Rotational speed controller

Transcription

1 Model number Features Rotational speed monitoring up to khz pre-select value with relay output and LED indicator Multi-range power pack -, -, -wire and NAMUR sensors as well as rotary encoder connectable Start-up delay Auxiliary power output for sensors Connection via Power Rail Menu driven operation via front keys Period measurement Indication in Hz or /min Password protection Output signal can be inverted Display devices can be set between..... sec. Protection degree IP Technical data General specifications Pre-selection Programming single keypad-driven menu Supply Rated voltage V DC %/- %; V AC ± %; V AC ± % Power consumption W / VA Indicators/operating means Type -segment LED display, red Number of decades Display value digit height mm, in Hz or /min LED yellow switching state Decimal point freely adjustable Accuracy ± digit Input Control input Trigger input Pulse duration µs NAMUR:, ma x, ma (terminal, ), max.. V and 6. ma, impedance. kohm PNP sensor: V (terminal ), max. V, impedance. kohm NPN sensor: V (terminal ), impedance. kohm V (terminal ), max. V, impedance. kohm Output changeover contact Sensor supply V DC ± %, ma, short-circuit proof Contact loading V AC/ A/ cosϕ. V DC/ A Duration of momentary impulse.... s Measuring error up to Hz<.% up to khz<.% up to khz<.% Delay times Time delay before availability ms Start-up override,..., s (External trigger signal) ms Timer function ON/OFF delay Ambient conditions Ambient temperature -... C (... K) Storage temperature -... C (... K) Mechanical specifications Lifetime Connection Dimensions Construction type Mounting x 6 switching cycles self-opening apparatus connection terminals, max. core cross-section..... mm mm x. mm x mm modular terminal housing in Makrolon, System KH snap-on to mm standard rail or screw fixing PepperlFuchs Group Tel.: Germany 6 6- USA Singapore 6 6 Internet

2 Indicating / Operating means / Dimensions Yellow LED, switch state indication -segment-display 6 Drehzahlwächter Output Speed monitor Control keys Mode Enter. PEPPERLFUCHS GERMANY 6 Electrical connection Bridge fitted: start-up bypass triggered by switching on the power supply External trigger signal Power supply V DC or Power supply V AC or Power supply V AC output 6 6 supply V DC Trigger input for start-up bypass supply GND Not connected L L L ( V) N L ( V) COM NC NO yellow NAMUR NAMUR supply V DC Input for PNP output circuit Input for NPN output circuit supply GND NAMUR Sensor L L DC--wire sensor, PNP L L DC--wire sensor L Encoder, push-pull L L NAMUR Encoder L L DC--wire sensor, NPN L L DC--wire sensor L Encoder, push-pull L L PepperlFuchs Group Tel.: Germany 6 6- USA Singapore 6 6 Internet

3 Notes Device description The Speed Monitor is a device for the indication and monitoring of periodic signals, which occur in almost all areas of automation and process technology, i. e. of frequencies in general and rotational speeds in special cases. The input signals are evaluated in accordance with the cycle method, i. e. by measurement of the period of oscillation and conversion into frequency or rotational speed by a very fast m controller. The frequently occurring special case of rotational speed measurement has been paid particular attention in the development of the device. Thus indication and input can be either in Hz or in /min. It is also possible, in applications involving slow processes, in which the signal sensors provide many pulses per revolution, to operate automatically with the actual rotational speed of the drive by specifying the number of pulses per revolution. The indication of the measured value is provided on a -digit, -segment LED display on the front of the device, with up to places after the decimal point. The monitoring function is achieved on the basis of a limit value, whose upper and lower hysteresis value is freely selectable within the respective display range. The output signal is generated by a relay with a changeover contact, when the hysteresis limits are violated. Thanks to a high switching capability, the relay output can be used for the direct activation of an actuating element or as an input signal for a higher level control system. Also, the switching status of the relay is indicated by means of a yellow LED on the front of the device. A function block is connected in series with the relay, which provides for various timer functions and thus obviates the requirement for the subsequent addition of a timer relay. In addition to the pull-in and drop-out delay, passing make contact and and pulse extension, the direction of operation of the relay, i. e. monitoring of speed fluctuation about a nominal value, can also be selected. The built-in start-up override, initiated when the power supply is switched on, or by an external signal, prevents error signals during the running up of the monitored system. The speed monitor can be supplied with V AC, V AC or by a V DC supply and when connected to an alternating voltage it provides a V DC source to supply the signal sensor. All current two, three and four-wire proximity switches and incremental encoders can be accepted as the signal sensor.in addition, two terminals are reserved for the connection of proximity switches in accordance with DIN (NAMUR). Terminal assignment T. : Signal sensor supply GND T. : Trigger input for start-up override T. : Signal sensor supply V DC T. : Power supply V DC T. : Power supply GND T. 6: Not connected. T. : Signal sensor supply GND T. : NAMUR input L- T. : NAMUR input L T. : make contact, NO T. : break contact, NC T. : root, COM T. : Signal sensor supply V DC T. : Signal sensor NPN input T. : Signal sensor PNP input T. 6: Power supply L, V AC T. : Power supply L, V AC T. : Power supply N PepperlFuchs Group Tel.: Germany 6 6- USA Singapore 6 6 Internet

4 Timer functions, reversal of operating direction of the output relay Function No. tstart-up No timer function ON delay t t OFF delay t t Defined ON time t t Pulse lengthening t t No timer function, inverted ON delay, inverted 6 t t OFF delay, inverted t t Defined ON time, inverted t t Pulse lengthening, inverted t t PepperlFuchs Group Tel.: Germany 6 6- USA Singapore 6 6 Internet

5 Operating principle Operating mode Password protection not activated. Password may not be edited. X=: frequency measurement. Hz... Hz X=: rotational speed measurement. rpm... rpm Preset at the factory: X= Number of pulses per revolution for rotational speed measurement (will be ignored for frequency measurement) XXXX Preset at the factory: XXXX= Measuring and display range Frequency measurement: X Rotational speed measurement: X Preset at the factory: X= X Frequency range Rotational speed in Hz in rpm ,.....,.....,.... Lower hysteresis limit of switching point XXXX (depending on the measuring range) Preset at the factory: XXXX= Upper hysteresis limit of switching point. XXXX (depending on the measuring range) Preset at the factory: XXXX= Period for the timer function of switching relay. s XXX.X. s Preset at the factory: XXX.X=. s Timer function of switching relay Preset at the factory: X= X Function No timer function ON delay OFF delay Defined ON time Pulse lengthening No timer function, inverted 6 ON delay, inverted OFF delay, inverted Defined ON time, inverted Pulse lengthening, inverted Start-up bypass. s XXX.X. s Preset at the factory: XXX.X=. s Display rate. s XX.X. s Preset at the factory: XX.X=. s The number of the software version can be read only. PepperlFuchs Group Tel.: Germany 6 6- USA Singapore 6 6 Internet