SCMVAS-M650

S C M 5 B SCMVAS Voltage Attenuator System Description The SCMVAS (Signal Conditioning Modular Voltage Attenuator System) is an analog signal conditioning system designed to safely monitor and accurately measure voltage potentials up to 495VAC (1400V peak-topeak). These highlevel voltages are typically found in industrial applications such as induction heaters or electric-motor drive controllers. The system reduces the input signal to a level suitable for interface to data ac uisition systems, while at the same time providing various filter characteristics and 1500Vrms isolation (Figure 1). For each channel of analog input, an attenuator module, SCMVAS-Mnnn, pre conditions the signal which is then filtered, isolated, and converted to a high-level voltage output using an SCM5B30-07 or SCM5B40-07 module. The S B module with a H bandwidth is recommended for common 50/ 60Hz signals low in harmonics where the user is interested in measuring only AC voltage. The SCM5B30-07 module is used for low fre uency A signals below H . The attenuator and signal conditioning modules have excellent stability over time and do not re uire recalibration. Overall system accuracy is . . Input signal connections to the SCMVAS-Mnnn attenuator module are made using a pluggable terminal bloc for ease of system assembly and reconfiguration. For safety purposes, the terminal bloc has a cover over the screws and there are no other exposed high-voltage points on the SCMVAS-Mnnn series modules, SCM5B30-07 or SCM5B40-07 module, or the mounting bac panel. Features • Accepts High Voltage Signals up to 495VAC (1400V Peak-to-Peak) • 5 or 10 Volt Output for A/D Systems • 1500Vrms Transformer Isolation • True 3-Way Isolation • Up to 160dB CMR • ± 0.06% Accuracy • Panel or DIN Rail Mounting Options SA ertified • CE Compliant • ATEX Compliant (all models except SCMVAS-M400, -M500, -M600, -M650) The S AS system has two specially designed bac panels for mounting the attenuator and signal conditioning modules. The S AS PB high density, channel bac panel Figures , can be panel mounted or DIN rail mounted and provides the conditioned output signal on screw terminal bloc s. umpers are provided on each channel to optionally connect or isolate each module’s I/O Common from other channel’s I/O Common and/or Power Common. The SCMVAS-PB16 Figures , has channels of analog I O simultaneously available to high speed data ac uisition AD boards through a conductor ribbon cable. Refer to the S PB Data Sheet in this catalog and Application Note AN502 at www.dataforth.com for recommended ground connections and host system interfaces. Both the SCMVAS-PB8 and SCMVAS-PB16 bac panels can be mounted on the S R inch metal rac . F i g u r e 1 : S C M V A S S ch e m a tic Visit our website www.dataforth.com ©1995-2017 Dataforth Corporation, All Rights Reserved 4 3 ISO9001:2008-Registered QMS S C M 5 B Isolated Analog Signal Conditioning Products Isolated Analog Signal Conditioning Products S C M 5 B SCM5B30/40-07 Isolated Analog Voltage Input Modules Specifications Typical❇ at TA and Ordering Information D power Module SCM5B30-07 SCM5B40-07 Input Range Input Bias Current Input Resistance Normal Power Off Overload Input Protection Continuous Transient – 1.0V to +1.0V ± 0.5nA * CMV, Input to Output Continuous Transient CMR (50 or 60Hz) NMR Accuracy(1) Linearity Stability Input Offset Output Offset Gain Noise Input, DC to 10Hz Output, 100kHz Bandwidth, -3dB Response Time to final value Output Range Output Resistance Output Protection