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PRECISION FILTERS SCB-16FA Installation And Programming Instructions

16-channel signal conditioner
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Installation and Programming Instructions
Model SCB-16FA
16-Channel Signal Conditioner
July 10, 2023
Rev. B
Precision Filters, Inc.
240 Cherry Street
Ithaca, New York 14850
www.pfinc.com
I SO
9 00 1
C ER TIFIE D QUALI T Y

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  • Page 1 Installation and Programming Instructions Model SCB-16FA 16-Channel Signal Conditioner July 10, 2023 Rev. B Precision Filters, Inc. 240 Cherry Street Ithaca, New York 14850 www.pfinc.com I SO 9 00 1 C ER TIFIE D QUALI T Y...

  • Page 2: Trademark Information

    Filters, Inc., some portions Copyright © National Instruments Corporation, All Rights Reserved. Trademark Information The following terms and names are trademarks of Precision Filters, Inc. in the United States and/or other countries: • Balanced Constant Current and BCC • Long Distance TEDS and LDTEDS...

  • Page 3: Safety Guidelines

    Model SCB-16FA Safety Guidelines Page B Safety Guidelines This document describes how to use the Model SCB-16FA 16-Channel Signal Conditioner and includes product information, installation and programming instructions, and contact informa- tion for support and service. The safety guidelines and product information in this document are specific to the Model SCB-16FA 16-Channel Signal Conditioner.

  • Page 4: Safety Symbols

    Model SCB-16FA Safety Guidelines Page B Safety Symbols Chassis Ground Signal Ground Direct Current Risk of Electric Shock Refer to Manual for Additional Safety Information On Supply Off Supply Model SCB-16FA Installation and Programming Instructions Rev. B- PRECISION FILTERS, INC.

  • Page 5: Table Of Contents

    1.3 Model SCB-16FA Specifications ........
  • Page 6 3.2 SCB-16FA System Setup Options and Reports ........
  • Page 7 Support and Service ................45 Rev. B Model SCB-16FA Installation and Programming Instructions Precision Filters, Inc.
  • Page 8 5.2 Service and Repair ..............45 Model SCB-16FA Installation and Programming Instructions Rev.

  • Page 9: Model Scb-16Fa General Information

    Section 3, Commands & Functions. Section 4, LCS Command Line Interpreter describes the LCS remote commands specific to the Model SCB-16FA Signal Conditioner and is an extension of the SCB-GUI-WIN Programming Instructions manual, Section 4, Remote Command Line Interpreter.

  • Page 10: Description

    SCB-16FA Test connector. The Model SCB-16FA is powered by 10.8 to 30 VDC and is supplied with a tension clamp power entry connector. An external AC-to-DC universal supply is available from Precision Filters.

  • Page 11: Iepe Current Source

    ±10 V peak Output Connectors: 16 BNC connectors 1.3.4 Power 10.8 - 30 VDC @ 50 W Max Power Connection: CONN-IN-TCP3: 3-pin Wiedmuller Omnimate pluggable tension clamp connector (PFI P/N A12486G2) Rev. B Model SCB-16FA Installation and Programming Instructions Precision Filters, Inc.

  • Page 12: Self-Test Features

    8-1/2 Digital Multimeter, Keysight Dual Rack Mount Flange Kit, 33509B Function/Waveform Generator, 1/2 Module Width Rack Mount Kit, two four foot BNC cables and and a NI GPIB- USB-HS+ with a USB to GPIB cable, (PFI Part umber A10498P1). Model SCB-16FA Installation and Programming Instructions Rev. B Precision Filters, Inc.

  • Page 13: Model Scb-16Fa Installation

    2.2.3 Physical Requirements The Model SCB-16FA weighs 4.6 lb. net. The unit can be bench or rack mounted. The unit is 19 inches wide by 1.75 inches high (1U) by 10 inches deep. Provide adequate room in front the unit for connecting cables to the front panel and around the both sides of the unit for airflow, see below.

  • Page 14: Airflow

    If the equipment is damaged, file a claim with the carrier and forward a copy to Precision Fil- ters. Precision Filters will notify you of the disposition of the equipment and will arrange for repair or replacement without waiting for a settlement of the claim against the carrier. Retain the shipping container and packing material for the carrier’s inspection or for reuse.

