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CONNECTRIC moTrona FU 252 Operating Instructions Manual

Signal converter frequency-to-analogue and frequency-to-seria
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control – motion –
Signal Converter Frequency-to-Analogue
• Input frequency range from 0.1 Hz to 1 MHz for full scale analogue output
• Conversion time only 1 msec. (f > 3 kHz)
• Analogue outputs +/- 10 V, 0 - 20 mA and 4 - 20 mA
• Polarity of analogue signal changes with change of the direction of rotation
• Suitable for conversion of quadrature signals (A/B) as well as single-channel signals,
with all HTL or TTL or RS422 formats and levels
• Suitable for conversion of the sum, the difference or the ratio of two frequencies
• RS 232 and RS 485 interfaces for serial readout of the input frequencies
• Programmable digital filters and programmable linearisation curves
• Easy to set up by simple TEACH procedure, or by PC operator software
FU25202b_e.doc / Dez-08
interface
FU 252
and Frequency-to-Serial
Operating Instructions
motrona GmbH
Zwischen den Wegen 32
78239 Rielasingen - Germany
Tel. +49 (0)7731-9332-0
Fax +49 (0)7731-9332-30
info@motrona.com
www.motrona.com
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  • Page 1 motrona GmbH Zwischen den Wegen 32 78239 Rielasingen - Germany Tel. +49 (0)7731-9332-0 Fax +49 (0)7731-9332-30 control – motion – interface info@motrona.com www.motrona.com FU 252 Signal Converter Frequency-to-Analogue and Frequency-to-Serial • Input frequency range from 0.1 Hz to 1 MHz for full scale analogue output •...
  • Page 2 Safety Instructions • This manual is an essential part of the unit and contains important hints about function, correct handling and commissioning. Non-observance can result in damage to the unit or the machine or even in injury to persons using the equipment! •...

  • Page 3: Table Of Contents

    Table of Contents 1. Compatibility Hint ..................4 2. Introduction....................5 2.1. Impulse input formats and input levels..............5 2.2. Operating range......................6 2.3. Suitable encoders and sensors ................6 3. Terminal Assignments and Connections............7 3.1. Example for use of TTL encoders ................7 3.2.

  • Page 4: Compatibility Hint

    1. Compatibility Hint This product is a successor model of the thousandfold approved converter type FU251. The new product is suitable for a 100% replacement of the previous model, however some differences must be observed with DIL switch settings and parameter settings. Some essential advantages of FU252 compared to FU251 are: •...

  • Page 5: Introduction

    2. Introduction FU 252 is a small and low-cost, but highly performing converter for industrial applications, where one frequency or two different frequencies need to be converted into an analogue signal or a serial data format. The unit has been designed as a compact module with 12 screw terminals and a 9-position SUB-D connector (female).

  • Page 6: Operating Range

    Operating range 2.2. The full scale frequency (i.e. the input frequency where the analogue output reaches 10 V or 20 mA) can be set in a range from –1 MHz to +1 MHz. The operating range of the unit can be assigned to any frequency window inside this frequency range.

  • Page 7: Terminal Assignments And Connections

    3. Terminal Assignments and Connections We recommend connecting the Minus wire of the power supply to earth potential. Please observe that, under poor earthing and grounding conditions, multiple earth connections of screens and GND terminals may cause severe problems. In such cases it may be better to have only one central earthing point for the whole system.

  • Page 8: Example For Use Of Htl Encoders

    Example for use of HTL encoders 3.2. The encoder may be supplied from the same source as the converter, or from another source. +24V HTL encoder FU 252 Screen 12 (GND) Proximity switches, photocells etc. 3.3. These connections are fully similar to a HTL incremental encoder. With single channel operation, input B remains unconnected or can be used to select the output polarity.

  • Page 9: Serial Interface

    Serial interface 3.5. The unit provides a RS232 interface and a RS485 interface, however only one of the two can be used at a time. Serial communication allows to read out conversion results and to set parameters and variables by PC, according to need. GND int.

