Related Manuals for Hohner FU 252
Summary of Contents for Hohner FU 252
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Page 1
Operating Manual Signal converter for frequency -analog / serial FU 252 Your partner for standard and special designs - precise, reliable and fast -...
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Page 2
FU 252 Signal converter for frequency - analog / serial Product features: Input frequency range from 0.1 Hz to 1 MHz for full scale analog output Conversion time only 1 ms. (f > 2 kHz) Analog output with +/- 10 V or 0 resp. 4 to 20 mA ...
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Page 3: Table Of Contents
10. MONITOR FUNCTIONS ......................29 11. DATA READOUT VIA SERIAL INTERFACE ................31 12. DIMENSIONS ........................32 13. TECHNICAL SPECIFICATIONS ....................33 14. INTERNAL REGISTERS AND SERIAL CODES ................34 15. COMMISSIONING FORM ....................... 36 Fu252_02g_oi_e.doc / Apr-16 Page 3 / 36 www.hohner-elektrotechnik.de...
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Page 4: Safety Instructions And Responsibility
Please note that device may only be installed in proper form and used in a technically perfect condition and in accordance to the Technical Specifications (see chapter 13). The device is not suitable for operation in explosion-proof areas or areas which are excluded by the EN 61010-1 standard. Fu252_02g_oi_e.doc / Apr-16 Page 4 / 36 www.hohner-elektrotechnik.de...
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Page 5: Installation
(if necessary). Unauthorized opening and repairing can have negative effects or failures to the protection-measures of the unit. Fu252_02g_oi_e.doc / Apr-16 Page 5 / 36 www.hohner-elektrotechnik.de...
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Page 6: Compatibility Hint
The setting of the analog format (+/-10 V, 0 … 10 V or 0/4 … 20 mA) can be done by a supplementary DIL switch (no more PC required) Enhanced auxiliary output 5 V / 250 mA for encoder supply Fu252_02g_oi_e.doc / Apr-16 Page 6 / 36 www.hohner-elektrotechnik.de...
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Page 7: Introduction
3. 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 Analog 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).
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Page 8: Operating Range
In general, HTL encoders will be supplied from the same source as the converter itself. For supply of TTL encoders, the unit provides an auxiliary output of 5.5 volts (stabilized, max. 250 mA). Fu252_02g_oi_e.doc / Apr-16 Page 8 / 36 www.hohner-elektrotechnik.de...
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Page 9: Terminal Assignments And Connections
Voltage output +/-10V TTL: input /B HTL: n.c. TTL: input /A HTL: n.c. TTL: input B HTL: input B TTL: input A HTL: input A FU 252 GND ( - ) for analogue signals Control Aux. output 5.5V Supply +18...30 VDC (max.
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Page 10: Example For Use Of Htl Encoders
4.2. Example for use of HTL encoders The encoder may be supplied from the same source as the converter, or from another source. +24V HTL encoder FU 252 Screen 12 (GND) 4.3. Proximity switches, photocells etc. 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.
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Page 11: Serial Interface
PC, according to need. GND int. RS232 RS485 Sub-D-9 (female on unit site) Please connect only pins 2, 3 and 5 ! FU 252 120 Ohms 120 Ohms 120 Ohms 120 Ohms RS485- Bus FU 252...
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Page 12: Dil Switch Settings
Product A x B Quadrature input A / B / 90° off off on Difference A - B off off off A = impulse, B = direction / sign Fu252_02g_oi_e.doc / Apr-16 Page 12 / 36 www.hohner-elektrotechnik.de...
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Page 13: Impulse Levels And Symmetric / Asymmetric Input Formats
Photo switches etc. Push-Pull characteristics Symmetric TTL signals or Standard TTL encoders 0 0 0 0 RS422 signals (A, /A), (B, /B) providing A, /A, B, /B (differential, including inverted signal) output channels Fu252_02g_oi_e.doc / Apr-16 Page 13 / 36 www.hohner-elektrotechnik.de...
