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EL1904
Beckhoff EL1904 User Manual
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Product description
EL1904
25
Version: 3.0.0
4.6
Dimensions
Fig.6: Dimensions of the EL1904
Width: 12 mm (side-by-side installation)
Height: 100mm
Depth: 68mm
4.7
Block diagram of the EL1904
Fig.7: Block diagram of the EL1904
The block diagram shows the basic configuration of a channel in the EL1904. The part with a red border is
present four times in the terminal.
24
26
Table of Contents
Table of Contents
3
Patents
5
Notes on the Documentation
5
Trademarks
5
Disclaimer
5
Limitation of Liability
6
Copyright
6
Documentation Issue Status
7
Staff Qualification
8
Safety and Instruction
9
Explanation of Symbols
9
Beckhoff Support and Service
10
For Your Safety
11
Duty of Care
11
Safety Image Signs
12
General Safety Instructions
13
Before Operation
13
In Operation
13
After Operation
13
System Description
14
The Beckhoff Bus Terminal System
14
Fig. 1 Slot and Key System and Screwless (Spring-Loaded) Connection System
14
Bus Coupler
15
Fig. 2 Bus Coupler (Ethercat)
15
Fig. 3 Twinsafe Terminals (Ethercat)
16
Bus Terminals
16
Power Contacts
16
E-Bus
16
Twinsafe
17
The I/O Construction Kit Is Extended Safely
17
Safety Concept
17
EL1904, EL2904 - Bus Terminals with 4 Fail-Safe Inputs or Outputs
18
EL6900 - Twinsafe Logic Terminal
18
The Fail-Safe Principle (Fail Stop)
18
Product Description
19
EL1904 - Twinsafe Terminal with 4 Digital Fail-Safe Inputs
19
Fig. 4 EL1904 - Twinsafe Terminal with 4 Digital Fail-Safe Inputs
19
Intended Use
20
Technical Data
22
Safety Parameters
23
Characteristic Curve of the Inputs
24
Fig. 5 Characteristic Curve of the Inputs
24
Dimensions
25
Block Diagram of the EL1904
25
Fig. 6 Dimensions of the EL1904
25
Fig. 7 Block Diagram of the EL1904
25
Mechanical Installation
26
Transport / Storage
26
Safety Instructions
26
Installation
26
Environmental Conditions
26
Operation
26
Fig. 8 Installation Position and Minimum Distances
27
Fig. 9 Example Configuration for Temperature Measurement
28
Fig. 10 Installation on the Mounting Rail
29
Electrical Installation
30
Fig. 11 Removal from Mounting Rail
30
Fig. 12 PE Power Contact
31
Fig. 13 Connection of a Cable to a Terminal Point
32
Fig. 14 EL1904 Pin Assignment
33
Fig. 15 Permitted Cable Length
34
Fig. 16 Cable Routing
34
Fig. 17 Typical Course of Test Pulses of the Inputs
35
Twinsafe Reaction Times
36
Fig. 18 Typical Response Time
36
Tested EL1904 Devices
37
Fig. 19 Worst Case Response Time
37
Operation in Potentially Explosive Atmospheres (ATEX)
38
Special Conditions
38
Identification
38
Inserting an EL1904
39
Inserting a Bus Terminal
39
Inserting a Bus Coupler
39
Configuration of the Terminal in Twincat
39
Further ATEX Documentation
39
Date Code and Serial Number
39
Fig. 20 Inserting an EL1904
40
Address Settings on Twinsafe Terminals with 65535 Possible Addresses
41
Fig. 21 Address Settings on Twinsafe Terminals with 65535 Possible Addresses
41
Entering a Twinsafe Address and Parameters in the System Manager
42
Fig. 22 Entering the Fsoe Address
42
Fig. 23 Setting the Connection of the Twinsafe Connection
43
Fig. 24 Setting the Parameters of the Twinsafe Connection
43
Fig. 25 Maximum Permissible Sensor Self-Test Duration of 350 Μs
44
Diagnostic Leds
46
Diagnostics
46
Diagnostic Objects
47
Service Life
49
Fig. 26 Unique Serial Number of a Twinsafe Terminal
49
Maintenance and Cleaning
50
Decommissioning
51
Disposal
51
Returning to the Vendor
51
Appendix
52
Volatility
52
Focus of Certificates
53
Certificates
54
Fig. 27 EL1904 EC Declaration of Conformity
54
Table of Figures
55
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Beckhoff EL1904 Specifications
General
Brand
Beckhoff
Model
EL1904
Category
Touch terminals
Language
English
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