  • Page 15: Mounting The Model Scb-16Fa

    PC Host Computer Connection To control the Model SCB-16FA system, you need a PC host computer with a Windows 7 or higher operating system installed. The Graphical User Interface (GUI) control program is included with the system. Option F provides NIST traceable verification software.

  • Page 16: Ethernet Connection Configurations

    Configurations are described in the sections that follow. Direct Connection A direct connection between a PC host computer and a single Model SCB-16FA system is reliable and the simplest configuration. In this configuration, only one system is connected to the PC host computer. See Figure 2.

  • Page 17: Network Switch Connection

    Note: An advantage of the network switch connection method is that the Ethernet switches feature connection status LEDs, which can be used to verify proper system operation. Rev. B Model SCB-16FA Installation and Programming Instructions Precision Filters, Inc.

  • Page 18: Dual Corporate Network Connection (Recommended)

    Page 10 Dual Corporate Network Connection (Recommended) The dual corporate network connection is recommended because the Model SCB-16FA systems and test subsystem equipment are connected to the PC host computer by a separate Ethernet connection. Because the systems and test equipment are not connected directly to the corporate Ethernet network, they are separated from networked equipment that can cause high data traffic across the network and unexpected interruption of an ongoing test.

  • Page 19: Corporate Network Connection (Not Recommended)

    2.7.1 Input and Output Connections The Model SCB-16FA has 16 input BNC connectors labeled 0 through 15 on the lower row of BNC connectors and 16 output BNC connectors labeled 0 through 15 on the upper row of BNC connectors. Figure 6 shows the location of the input and output connectors.

  • Page 20: Test Instruments Connections

    Ethernet interface. Below is a general guide for connecting test instruments and a scope to the SCB-16FA system. • A Function/Waveform Generator is used to provide an external test signal to the system’s test bus.

  • Page 21: Signal Ground Selection

    Figure 8 Signal Ground Post and Isolated/Chassis Ground Switch Locations Bank Isolation The Model SCB-16FA’s Isolated mode can be used to reference all channels to a remote ref- erence other than earth ground. Called bank isolation, this can be useful if a distant ground causes the common source (to all channels) to be at some potential beyond the ±10 V input...

  • Page 22: Power Connector

    The Power In connector (Figure 9) is located on the right side of the unit’s front panel. The Model SCB-16FA requires input power of 10.8–30 VDC @ 50 W maximum, applied at the front panel Power In connector. Additional mating power entry connectors (PFI Part number A12486G2) and external AC/DC power supplies (PFI Part number B11332G3) are available.

  • Page 23: Scb-16Fa Operating Instructions

    SCB-16FA Operating Instructions Introduction This section describes the commands and functions that are specific to the Model SCB-16FA system using the SCB-GUI-WIN (GUI) software. This section is an extension of the SCB- GUI-WIN Programming Instructions manual. The SCB-GUI-WIN Programming Instructions manual describes installing the GUI, setting an IP address, and general commands and func- tions that are common to all SCB systems.
  • Page 24 • Channel Control Section The Channel Control section let you program individual channels in a control group. • Message Window This window displays various warning messages and error codes. Model SCB-16FA Installation and Programming Instructions Rev. B Precision Filters, Inc.

  • Page 25: Scb-16Fa System Setup Options And Reports

    Run, Test Bus and Short as shown in Figure 11. These input source options are de- scribed below. • Run Run is the normal operating mode. The input source is the SCB-16FA system’s input con- nectors. • Test Bus Test Bus mode switches the channel input source to the system’s front panel Test connector,...
  • Page 26 When the SCB power is turned off, the monitor relay opens so as to not load down other systems that are using a daisy chained monitor bus. Model SCB-16FA Installation and Programming Instructions Rev. B Precision Filters, Inc.

  • Page 27: Channel Fault/Overload Indicators

    3.2.3 Channel Fault/Overload Indicators The SCB-16FA system has three channel overload/fault indicators, as shown in Figure 13: • OVL: Channel Fault/Overload indicator • HI: IEPE bias higher than user-specified limit • LO: IEPE bias lower than user-specified limit Figure 13 Channel Fault/Overload Indicators Rev.

