DEWESOFT DEWE-43 Page 11 Technical Reference Manual Download | Manualshive

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Page 11

Printing version 2.6

•JUL2017

3.1 Hardware revisions

DEWE-43 V

Initial version

DEWE-43 A

Added isolated CAN ports

DEWE-43 A

ISO-POWER

Added isolated power supply

Analog input configuration:

Block diagram of analog input (all analog inputs are identical):

ADC

AGND

AGND

IN+

IN-

Input

Termination

Overvoltage

Protection

Pre-filter

Differential

Amplifier

A/D

Converter

The high input impedance (10MΩ ground referenced)

has no distortion influence

on the measured signal.

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Summary of Contents for DEWE-43

Page 1: ...unique data acquisition systems These are top quality instruments which are designed to provide you years of reliable service This guide has been prepared to help you get the most from your investmen...

Page 2: ...3 1 Hardware revisions 11 4 Device operation 20 4 1 Connectors 21 4 2 Typical sensor connection 22 Bridge sensor connection 24 5 Driver installation 27 6 Using DEWE 43 in DEWESoft 29 6 1 Before using...

Page 3: ...hall not be liable for any direct indirect special incidental or consequential damages whether based on contract tort or any other legal theory in connection with the furnishing of this document or th...

Page 4: ...History Version 2 6 Released JUL 2017 Copyright 2017 DEWESOFT d o o This document contains information which is protected by copyright All rights are reserved Reproduction adaptation or translation w...

Page 5: ...NGS The following general safety precautions must be observed during all phases of operation service and repair of this product Failure to comply with these precautions or with specific warnings elsew...

Page 6: ...operly handled at it s end of life Please recycle this product in an appropriate way to avoid an unnecessary pollution of the environment and to keep natural resources This symbol indicates that this...

Page 7: ...rained personnel If necessary return the product to DEWESoft sales and service office for service and repair to ensure that safety features are maintained Keep away from live circuits Operating person...

Page 8: ...safety features are maintained Before opening the instrument experts only or exchanging the fuse in the power module disconnect power Don t touch internal wiring Don t use higher supply voltage than...

Page 9: ...r supply 5V 0 1 bridge sensor supply Overvoltage protection 70V input protection Dynamic range 107dB 10V range DC accuracy 10 V range 0 05 of value 1 mV 1 V range 0 05 of value 0 2 mV 100 mV range 0 0...

Page 10: ...ation Pull up with 100k Input low level 0 7V to 0 7V Input high level 2V to 5V Overvoltage protection 30V input protection CAN bus Number of ports 2 Interface type CAN 2 0B up to 1 MBit sec Special ap...

Page 11: ...SO POWER Added isolated power supply Analog input configuration Block diagram of analog input all analog inputs are identical ADC AGND AGND IN IN Input Termination Overvoltage Protection Pre filter Di...

Page 12: ...The bandwidth between 0 Hz and the Nyquist frequency is called Nyquist bandwidth Signals exceeding this frequency range can not be converted correctly by the sampler For example the sample rate is 10...

Page 13: ...digital anti aliasing filter This filter has no phase error and an extremely flat frequency response It also has an extremely sharp roll off near the cutoff frequency 0 38 to 0 494 times the sample r...

Page 14: ...DEWE 43 Page 14 Dewe 43 Technical reference manual Sample rate 51 2kS s to 102 4kS s Sample rate 102 4kS s to 200kS s...

Page 15: ...and 12 8 MHz 128 x 100 kHz this signal will be aliased into the passband region of the digital filter and is not rejected The analog filter removes these components before they get to the digital filt...

Page 16: ...DEWE 43 Page 16 Dewe 43 Technical reference manual Idle channel noise input terminated with 50...

Page 17: ...Printing version 2 6 JUL2017 Spectral noise 50 termination 8 averages 16k lines 50kS s Spectral noise 50 termination 10 averages 16k lines 100kS s Spectral noise 50 termination 10 averages 16k lines...

