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Manuals and User Guides for L-Card E20-10. We have
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L-Card E20-10 manual available for free PDF download: User Manual
L-Card E20-10 User Manual (67 pages)
Measuring voltage converters
Brand:
L-Card
| Category:
Media Converter
| Size: 1.32 MB
Table of Contents
Table of Contents
4
1 What this Document Is about
6
On Revisions А, B and В.01 of Modulee20-10
6
Designation System
7
Design Versions
7
How to Read this Manual
8
2 Primary Application Properties
9
Complete List of User Differences of Revisions А, В and B.01 for E20-10 Module
11
3 General Description
14
Device Application
14
Appearance
14
Fig. 3-1. E20-10 Revision А Appearance
15
Fig. 3-2. E20-10 Revision В Appearance
15
Module Configuration
16
Design Versions
16
Standard Supply Package
16
Lcomp Library
17
Library Lusbapi
17
Operational Software
17
Software Delivery
17
FPGA Firmware Versions
18
Optional Software
18
4 Installation and Customization
20
Module Connecting to Computer
20
USB Drivers Installation
20
USB Drivers Installation from Lcomp
20
USB Drivers Installation from Lusbapi
20
Recognition of the Module
21
Differences in USB Driver of Lusbapi Library
22
5 Overview of the Hardware Components and Operation Principles
25
Block Diagram
25
Fig. 5-1. Block Diagram E20-10
27
Fig. 5-2. Explanation of Data Acquisition Equipment Logic Interaction in E20-10
27
E20-10 Operating Principle
28
Channel Sampling Principle
29
Synchronization in E20-10
30
Synchronization Modes
32
Table5-1. Modes of Synchronization on ADC Conversion Frequency (on SYNC Signal)
32
Table5-2. Acquisition Start Synchronization Modes (on START Signal)
32
Table 5-3. Capability to Set Additional Permit Conditions for ADC Data Recording in Buffer Memory
33
Table5-4. "On Level" Synchronization Modes
33
Table5-5. Acquisition Stopping Conditions
34
Fig. 5-3. Synchronization Mode Diagrams
36
Coding of Data Continuous Area Start in E20-10 of Revision B
37
Coding of Word Size Overloading Sign E20-10 or Revision А
37
Data Format of E20-10
37
ADC Word Size Overflow Warning
38
FIFO Buffer and Its Overloading Elimination Logic
38
Readings Adjustment (Calibration)
38
DAC Optional
39
6 Connection of Signals
40
General Information
40
External Connectors
40
Analog Signal Connectors
41
Fig. 6-1. Analog Input Connectors
41
Fig. 6-2. Analog Output Connectors
41
Table. 6-1.On Connectors Analog Signal Assignment
42
Digital Signal and External Power Connectors
43
Fig. 6-3. Digital Signal and External Power Connectors
43
Table 6-2. Connector DIGITAL I/O Signals
44
Characteristics of Signal Line Inputs and Outputs
45
Operating Mode
45
Table 6-3. Characteristics of Signal Lines Inputs and Outputs, Operating Mode
45
Power-Off Mode
46
Table 6-4. Characteristics of Signal Lines Inputs and Outputs, off Mode
46
External Power Supply Input Characteristic
47
Limiting through Currents
47
Table 6-6. External Power Supply Input Characteristics
47
Table6-5. Maximum Permissible through Currents
47
External Power Supply Outputs Characteristic
48
Table 6-7. External Power Supply Outputs Characteristic
48
Specification and Connection Examples
49
Connections to USB
49
Multimodule Connections
50
Circuits GND, GND* and AGND
51
Fig. 6-4. Circuits GND, GND* and AGND
51
ADC Input Connecting
52
Connecting to High-Resistance Output and Alternate Current Output
52
Intrinsic Input Current of ADC Analog Input
52
Fig. 6-5. Equivalent Circuits of ADC Input Circuit Via Constant Current (Differences in Revisions a and B)
52
On Effect of through Currents on Signal-To-Noise Ratio
53
On Standard Feeler Oscillographic Gauge Connectivity
53
Digital Lines and Synchronization Lines Connecting
54
How Can You Find out that the Through-Currents Degrade the Signal-To-Noise Ratio in Your Connection Diagram
54
How to Solve the Problem if the through Currents Are Detected
54
On Disconnected ADC Inputs
54
7 Specifications
56
Adc
56
E20-10, E20-10-I, E20-10-D-I Limits of the Permissible Relative Basic Error of Measuring the Ac Voltage
58
E20-10-1, E20-10-1-I, E20-10-D-1-I: Limits of the Permissible Relative Basic Error of Measuring the Ac Voltage
58
Adc Synchronization System
59
Dac
59
Digital Lines
60
Power
61
Physical Properties
62
Operation Conditions
63
Normal Conditions
63
Operating Conditions
63
8 Problems Solution under Abnormal Situations
64
How to be Consulted
65
9 Bibliography
66
List of Tables
67
List of Figures
67
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