SIGnal Workbench€¦ · SIGnal Workbench Product Description (SIGWB000-DESC Revision A)/Page 4 of...

Product Description

SIGnal Workbench™

Programmable Signal Conditioning System

The Programmable Signal Conditioning System is comprised of a 4U chassis that can be table-top or rack-mounted (requires 5U of rack space for exhaust air at the top). It is designed to accept up to 16 Four Channel Programmable Signal Conditioning Modules. The chassis contains a 250 Watt quad-output power supply, a Chassis Controller Module, a Signal Output Module and a 17-slot backplane used to communicate with the Signal Conditioning Modules.

SIGnal Workbench Product Description (SIGWB000-DESC Revision A)/ of 20

Up to 16 Programmable Signal Conditioning Modules such as the CQ9460-04, are configured as needed provide selectable gain from 1 to 4096, constant Voltage excitation from 0 to 10V, constant current excitation of 0 to 20mA and full / half / quarter bridge completion. Additionally, IEPE mode supports AC coupled transducers such as accelerometers. With a 100KHz bandwidth and the AC coupled programmable constant current source, the SIGnal Workbench system is also well suited for Dynamic Stress and Strain measurement for turbo machinery. The amplified signals from the Programmable Signal Conditioning Modules are provided to the input of standard analog input (digitizer) cards that reside in the host system. Various types of analog input cards may be used depending on the speed and accuracy required for the measurements. A dedicated calibration bus is incorporated on the 17-slot backplane to provide a common reference Voltage for each card and channel. A programmable reference Voltage source is provided by the Chassis Controller Module. A connector for an external reference Voltage source is provided for greater flexibility.


Chassis Controller Module The SIGnal Workbench Signal Conditioning Modules are programmed by the CQ9499 Chassis Controller Module via a 100BT Ethernet interface to the host system. To simplify system installation, the CQ9499 defaults to a unique IP address which is printed on the front of the card along with the MAC address. A different IP address may set with DHCP if desired. The CQ9499 Chassis Controller module plugs into the slot 1 of the HS000-

SIGWB signal conditioning chassis from the front side, and provides the programmable interface between the host system and the backplane bus. The CQ9499 Chassis Controller module is an ARM9 based processor running an embedded Linux operating system. The primary purpose of the controller is to drive and receive data from the backplane bus based on commands issued to from the host system via the Ethernet interface. A host based Application Programming Interface (API) for RedHawk Linux is available for the CQ9499 Chassis Controller Module.

The host based programming information for the CQ9499 Chassis Controller module as well as calibration functions and front panel LED indicator definitions can be found in the following document: Release Notes for the “CCUR Sigwb Driver Rev. x.x.x for RedHawk x.x.x Linux OS for the P9499 controller and P9460 AMP boards”

CQ9499 Shown Without RFI Shield


Rear Transition Module (RTM) Each 4-Channel Amplifier card gets a corresponding RTM. The Model CQ9260-RTM is a 4U printed circuit card that slides into the rear transition area of the chassis and routes the signals from four 9-Pin D-SUB field wiring connectors through the backplane into the corresponding amplifier inputs.

9-PIN DSUB FIELD SIGNAL INPUT CONNECTOR

PIN-1 EXCITATION – PIN-2 SENSE- PIN-3 SIGNAL+ PIN-4 EXTERNAL SHUNT PIN-5 SHIELD PIN-6 EXCITATION+ PIN-7 SENSE+ PIN-8 SIGNAL+ PIN-9 SHIELD

1 2 3 4 5

6 7 8 9

A B C D

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 OUT

Rear View of Fully Populated HS000SIGWB Chassis


The RTM can be configured by changing on-board jumpers to bypass the amplifiers and route the input signal directly to the Amplifier Output Module. The bypass mode allows single-ended input signals that do not need conditioning to be terminated at the rear of the SIGnal Workbench Chassis for convenience.