Output Selection Time (to ± 1mV of VOUT) Output Current Limit Output nable ontrol Max Logic “0” Min Logic “1” Max Logic “1” Input Current “0,1” Power Supply Voltage Power Supply Current Power Supply Sensitivity Mechanical Dimensions (h)(w)(d) Environmental Operating Temp. Range Storage Temp. Range Relative Humidity Emissions EN61000-6-4 Radiated, Conducted Immunity EN61000-6-2 RF ESD,EFT * * Model Description SCM5B30-07 SCM5B40-07 SCM5B30-07D SCM5B40-07D V Isolation Module, ± V Isolation Module, ± V Isolation Module, ± V Isolation Module, ± 5V Output, 4Hz Bandwidth 5V Output, 10kHz Bandwidth 10V Output, 4Hz Bandwidth 10V Output, 10kHz Bandwidth * * 240Vrms max ANSI/IEEE C37.90.1 1500Vrms max ANSI/IEEE C37.90.1 160dB 95dB at 50Hz, 90dB at 60Hz ± 0.03% Span ± 0.005% Span * * * 100dB 120dB per Decade above H * ± 0.01% Span * * * ppm rms rms * 2mVp-p 4Hz 0.2s 10kHz s – 5V to +5V (– 10V to +10V, D model versions) * Continuous Short to Ground . S at load = 0 to 2000pF * * * ± 8mA * +0.8V +2.4V +36V . A * * * * +5VDC ± 5% 30mA RTI(2) * * * 2.28”x 2.26”x 0.60” (58mm x 57mm x 15mm) * to to 0 to 95% Noncondensing ISM, Group 1 Class A ISM, Group 1 Performance A ± 0.5% Span Error Performance B * 4 4 ©1995-2017 Dataforth Corporation, All Rights Reserved * * * * * * * NOTES: ❇ ontact factory or your local Dataforth sales office for maximum values. Includes linearity, hysteresis and repeatability. (2) RTI = Referenced to input. For information call 800-444-7644 ISO9001:2008-Registered QMS SCMVAS-Mnnn High Voltage Attenuator Modules Specifications Module Input Range Input Voltage Maximum Input Resistance SCMVAS-Mnnn ± 100Vpeak to ± 700Vpeak (70VAC to 495VAC) ± 750Vpeak Accuracy Stability ± 0.03% ppm Output Range Output Resistance ± 1V Mechanical Dimensions (h)(w)(d) Environmental Operating Temp. Range Storage Temp. Range Relative Humidity HazLoc CSA ATEX ❇ Ordering Information Typical❇ at TA 1.70”x 1.98”x 0.69” (44mm x 51mm x 18mm) to to 0 to 95% Noncondensing All models except SCMVAS-M700 All models except SCMVAS-M400, -M500, -M600, -M650, -M700 Model SCMVAS-M100 SCMVAS-M200 SCMVAS-M300 SCMVAS-M400 SCMVAS-M500 SCMVAS-M600 SCMVAS-M650 SCMVAS-M700 SCMVAS-MPT Description Attenuator Module Attenuator Module Attenuator Module Attenuator Module Attenuator Module Attenuator Module Attenuator Module Attenuator Module Attenuator Module, Pass-Thru 1-to-1 Input Range with V Isolation Module ± 100V Input (70VAC) ± 200V Input (141VAC) ± 300V Input (212VAC) ± 400V Input (282VAC) ± 500V Input (353VAC) ± 600V Input (424VAC) ± 650V Input (460VAC) ± 700V Input (495VAC) Accessories Model Description SCMVAS-PB8 SCMVAS-PB8D SCMVAS-PB16 SCMVAS-PB16D Backpanel, 8-Channel Backpanel, 8-Channel, DIN Rail Mount Backpanel, 16-Channel Backpanel, 16-Channel, DIN Rail Mount ontact factory or your local Dataforth sales office for maximum values. Figure 2: SCMVAS-PB8 Analog I/O Backpanel Visit our website www.dataforth.com ©1995-2017 Dataforth Corporation, All Rights Reserved 4 5 ISO9001:2008-Registered QMS S C M 5 B S C M 5 B Isolated Analog Signal Conditioning Products Isolated Analog Signal Conditioning Products Figure 3: SCMVAS-PB8 Schematic Figure 4: SCMVAS-PB16 Analog I/O Backpanel 4 6 ©1995-2017 Dataforth Corporation, All Rights Reserved For information call 800-444-7644 ISO9001:2008-Registered QMS S C M 5 B S C M 5 B Figure 5: SCMVAS-PB16 Schematic Visit our website www.dataforth.com ©1995-2017 Dataforth Corporation, All Rights Reserved 4 7 ISO9001:2008-Registered QMS S C M 5 B Isolated Analog Signal Conditioning Products