Analogowy przetwornik wzmacniający dedykowany dla czujników tensometrycznych RQA INSTALLATION MANUAL. Rev. 0.2

Transcription

1 Analogowy przetwornik wzmacniający dedykowany dla czujników tensometrycznych RQA INSTALLATION MANUAL Rev. 0.2

2 INDEX TECHNICAL FEATURES TECHNICAL FEATURES Pag. 2 SYMBOLOGY Pag. 3 CAUTION Pag. 3 IDENTIFICATION PLATE OF INSTRUMENT Pag. 3 CONNECTIONS POWER SUPPLY OF INSTRUMENT Pag. 4 CONNECTION LOAD CELL Pag. 4 CONNECTION ANALOG OUTPUT Pag. 5 CONNECTION SUMMARY Pag. 6 Pag. 1 RQA: Installation of instrument

3 TECHNICAL FEATURES Power supply Absorption max Isolation Operatine temperature Storage temperature 24 Vdc +-10% to protect against polarity reversal. Protection with fuse. 1 W Class II -10 C +50 C (relative humidity max 85% not-condensing) -20 C +60 C Led 2 led to 3 mm (digital output) keyboard 3 button mechanical-type (behind frontal red door ) Overall dimensions Mounting Material Connections 110 mm x 120 mm x 23 mm (l x h x p) with modbus DIN rail profile/omega bar Blend PC/ABS Pull-otu terminal blocks, pitch 5.08 mm Input load cells max 4 to 350 Ohm in parallel ( 8 load cells to 700 Ohm). Load cells power supply 4Vdc Linearity < 0.01% of full scale Temperature drift < 0.001% of full scale / C Converter resolution bit Imput signal range -2.6 mv/v a +2.6 mv/v Digital filter 0.1 Hz - 50 Hz selectable Zero and full scale calibration Executable to push button. Lod cells cable fail check Always Analogue outputs Voltage: ± 10 V / ± 5 V Resolution 16 bits Calibration Push button digital Impedance Min. 10KΩ Linearity 0.03% of full scale Temperature drift 0.002% of full scale / C Analogue outputs Resolution Calibration Impedance Linearity Temperature drift Current: 0 20mA / 4 20mA 16 bits Push button digital Max 300Ω 0.03% of full scale 0.002% of full scale / C Memory program code Data storage Conformity to standards 32 Kbytes 2 Kbytes EN , EN for EMC EN for Electric Security RQA: Installation of instrument Pag. 2

4 SYMBOLOGY Consecutively to transfer the symbology to use manual for refer attention of reader: Attention! This operation it must be do dedicated personal. Give particolar attention to follow indications. More informations. WARNING The procedures to follow bring, to be made of personal dedicated. The connections to make on turned off. NAMEPLATE OF STRUMENT STAWMET. Is important communicate this information in case of request of informations or indications concernine the strument together at number of program and the version that to be writings on the cover of manual and to be visualize to ignition of strument. Pag. 3 RQA: Installation of strument

5 SUPPLY OF STRUMENT The strument is supplied through clamps 8 e 9. The cable of alimentation to be channel separately at others cables of alimentations whith other tensions, at cables of load cells and of the input/output logical. Tension of alimentation : 24 Vdc/ ± 10 % max 1W CLAMP CONNECTION 8. + Alim CONNECTIONS OF LOAD CELLS The cable of load cell (or load cells) not must be channel with other cables (es. connect out alimentation cable), but it must follow fitting path. Possible connections of extention the cable must be shield whith care, respecting the color code and using the cable stocked from constructor. The connections of extension must be make by electric welding, or by clamps of support or by junction box stocked part. The cable of load cell have the number conductor not superior at use (4 o 6). In case the cable have more conductor, to connect remaining cables ground load cell (clamp 2). At strument must be connect up to maximum of 4 load cells by 350 ohm in parallel. The power supply of load cells is of 4 Vcc and is protecion short ciurcuit. The field of measuring amplifier foresee use of load cells whith sensitivity from 1 mv/v at 2.5 mv/v. The cable of load cells is connect to the clamps of removable clamp at 7 poles. In case the cable of load cell at 4 conduttori, to connect the clapms of alimentation of load cell to the respective polarity of the reference clamps ( ). Connect the screen of cable of load cella at the clapm 1. RQA: Installation of strument Pag. 4

6 CONNECTION ANALOG OUTPUT The strument fsupply an analog output current and one an tension. Features: Analog output an tension: range from -10 at 10 Volt or from -5 at 5 Volt, small load 10KΩ Analog output an current : range from 0 at 20mA or from 4 at 20mA. The maximum load is 300Ω. Is possible output 0-10V or 0-5V by configuration an factory. For to realize the connection to make the screen cable, having care of to earth be the screen in the one of two estremity. The analog drive is particularly sensible to the trouble electromagnetic to advise that the cable be more possible short and that following their path. Pag. 5 RQA: Installation of strument

7 CONNECTIONS NUM. Terminal blocks 6P pitch 5.08 mm 11 Power supply 24Vdc 12 Power supply 0Vdc 13 Shielding 14 Analogue output GND 15 Analog output 4-20 / 0-20 ma 16 Analog output ± 10V ± 5V Terminal blocks 7P pitch 5.08 NUM. mm Load cell 6 wire 1 Shielding 2 - Excitation voltage load cell 3 + Excitation voltage load cell 4 + Sensor circuit 5 - Sensor circuit 6 - Measurement signal load cell 7 + Measurement signal load cell Terminal blocks 7P pitch 5.08 NUM. mm Load cell 4 wire 1 Shielding - Excitation voltage load cell 2 to connect with terminal 5 + Excitation voltage load cell 3 to connect with terminal Measurement signal load cell 7 + Measurement signal load cell RQA: Installation of strument Pag. 6