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Page 14: Analog Output Format
1 0 Current 4 – 20 mA of parameter “Analog Mode” is “1”, the format will be a 0 … +10 V output under default conditions. 1 1 Current 0 – 20 mA Fu252_02g_oi_e.doc / Apr-16 Page 14 / 36 www.hohner-elektrotechnik.de...
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Page 15: Selecting The Rs232 Or The Rs485 Serial Interface
After successful commissioning, please make sure to set positions 6 and 8 to “ON”. Otherwise, cycling of the power supply or touching the push button inadvertently would result in overwriting your parameter settings. Fu252_02g_oi_e.doc / Apr-16 Page 15 / 36 www.hohner-elektrotechnik.de...
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Page 16: Commissioning
You must switch over to combined operations A + B, A - B, A x B or A : B only after you have successfully run the Teach function for both channels. Parameter „Teach-Mode“ will determine if or if not an automatic re-scaling will apply after switch-over. Fu252_02g_oi_e.doc / Apr-16 Page 16 / 36 www.hohner-elektrotechnik.de...
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Page 17: Conversion And Combination Of Two Independent Frequencies
(see parameter “Teach Mode”). Please observe that minimum and maximum frequency settings for inputs A and B must never be “0” when you intend to use the ratio function A : B ! Fu252_02g_oi_e.doc / Apr-16 Page 17 / 36 www.hohner-elektrotechnik.de...
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Page 18: Pc Setup Via Operator Software Os3.x
In case your text and color fields remain empty and the headline says „OFFLINE“, you must verify your DIL switch setting and the serial settings of the unit. To access serial settings, please select „COMMS“ from the menu bar. Fu252_02g_oi_e.doc / Apr-16 Page 18 / 36 www.hohner-elektrotechnik.de...
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Page 19
(storage until next power-down), and finally use the „Store EEProm“ key when you like to have an enduring storage of all settings transmitted before. Fu252_02g_oi_e.doc / Apr-16 Page 19 / 36 www.hohner-elektrotechnik.de...
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Page 20: Parameter Description
0 = Linearisation OFF, parameters P1 to P16 are irrelevant. Linearisation Mode 1 = Linearisation in a range from 0% to 100 % 2 = Linearisation over full range –100% to +100% See example under section „Linearisation“ Fu252_02g_oi_e.doc / Apr-16 Page 20 / 36 www.hohner-elektrotechnik.de...
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Page 21
Input A : Bit0 = 0, Bit1 = 1. Input B : Bit2 = 0, Bit 3 = 1 to gaps within one sampling period. Fu252_02g_oi_e.doc / Apr-16 Page 21 / 36 www.hohner-elektrotechnik.de...
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Page 22
Teach pushbutton, like described already in Teach Maximum B section or by entering the frequency settings directly by keyboard to the parameter field of your screen, without using the TEACH function Fu252_02g_oi_e.doc / Apr-16 Page 22 / 36 www.hohner-elektrotechnik.de...
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Page 23
Teach Mode = 1 would reach the full-scale output already with a sum of A + B = 10 kHz, because only the 10 kHz / 10 volts scaling of input A will apply Fu252_02g_oi_e.doc / Apr-16 Page 23 / 36 www.hohner-elektrotechnik.de...
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Page 24
(xxxxxxx is the measuring value transmitted). Setting “1” will suppress transmission of the unit number, therefore the transmission cycle is shorter than with setting “0” Unit No. Serial Protocol = 0 : Serial Protocol = 1 : Fu252_02g_oi_e.doc / Apr-16 Page 24 / 36 www.hohner-elektrotechnik.de...
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Page 25
„Reset Value A/B“ Freezes the actual frequency value of input A Freezes the actual frequency value of input B Freezes both frequencies A and B Starts a serial transmission of the defined register value Fu252_02g_oi_e.doc / Apr-16 Page 25 / 36 www.hohner-elektrotechnik.de...
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Page 26
A / B Divisor: Offset: Linearisation Setting: P1_x to P16_x: Interpolation points for linearization (initial values) P1_y to P16_y: Interpolation points for linearization (substitute values) (For clarification see section 9) Fu252_02g_oi_e.doc / Apr-16 Page 26 / 36 www.hohner-elektrotechnik.de...