  • Page 10: Dil Switch Settings

    4. DIL Switch Settings There is one 8-position switch located on the top side (DIL1), and another 8-position switch is located on the bottom side of the unit (DIL2). These switches provide major settings of the desired properties of the unit. Changes of switch settings will become active only after cycling the power supply of the unit! Positions 7 and 8 of switch DIL2 are for internal factory use only and must...

  • Page 11: Impulse Levels And Symmetric / Asymmetric Input Formats

    Impulse levels and symmetric / asymmetric input formats 4.2. Positions 5 and 7 of DIL1 together with positions 3 to 6 of DIL2 allow setting of all imaginable combinations of levels and formats. • All subsequent tables use the following definitions: „0“...

  • Page 12: Analogue Output Format

    4.2.2. Settings for special applications Where you find that the standard settings shown before are not suitable for your application, please go through the following setting options and find out the input levels and characteristics you need. DIL1 DIL2 Characteristics of input A Characteristics of input B 5 6 7 3 4 5 6...

  • Page 13: Selecting The Rs232 Or The Rs485 Serial Interface

    Selecting the RS232 or the RS485 serial interface 4.4. Position 1 of switch DIL1 selects between the RS232 interface and the RS485 interface. All connection details have already been explained in section 3.5. DIL1 / 1 Serial Interface RS232 interface is active (RS485 is switched off) RS485 interface is active (RS232 is switched off) Teach function, Test function, loading of default settings 4.5.

  • Page 14: Commissioning

    5. Commissioning With all basic applications, you can use the Teach feature for commissioning of the unit. Extended functions need a PC for setup and are described under section 7. As a first step it is advisable to check the input frequencies by means of the LED marked “Status”.

  • Page 15: Conversion Of One Only Frequency (Single Channel Or Dual Channel With Direction Signal)

    Conversion of one only frequency 5.1. (single channel or dual channel with direction signal) Make sure that the DIL switches are set according to the encoder you use, and that position 6 of switch DIL1 is OFF (Teach function active). Self test: Upon power up, both front LED’s must be lit first, and the yellow status LED must switch off after the self test has been concluded successfully (approx.1 sec.).

  • Page 16: Pc Setup With Use Of The Operator Software Os3.X

    6. PC Setup with Use of the Operator Software OS3.x You can apply the full set of functions when you use a PC and our operator software OS3.x for setup of the unit (at this time the actual version is OS3.2). You can download this software and full instructions, free of charge, from our homepage www.motrona.com Connect your PC to the converter, using a serial RS232 cable like shown in section 3.5 of this...
  • Page 17 Ex factory, all motrona units use the following serial default settings: Unit No. 11, Baud rate 9600, 1 start/ 7 data/ parity even/ 1 stop bit If the serial settings of your unit should be unknown, you can run the „SCAN“ Function from the „TOOLS“...

  • Page 18: Parameter Description

    7. Parameter Description Parameter Description Register Setting (.8): These operands allow converting the result to the desired engineering units. Multiplier This conversion affects the numeric value for serial read out from Divisor register (:8) only, but not the scaling of the analogue output. With settings Multiplier = 1,0000...
  • Page 19 Parameter Description Frequency Control Frequency control and response characteristics to frequency gaps for channels A and B. This setting is taken as a 4 bit binary value. Range 00 – 15, default setting 10 (only to be changed in special case)*) Input Filter Programmable hardware filter for the impulse inputs 0 = no filtering...
  • Page 20 Parameter Description Channel B Setting Sampling Time B Time base for measuring the frequency on input B Range 0 – 9,999 seconds Setting 0 provides a sampling time of 750 μsec. Wait Time B Zero setting time for missing frequency on input B. Range 0.01 –...
  • Page 21 Parameter Description Teach Mode This parameter is only important when your application provides a combination of the two inputs (e.g. A + B). The setting determines how to scale the total result of the selected A/B calculation Teach Mode = 0: The unit will automatically calculate a new “full scale” output, resulting from the expected maximum values that can come up with the combined result from A and B *) Teach Mode = 1: The total result will use the same scaling as applied to...
  • Page 22 Parameter Description Serial Communication: Serial Unit No.: With RS 485 applications it is necessary to attach a specific address to each unit, since up to 32 units can be connected to the same bus. You can choose any address number between 11 and 99. The address must however not contain a “0“...
  • Page 23 Parameter Description Serial Timer: This register determines the cycle time in seconds for cyclic transmission when the Printer Mode is switched on. Range 0.001 to 9.999 seconds. With setting “0” all cyclic transmission is switched off and the unit will only send data upon request (PC mode *) Serial Value: Sets the code of the register of which the content should be sent with...
  • Page 24 Parameter Description Both Channel Setting: Multiplier: These settings provide a final scaling of the calculation result from the combined operation modes A / B Divisor: Offset: Linearisation Setting: P1_x to P16_x: Interpolation points for linearisation (initial values) P1_y to P16_y: Interpolation points for linearisation (substitute values) (For clarification see section 9.) FU25202b_e.doc / Dez-08...