  • Page 28: Channel Fault/Overload

    The bias high (HI) and bias low (LO) indicators identify a fault created by an IEPE sensor DC bias voltage that is above or below user-specified limits. See Section 3.2.6, Bias Low/High Limits. Model SCB-16FA Installation and Programming Instructions Rev. B Precision Filters, Inc.

  • Page 29: Muting Faulty Sensors

    When the Mute button is OFF, all channel functions and settings are returned to normal. Figure 15 Mute Button Rev. B Model SCB-16FA Installation and Programming Instructions Precision Filters, Inc.

  • Page 30: Iepe Bias Report

    If the bias signal drops below the set limit, the LO indicator on the Channel Fault/Overload panel turns red. If the bias signal rises above the set limit, the HI indicator on the Channel Fault/Overload panel turns red. Model SCB-16FA Installation and Programming Instructions Rev. B Precision Filters, Inc.

  • Page 31: Gain Settings

    The gain setting are entered in ether X (default) or dB. To toggle between X and dB, click button in the Gain group control. To select a gain setting, click in the Gain field and select a setting from the drop-down menu. Rev. B Model SCB-16FA Installation and Programming Instructions Precision Filters, Inc.

  • Page 32: Iepe Current Levels

    The FILTER_AMP input mode disconnects the IEPE current source from the sensor, making the system function as a standard filter/amplifier system. When FILTER_AMP is selected, the bias levels are disabled. Model SCB-16FA Installation and Programming Instructions Rev. B Precision Filters, Inc.

  • Page 33: Filter Type

    • Reporting the chassis ISO/GND Switch setting • Reporting internal temperature of the SCB frame Figure 22 Setup Button To open the Setup panel, click on the any Setup button Rev. B Model SCB-16FA Installation and Programming Instructions Precision Filters, Inc.

  • Page 34: Reporting The Iso/Chassis Gnd Position

    Figure 23 SCB_16FA Setup Panel Reporting the ISO/Chassis GND Position The SCB-16FA Setup panel reports the position of the ISO/Chassis GND switch on the front panel. The switch can be set to either ISO (isolated) or to Chassis Ground (GND).

  • Page 35: Scb Factory Acceptance Tests

    Page 27 SCB Factory Acceptance Tests The self-test subsystem for the SCB-16FA system is a complete solution for performing both annual equipment calibration and run time performance verification. The tests check out all critical specifications, are NIST traceable, and are the same manufacturing tests that are run at the factory.
  • Page 36 SCB-16FA Operating Instructions Page 28 Model SCB-16FA Installation and Programming Instructions Rev. B Precision Filters, Inc.

  • Page 37: Lcs Remote Command Line Interpreter

    The LCS remote interactive command line interpreter allows the SCB systems to function as servers on an Ethernet network. This section describes the LCS remote commands specific to the Model SCB-16FA system and is an extension of the SCB-GUI-WIN Programming Instructions manual.

  • Page 38: Lcs Command Format

    Model SCB-16FA LCS Command Line Interpreter Page 30 The terminal emulator program provides a terminal setup panel, similar to the one shown in Figure 26. Select CR & LF from the Transmit drop-down menu and select Local Echo to have commands reflected on the control display.

  • Page 39: Command Status Or Current Value

    • LCS software version number • Built date and time of the software Example of the idn command: SCB: idn; idn:Precision Filters SCB LCS version S12430V1.0, built July 10 2019, 10:08:03; Rev. B Model SCB-16FA Installation and Programming Instructions Precision Filters, Inc.

  • Page 40: System Configuration

    • List of channels numbers The following is an example of the config; command: SCB: config config: chan_count=32, cpc=32; config: SCB-16FA-100K-BU2-IEPE-F SN:201712-003 { 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15}; 4.4.4 Test Mode The Test Mode command lets you select and report a channel’s input source.

  • Page 41: System Monitor Output Options

    Model SCB-16FA LCS Command Line Interpreter Page 33 4.4.5 System Monitor Output Options The mon command lets you manage the source of the system monitor output. You can use the monitor output connector to view the output with a scope or other measuring device of a selected channel or an external test signal from a programmable function generator connected to the test input connector.

  • Page 42: Monitor Short

    Model SCB-16FA LCS Command Line Interpreter Page 34 Monitor Short To select the Short monitor option, type mon:short. When Short selected, the high and low monitor bus inputs are shorted together to the ground. Short is useful for diagnosing noise and DC offset in the monitor bus without the presence of the external signal.

