SCM5B39-04

Isolated Analog Signal Conditioning Products S C M 5 B SCM5B39 Current Output Modules Description Each SCM5B39 current output module provides a single channel of analog output. The trac and hold circuit in the input stage can be operated in a hold mode where one DAC can supply many output modules, or a track mode where one DAC is dedicated to each module. In addition to the track-and-hold circuit, each module provides signal buffering, isolation, filtering, and conversion to a high level current output (Figure 1). Setting of the trac or hold mode is controlled by the logic state of R N , module pin . hen pin is low, the trac mode is enabled. If pin is high, the hold mode is enabled. The module is designed with a completely isolated computer side circuit which can be oated to from Power Common, pin 16. This complete isolation means that no connection is re uired between I O ommon and Power ommon for proper operation of the track and hold circuit. For a low state, simply connect pin , the rite nable pin, to I O ommon, pin . The S PB and S PB bac panels allow host computer control of the WR EN\ control line, which allows multiplexing of one host DAC to up to 64 SCM5B39 output modules. During power-up, the output remains at 0mA for 100ms on all models except the SCM5B39-07, which allows the trac and hold circuit to be initiali ed. Features • Accepts High-Level Voltage or Process Current Input • Unipolar or Bipolar Current Output • 1500Vrms Transformer Isolation • ANSI/IEEE C37.90.1 Transient Protection • Output Protected to 240VAC Continuous • 110dB CMR • 400Hz Signal Bandwidth • ± 0.03% Accuracy • ± 0.005% Linearity SA S ertified • CE and ATEX Compliant • Mix and Match SCM5B Types on Backpanel A special circuit in the output stage of the module provides protection against accidental connection of power-line voltages up to 240VAC on all models. F i g u r e 1 : S C M 5 B 3 9 B l o ck D ia g r a m 2 4 ©1995-2017 Dataforth Corporation, All Rights Reserved For information call 800-444-7644 ISO9001:2008-Registered QMS Specifications Typical❇ at TA Module Input Voltage Range Input Current Range (-05) Input Voltage Maximum Input Current, Maximum (-05) Input Resistance Input Resistance (-05) Output Current Range Power-Up Delay(1) Current Out Over Range apability Output Compliance Voltage (Open Circuit) Load Resistance Range Output I Under Fault, max Output Protection Continuous Transient CMV, Output to Input Continuous Transient CMR (50Hz or 60Hz) NMR (– 3dB) Accuracy Linearity Stability Offset Gain Noise Output Ripple, 100kHz Bandwidth, – 3dB Rise Time, 10 to 90% Span Sample and Hold Output Droop Rate Acquisition Time Trac and Hold nable ontrol Max Logic “0” Min Logic “1” Max Logic “1” Input Current “0” and Ordering Information D power Unipolar Output Current SCM5B39-01,-02,-03,-04,-05 Bipolar Output Current SCM5B39-07 ± 5V or 0V to +5V 0 to 20mA ± 36V (no damage) 75mA (no damage) ± 10V N/A * N/A 0 to 20mA or 4 to 20mA 100ms 0mA 10% ± 20mA N/A N/A * 22VDC to to for Power Supply Voltage greater than 4.95VDC) 26mA ± 15VDC to to for Power Supply Voltage greater than 4.95VDC) * 240Vrms max ANSI/IEEE C37.90.1 * 1500Vrms max ANSI/IEEE C37.90.1 110dB 80dB per Decade above H * * 80dB per Decade above H ± 0.03% Span ± 0.005% Span ± 0.05% Span ± 0.03% Span . A ppm * ppm Ap p 400Hz 1.0ms * 275Hz 1.2ms N/A Input Range Output Range Bandwidth SCM5B39-01 SCM5B39-02 SCM5B39-03 SCM5B39-04 SCM5B39-05 SCM5B39-07 0V to +5V – 5V to +5V 0V to +5V – 5V to +5V 0mA to 20mA – 10V to +10V – 4mA to 20mA 4mA to 20mA 0mA to 20mA 0mA to 20mA 0mA to 20mA 20mA to +20mA 400Hz 400Hz 400Hz 400Hz 400Hz 275Hz Refer to S B output models. specifications, p. , for additional current * As s * * * Power Supply Voltage Power Supply Current Power Supply Sensitivity +5VDC ± 5% 170mA . A typ * 130mA * Mechanical Dimensions (h)(w)(d) 2.28” x 2.26” x 0.6” (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 Model * +0.8V +2.4V +36V . A Environmental Operating Temp. Range Storage Temp. Range Relative Humidity Emissions EN61000-6-4 Radiated, Conducted Immunity EN61000-6-2 RF ESD, EFT S C M 5 B * * * * * * * * * * * NOTES: ❇ ontact factory or your local Dataforth sales office for maximum values. * Same as -01, -02, -03, -04, -05 modules. (1) See Product Description for further details. Visit our website www.dataforth.com ©1995-2017 Dataforth Corporation, All Rights Reserved 2 5 ISO9001:2008-Registered QMS S C M 5 B Isolated Analog Signal Conditioning Products