on encoder pulses which occur during deceleration.

  • Deceleration Prediction (1)
  • Automatically calculates and outputs a deceleration curve based on the interval of the last input pulse.
  • Stop Prediction (2)
  • If no pulses are inputted for a period of time, a stop is inferred, and output is set to 0. Up to 10 steps can be specified.
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Offset Observation Function

An observational center (offset) is set and the area surrounding the offset can be zoomed. Useful when you wish to observe the fluctuation centering on a certain frequency.

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Trigger Support

Triggers can be activated on output results from all observation modes. For example, you can observe and trigger on a duty value.

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Frequency Module Applications
The 701281 Frequency Module supports all rotation and pulse measurements involved in encoder pulse measurement.
 
  • Automotive
  • For measurement of rotating devices such as engines and transmissions (rpm, speed, distance, fluctuations).
  • Effective for deceleration characteristics in braking applications such as ABS. Also used for duty analysis of oil pressure controllers.
  • Motor
  • For measurement of rotation, load characteristics, and fluctuations.
  • Robot
  • For multichannel measurement of encoder pulse, and motor analysis.
  • Office Automation
  • Office equipment, paper feed fluctuation analysis, copiers, and wow-flutter in laser printer drums.
  • Power Supply
  • High resolution measurement of power supply frequency (50/60 Hz) (0.01 Hz resolution, ±0.03 Hz accuracy)
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Tm Dl850e 04Convenient LED

An LED accompanies each channel for confirmation of pulse input. Lights green during input, and turns red on a voltage overrange. You can confirm the input waveform condition at a glance.

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