  • Page 43: Check Overloads

    <TESTBUS>, <SHORT>, <EXTTEST>, <OFF>; 4.4.6 Check Overloads The SCB-16FA system has three channel fault/overload report types: • fil indicates an overload at the input to the filter. • short indicates the IEPE bias voltage is lower than the user-specified limit.

  • Page 44: High And Low Bias Reports

    Model SCB-16FA LCS Command Line Interpreter Page 36 SCB: check_ovlds No overloads at time 221 High and Low Bias Reports Bias high (open) and bias low (short) identify a fault created by an IEPE sensor DC bias volt- age that is above or below user-specified limits. Use the high_fault_val and low_fault_val commands to set the high and low fault limits.

  • Page 45: Fault Scan Enable

    Model SCB-16FA LCS Command Line Interpreter Page 37 In the following example, the low threshold limit for channels 0 though 3 is set to 0: SCB: low_fault_val:0,0,1,2,3 low_fault_val:0,0; low_fault_val:0,1; low_fault_val:0,2; low_fault_val:0,3; In the following example, the high threshold limit for channels 0 though 1 is set to 24.976: SCB: high_fault_val:24.976:,0,1...

  • Page 46: Iepe Bias Measurement

    4.4.10 Muting Faulty Sensors The mute command enables or disables the Mute mode on the SCB-16FA system. When the Mute mode is ON, the channel is placed in the quietest quiescent state, minimizing the possi- bility of coupling noise on properly functioning channels from a faulty or failed sensor. Mute mode is also useful to terminate unused channels in a safe and quiet state.

  • Page 47: Setting Gain

    Model SCB-16FA LCS Command Line Interpreter Page 39 To disable the Mute mode for all channels, enter mute: followed by off, in the following example only three channels are shown: SCB: mute:off mute:off,0; mute:off,1; mute:off,2; … 4.4.11 Setting Gain The gain command reports and sets the programmable gain to either 1, 2, 5, 10, 20, 50, 100, 200, 500, or 1000X.

  • Page 48: Input Mode

    Model SCB-16FA LCS Command Line Interpreter Page 40 4.4.13 Input Mode Use the input_mode command to select how the IEPE accelerometer is connected, either grounded, isolated, or current source disconnected from the sensor. input_mode:[iepe_gnd|iepe_iso|filter_amp|?][,<chan_list>] • IEPE_GND Select IEPE_GND input mode when the connected sensor is not grounded (sensor float- ing).

  • Page 49: Reporting The Iso/Chassis Gnd Position

    In the example below the ISO/Chassis Ground switch position is set to ground (GND). SCB:iso_sw; iso_sw:GND; 4.4.16 Frame Temperature Report The tsense_value command reports the temperature of the interior of the SCB-16FA frame in degrees Celsius. tsense_value:?; 4.4.17 Calibration Information Report The cal_info command reports the last calibration date and calibration number of the system.

  • Page 50: Set Test Bus Monitor Source And Parameters

    Model SCB-16FA LCS Command Line Interpreter Page 42 4.4.18 Set Test Bus Monitor Source and Parameters The following commands set the test monitor source and parameters before running Factory Acceptance Test (Option F FAT). CAUTION These commands are used by the factory for test and debugging the system and should only be used for limited purposes and for only specific test functions.

  • Page 51: Monitor Select

    Model SCB-16FA LCS Command Line Interpreter Page 43 Monitor Select The tst_monmode command selects the signal source placed on the monitor bus. In addition to the normal monitor point, a variety of specific points are available for monitoring for spe- cific FAT tests.
  • Page 52 Model SCB-16FA LCS Command Line Interpreter Page 44 This page intentionally blank. Model SCB-16FA Installation and Programming Instructions Rev. B Precision Filters, Inc.

  • Page 53: Support And Service

    Customer Service E-Mail: customer-service@pfinc.com Fax: 607-277-4466 Service and Repair If equipment is being returned to Precision Filters for service or repair, contact the factory for a Return Authorization Number. To obtain a Return Authorization Number contact Precision Filters: Phone: (607) 277-3550...
  • Page 54 Support and Service Page 46 This page intentionally left blank. Model SCB-16FA Installation and Programming Instructions Rev. B Precision Filters, Inc.

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