RTM Bypass Mode

Connector Shell Grounding

In certain cases to prevent ground loops, it may be necessary to have the connector shell isolated from the SIGnal Workbench chassis ground. Removing JP3, 6, 9 and 12 allows the connector shell to float and be at a different potential than the chassis. In this case the field wiring shields should not be connected at the SIGnal Workbench end. In addition to the standard 9-Pin D-SUB RTM, RTMs are available for Thermocouple input. Model CQ9261-04TJ supports Type J and Model CQ9261-04TK supports Type K. Other types are under consideration. The Thermocouple RTMs are stand alone and do not require an associated amplifier card. The four channel RTM-TC contain on-board Cold Junction Compensation (CJC) and Fixed Gain Amplifiers on-board. The CJC temperatures will be read by the Chassis Controller Module and made available to the host system via the Ethernet interface.

MODE JUMPER

A to AMP (Normal)

JP1 2-3 JP2 2-3

A to OUT (Bypass)

JP1 2-1 JP2 2-1

B to AMP (Normal)

JP4 2-3 JP5 2-3

B to OUT (Bypass)

JP4 2-1 JP5 2-1

C to AMP (Normal)

JP7 2-3 JP8 2-3

C to OUT (Bypass)

JP7 2-1 JP8 2-1

D to AMP (Normal)

JP10 2-3 JP11 2-3

D to OUT (Bypass)

JP10 2-1 JP11 2-1

Normal Mode

JUMPER

A Shell to Chas. Gnd

JP3 1- 2

B Shell to Chas. Gnd

JP6 1- 2

C Shell to Chas. Gnd

JP9 1- 2

D Shell to Chas. Gnd

JP12 1- 2


Amplifier Output Module The 64 amplifier outputs are routed on the backplane to the Amplifier Output Module. The module slides in behind the Chassis Controller and interfaces to the host system analog input card(s) via two 68-pin SCSI-2 style connectors.

In certain cases it may be necessary to isolate the SIGnal Workbench Chassis ground from the host system ground. Removing jumper PJ1 disconnects chassis ground from the return lines in the interface cable. Removing jumper PJ2 disconnects chassis ground from the P2 and P3 connector shells. The pin-out of the Amplifier Output Module corresponds to the pin-out of the EDAS 68-pin adapter for the GS 24DSI card, allowing the use of off-the-shelf interface cabling. The Concurrent CP-AD3224-DS 32-channel, 24-bit Delta Sigma A/D PCIe Card also conforms to this pin-out specification.


P2 P3

Note: The CHxxLO lines are connected to Analog Ground on the backplane.

Pin-Out of CQ9200 Amplifier Output Module


Channel Map of Signal Conditioning Inputs to Amplifier Outputs

RTM Connector Output Channel

RTM Connector Output Channel

1 A 00 9 A 32

1 B 01 9 B 33

1 C 02 9 C 34

1 D 03 9 D 35

2 A 04 10 A 36

2 B 05 10 B 37

2 C 06 10 C 38

2 D 07 10 D 39

3 A 08 11 A 40

3 B 09 11 B 41

3 C 10 11 C 42

3 D 11 11 D 43

4 A 12 12 A 44

4 B 13 12 B 45

4 C 14 12 C 46

4 D 15 12 D 47

5 A 16 13 A 48

5 B 17 13 B 49

5 C 18 13 C 50

5 D 19 13 D 51

6 A 20 14 A 52

6 B 21 14 B 53

6 C 22 14 C 54

6 D 23 14 D 55

7 A 24 15 A 56

7 B 25 15 B 57

7 C 26 15 C 58

7 D 27 15 D 59

8 A 28 16 A 60

8 B 29 16 B 61

8 C 30 16 C 62

8 D 31 16 D 63


Amplifier Module The CQS9460-04 Programmable Signal Conditioning module provides four channels of programmable transducer interface circuitry on a 3U x 220 mm euro-card. Each channel provides a programmable voltage output source and a fault protected Programmable Gain Amplifier (PGA). The voltage source mode allows the module to be configured as a strain conditioner. All of the functionality required for conditioning signals from sensors, that use ¼, ½ or full bridge transducer configurations are supported in this mode. Channels can also be configured as instrumentation amplifiers to monitor general-purpose analog input signals. Conditioned signals are driven out of the module by low impedance, high-speed operational amplifiers. The buffered output signals can be connected to the high impedance differential or single-ended input of virtually any analog to digital card to provide a complete signal conditioning and A to D conversion solution. The card has the ability to connect the inputs of the instrumentation amplifier to one of the four sources listed below: 1. Bridge completion and signal conditioning circuit 2. Directly to the input voltage 3. High accuracy reference voltage 4. Analog Ground