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Page 27: Free Programmable Linearization
P1(x)= -100% P1(y)= *) Output mode = 0 P8(x)= 0% P8(y)= 80% P16(x)=100% P16(y)= 80% P1(x)= 0% P16(x)=+100% P1(y)=10% P16(y)= -60% Linearisation Mode = 1 Linearisation Mode = 2 Fu252_02g_oi_e.doc / Apr-16 Page 27 / 36 www.hohner-elektrotechnik.de...
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Page 28
Analog signal accordingly. When you use the Scope function of the operator software, you must set the serial code to „:1” to record the Analog output. Fu252_02g_oi_e.doc / Apr-16 Page 28 / 36 www.hohner-elektrotechnik.de...
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Page 29: Monitor Functions
1 Actual frequency on input B in Hz, resolution 0.1 Hz, format xxx xxx.x Hz 3 Actual output voltage of the Analog output, scaling 0 … 10 000 millivolts *) In accordance to the applied conversion scaling see chapter 8. Fu252_02g_oi_e.doc / Apr-16 Page 29 / 36 www.hohner-elektrotechnik.de...
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Page 30
„Store to File“ and set the corresponding check box. After starting the monitor, you will see the following window where all values are updated continuously: Fu252_02g_oi_e.doc / Apr-16 Page 30 / 36 www.hohner-elektrotechnik.de...
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Page 31: Data Readout Via Serial Interface
C1 = register code, High Byte C2 = register code, Low Byte xxxxx = readout data ETX = control character (Hex 03) BCC = block check character For all further details see SERPRO_2a.doc. Fu252_02g_oi_e.doc / Apr-16 Page 31 / 36 www.hohner-elektrotechnik.de...
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Page 32: Dimensions
12. Dimensions 91mm (3.583’’) 40 mm (1.575’’) 74 mm (2.913’’) Side view Top view Front view Fu252_02g_oi_e.doc / Apr-16 Page 32 / 36 www.hohner-elektrotechnik.de...
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Page 33: Technical Specifications
-25 °C … +70 °C / -13 … +158 °F (not condensing) Failure rate: MTBF in years: 75.2 a (long-term usage at 60 °C / 140 °F ) Conformity and EMC 2004/108/EC: EN 61000-6-2, EN 61000-6-3, EN 61000-6-4 standards: Guideline 2011/65/EU: RoHs-conform Fu252_02g_oi_e.doc / Apr-16 Page 33 / 36 www.hohner-elektrotechnik.de...
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Page 34: Internal Registers And Serial Codes
-10000000 10000000 TeachMaxA -10000000 10000000 10000 TeachMinB -10000000 10000000 TeachMaxB -10000000 10000000 10000 TeachMode AnalogMode AnalogOffset -9999 9999 AnalogGain 10000 1000 Reserved 9999 1000 Serial-Communication SerialUnitNo. SerialBaudRate SerialFormat SerialProtocol SerialTimer 99999 SerialValue Fu252_02g_oi_e.doc / Apr-16 Page 34 / 36 www.hohner-elektrotechnik.de...
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Page 35
P13(x) -100000 100000 100000 P13(y) -100000 100000 100000 P14(x) -100000 100000 100000 P14(y) -100000 100000 100000 P15(x) -100000 100000 100000 P15(y) -100000 100000 100000 P16(x) -100000 100000 100000 P16(y) -100000 100000 100000 Fu252_02g_oi_e.doc / Apr-16 Page 35 / 36 www.hohner-elektrotechnik.de...
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Page 36: Commissioning Form
P07_X: P07_Y: P15_X: P15_Y: P08_X: P08_Y: P16_X: P16_Y: DIL Switch 1 DIL Switch 2 -1- -2- -3- -4- -5- -6- -7- -8- -1- -2- -3- -4- -5- -6- -7- -8- OFF OFF Fu252_02g_oi_e.doc / Apr-16 Page 36 / 36 www.hohner-elektrotechnik.de...
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