Page 18: ...ge ranges will be clipped and introduced as large errors that can be easily identified in frequency spectrum The figure bellow show the allowable common mode input voltages for various input voltages...

Page 19: ...ction like simple event counting up down counting and gated event counting also period time pulse width two edge separation frequency and all encoder measurements are supported All counter inputs can...

Page 20: ...DEWE 43 Page 20 Dewe 43 Technical reference manual 4 Device operation Top side connectors Side connectors Power USB Sync Common GND...

Page 21: ...4 1 2 5 Pin Assignment 1 5V 2 CAN_LOW 3 DGND 4 RES 5 RES 6 DGND 7 CAN_HIGH 8 RES 9 12V Counter input mating cable connector FGG 1B 307CLAD52 6 7 3 4 1 2 5 PinAssignment 1 IN0 A 2 IN1 B 3 IN2 Z 4 RES...

Page 22: ...DEWE 43 Page 22 Dewe 43 Technical reference manual 4 2 Typical sensor connection For correct measurements it is highly recommended to ground the DEWE 43 with GND banana plug on the side...

Page 23: ...ometer sensor connection Connector Connector Exc IN Sns IN 2 1 7 Sns Exc 6 3 8 SHD GND 4 Important If sensors or other signal sources with isolated external power supply are used ground signals of DEW...

Page 24: ...SHD GND 4 Sensor 4 wire sensor connection Connector Connector Exc IN Sense IN 7 1 2 Sense Exc 6 3 8 SHD GND 4 Half bridge 10V excitation Sensor 3 wire sensor connection Connector Connector Exc IN Sens...

Page 25: ...se Exc 6 3 8 SHD GND 4 Note Bridge completion needs to be done in the connector Full bridge 5V excitation The excitation level between EXC and EXC is 10 V If lower excitation 5V is needed please conne...

Page 26: ...sor Bridge Adapter Sensor 3 wire sensor connection with DeweSoft Bridge Completion Adapter Connector Exc IN Sns IN 7 1 2 Sns Exc 6 3 8 SHD GND 4 5 8 2 Bridge Adapter 3 wire sensor connection with Dewe...

Page 27: ...l the driver of DEWE 43 please connect the device to the PC with USB cable If the driver is not installed the following message will appear Press No not this time and click Next to continue Select Ins...

Page 28: ...reference manual The driver should be located on the system CD You can either point out this location or just simply select Search removable media The installation procedure will install the driver Fi...

Page 29: ...is connected before the device is connected via USB to the computer 6 2 Hardware setup To enable analog input and counter in DEWESoft go to System Hardware setup and choose DEWESoft USB device To enab...

Page 30: ...h system 6 2 1 Start up of the device Please connect the power supply of the device prior to connecting it to the USB Then make sure that the device is connected to the PC when starting up DEWESoft If...

Page 31: ...Page 31 Printing version 2 6 JUL2017 If you plan to simply review the files please select Demo mode If you plan to do a measurement connect the device and click refresh button...

Page 32: ...inputs The use of analog inputs CAN inputs and digital interface is the same as with all other DAQ devices which are supported in DEWESoft Please consult DEWESoft user s manual for more information If...

Page 33: ...acquiring data and the USB connection is lost the acquisition will stop In this case reconnect the unit and restart the acquisition with reconnect button In this case if the data was being stored the...

Page 34: ...download the latest firmware from DEWESoft web site Then run USB Firmware Upgrade Tool program Next select DEWESoft USB in the Device combo box Press button select _xxx fwu file and click Open Press...

Page 35: ...instrument in DEWESoft please go to System Hardware setup and follow the instruction from user s manual to select DEWESoft USB device in Analog and CAN tab sheet If they are selected deselect the DAQP...

Page 36: ...ort of MSI adapters and digital inputs With the purchase of DEWE 43 you are entitled for free upgrades of the software and firmware within all DEWESoft versions 6 and 7 In DEWESoft 7 select the 43 lik...

Page 37: ...Page 37 Printing version 2 6 JUL2017...

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