CQ9460 Shown Without RFI Shield


When the card is in the calibration mode, the inputs of the amplifier are connected to the analog ground and reference voltages to establish offset and gain correction coefficients for the various gains. These coefficients are then used by the analog input card and/or system level software to make offset and gain corrections to signal conditioned input voltages. Internal shunt resistors can also be switched in to calibrate the bridge completion circuits. Twelve LEDs are provided on the front panel to display the status of each channel. Three LEDs are assigned to each channel. Programming Information for the CQ9460-04 can be found in the following document: Reference Manual, SIGnal Workbench CQ9460-04 Four Channel Signal Conditioning Module – Document SIGWB9460-REF


SPECIFICATIONS General Information

Gain Range 1 to 4096 Frequency Response DC to 100K Hz Gain Accuracy ± 0.05 % Linearity ± 0.01 % Stability 50 ppm /ºC Input Noise 10 uV RMS Input Protection 125 V Input Type Differential Output Range ± 10 V @ 15 mA Output Impedance 50 Ω Short Circuit Protected Yes Bridge Completion

Configuration Full, Half, Quarter Auto Balance Yes, Programmable in software Completion Resistance 120 Ω or 350 Ω Accuracy 0.1 %, 5 ppm /ºC Voltage Excitation

Type Programmable Constant Voltage Range 0.00 V to 10.00 V (16-bit resolution) Accuracy 0.02 % Typical Output Current 100 mAmps Stability 50 ppm / ºC Short Circuit Protection Yes Current Excitation

Type Programmable Constant Current Range 0.00 mA to 20.00 mA (16-bit resolution)

Accuracy 0.1 % Typical Coupling to Amplifier AC Coupling for IEPE Vibration Sensors

Compliance Voltage 12 Volts DC Stability 50 ppm / ºC Typical Short Circuit Protection Yes Calibration Source

Type 1 Analog Ground or Calibration Bus - Programmable reference

source supplied from SIGnal Workbench Chassis Controller: 0-10 Volt (16-bit resolution) with divider network of 1-128 binary steps.

- External Voltage Standard Support via Front Connector

Type 2 Local or Remote Shunt Resistor Internal Shunt Resistors 51K Ω. 100K Ω Accuracy 0.1 %, 5 ppm / ºC Low Pass Filter (Optional)

Type Dedicated R - C Cut off Frequency 50 Hz, 500 Hz, 5K Hz

(Additional options available)


SPECIFICATIONS Environmental

Operating Temperature 0 to 50 ºC Storage Temperature -25 to 85 ºC Humidity 5 to 90 % non-condensing Physical

Dimensions 17-3/8”W x 7”H x 18”D 441.4mm x 177.8mm x 457.2mm Weight 35 Lbs. 15.9kg Power

Rated Voltage 100-250Vac Rated Current 3.7-1.2A Frequency 47-440Hz


Differences between Generation-2 and the Original SIGnal Workbench The Gen-2 SIGnal Workbench System uses the same Programmable Signal Conditioning Modules as the original design but has significant improvements in the packaging that enhances the ruggedness, upgradeability, serviceability and attractiveness of the system. The key feature of the Gen-2 system is the modular design. The Rear Termination Modules for field wiring, Power Supply Module and Fan Modules are easily replaced without the need to remove the chassis from the rack. Additionally, the use of Rear Termination Modules (RTMs) replaces a large amount of internal cabling and reduces the weight and depth from the original design. Thermocouples are now supported with special 4-Channel RTMs that include Cold Junction Compensators and fixed gain amplifiers which eliminate the requirement for a Programmable Signal Conditioning Module. The Gen-2 Controller card is functionally the same as the original, but has been revised with a different backplane connector. The only functional difference between the original SIGnal Workbench design and Generation-2 is that the pin-out of the DB-9 field connectors has changed to accommodate efficient printed circuit board layout.