  • Page 25: Free Programmable Linearization

    8. Free Programmable Linearization This programmable feature allows the user to convert a linear input signal to a non- linear analogue output. There are 16 programmable x/y coordinates available, which can be set in any desired distance over the full conversion range. Between two coordinates, the unit uses linear interpolation.
  • Page 26 You can visualize your curve on the PC screen or by means of an external oscilloscope. For this, select TOOLS, then TEST and there „Analogue Voltage Function“. The unit will now simulate a repeating frequency course over the full range and generate the analogue signal accordingly.

  • Page 27: Monitor Functions

    9. Monitor Functions The monitor function of the OS3.2 PC software allows to display some important data on the PC screen with a continuous refresh cycle. Select „Monitor“ from the „Tools“ menu to open the basic view of the monitor window. Click to “Define”...
  • Page 28 Click to the Status field, next to the desired register code (where you read ON or OFF). Now you can toggle this position between ON and OFF by touching any key. Set all of the register codes to ON which you afterwards would like to trace on the monitor. Switch all unused register codes to OFF.

  • Page 29: Data Readout Via Serial Interface

    10. Data Readout via Serial Interface All register codes from section 9. are also available for serial readout by PC or PLC. For communication the FU252 converter uses the Drivecom Protocol according to ISO 1745. All protocol details can be found in our manual SERPRO_2a.doc which is available for download from our homepage www.motrona.com To request for a data transmission you must send the following request string to the converter:...

  • Page 30: Dimensions

    11. Dimensions 91mm (3.583’’) 40 mm (1.575’’) 74 mm (2.913’’) Side view Top view Front view FU25202b_e.doc / Dez-08 Page 30 / 34...

  • Page 31: Specifications

    12. Specifications Power supply 18...30 V DC Current consumption about 85 mA with 18 V, about 60 mA with 30 V (aux. output unloaded) Aux. encoder supply +5.5V +/- 5% (max.: 250mA) Inputs (RS422/TTL differential) RS422 compatible (differential level min. 1 V) or TTL differential, f = 1 MHz Inputs TTL single-ended...

  • Page 32: Internal Registers And Serial Codes

    13. Internal Registers and Serial Codes Commands: Name Code CmdBit SerStatus BusStatus ExtStatus FreezeBoth 0040 FreezeB 0020 FreezeA 0010 ResetBoth 0008 ResetB 0004 ResetA 0002 ActivateData 1000 StoreEEProm 0001 Parameters: Menu Name Code Default Register-Setting(:8) Multiplier -1000000 1000000 10000 Divisor 1000000 Offset -1000000...
  • Page 33 Menu Name Code Default Input-Setting InputConfiguration InputFunction Both-Channel-Setting Multiplier -1000000 1000000 10000 Divisor 1000000 10000 Offset -1000000 1000000 Linearisation-Setting P1(x) -100000 100000 100000 P1(y) -100000 100000 100000 P2(x) -100000 100000 100000 P2(y) -100000 100000 100000 P3(x) -100000 100000 100000 P3(y) -100000 100000 100000...

  • Page 34: Commissioning Form

    14. Commissioning Form Date: Unit: FU252 Operator: Software: Serial No.: General Setting Direction: Filter A/B: Linearisation Mode: Frequency Control: Input Filter: Input Channel A Channel B Sampling Time:: Wait Time: Filter Reset Value: Analogue Setting Channel A Channel B Teach Minimum: Teach Maximum Teach Mode Analogue Offset...

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