Power Supply Specifications - P/N 720-1280230-901 Input Voltage: 100-250Vac Input Current: 3.7-1.2A Input Frequency: 47-440Hz

Output Voltage Maximum Load Peak Load Regulation +5 Volts 35 Amps 40 Amps +/- 2% +15 Volts 10 Amps 12 Amps +/- 3% - 15 Volts 6 Amps 8 Amps +/- 3% + 12 Volts 5 Amps 7 Amps +/- 3%

Fan Tray Specifications - P/N 720-1280231-901 Fans: Three Voltage: 12 Volts Watts: 1.9 (ea.) RPM: 2800 CFM: 49 Noise: 35.0 dBa Features: Washable Intake Filter


FIELD WIRING EXAMPLES

F u l l B r i d g e s e n s o r s w i t h r e m o t e

e x c i t a t i o n s e n s e

F u l l B r i d g e s e n s o r s w i t h r e m o t e s h u n t

6

8

1

3

4

7

8

2

1

3

9

6

3

9


H a l f B r i d g e s e n s o r s w i t h r e m o t e

e x c i t a t i o n s e n s e

Q u a r t e r b r i d g e s e n s o r s w i t h i n t e r n a l

b r i d g e c o m p l e t i o n

I E P E ( I C P ) C o n s t a n t C u r r e n t T y p e S e n s o r

7

2

6

1

3

6

3

9

9


Note: IEPE Sense connection is provided as safety feature to prevent

potential transducer damage due to current.

7

6

8

1

3

9


V o l t a g e A m p w i t h R e m o t e E x c i t a t i o n

S e n s e

V o l t a g e A m p w i t h L o c a l E x c i t a t i o n S e n s e

D y n a m i c S t r a i n G a u g e w i t h C o n s t a n t C u r r e n t E x c i t a t i o n

7

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2

1

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About Concurrent Concurrent (NASDAQ: CCUR) is a global software and solutions provider that

develops content delivery and real-time applications on a core foundation of high-

performance Linux® and storage technologies. The company serves industries

and customers that demand uncompromising performance, reliability, and

flexibility to gain a competitive edge, drive meaningful growth, and power brighter

ideas that enrich the lives of millions of people around the world every day.

Concurrent works closely with service providers, aerospace and defense

organizations, automotive manufacturers, and a diverse range of companies in

the manufacturing, financial, energy, and healthcare markets to launch innovative

solutions and help achieve their most ambitious endeavors. Offices are located in

North America, Europe and Asia. Visit www.ccur.com for further information or

follow us on Twitter.

Technical Contact: Bob Hartley Consulting Engineer Concurrent Real-Time 2881 Gateway Drive Pompano Beach, FL 33069 (954) 973-5460 [email protected] real-time.ccur.com ©2015 Concurrent Computer Corporation. Concurrent Computer Corporation and its logo are registered trademarks of Concurrent. All other Concurrent product names are trademarks of Concurrent, while all other product names are trademarks or registered trademarks of their respective owners. Linux® is used pursuant to a sublicense from the Linux Mark Institute. Document SIGWB000-DESC Revision A 013013

Concurrent makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Although

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1

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Signal +

Excitation -

http://www.ccur.com/

http://www.twitter.com/Concurrent_CCUR

mailto:[email protected]

http://www.real-time.ccur.com/


extensive editing and reviews are performed before release, CONCURRENT assumes no responsibility for any errors that may exist in this document. No commitment is made to update or keep current the information contained in this document. Concurrent does not assume any liability arising out of the application or use of any product or circuit described herein, nor is any license conveyed under any patent rights or any rights of others. Concurrent assumes no responsibility resulting from omissions or errors in this manual, or from the use of information contained herein. Concurrent reserves the right to make any changes, without notice, to this product to improve reliability, performance, function or design.

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