4.4 Standard CTS Logic 477
4.5 CTS Blocking 477
4.6 Application Notes 477
4.6.1 Setting Guidelines 477
4.6.2 Differential CTS Setting Guidelines 478
5 Trip Circuit Supervision 479
5.1 Trip Circuit Supervision Scheme 1 479
5.1.1 Resistor Values 479
5.1.2 PSL for TCS Scheme 1 480
5.2 Trip Circuit Supervision Scheme 2 480
5.2.1 Resistor Values 481
5.2.2 PSL for TCS Scheme 2 481
5.3 Trip Circuit Supervision Scheme 3 481
5.3.1 Resistor Values 482
5.3.2 PSL for TCS Scheme 3 482
Chapter 19 Digital I/O and PSL Configuration 483
1 Chapter Overview 485
2 Configuring Digital Inputs and Outputs 486
3 Scheme Logic 487
3.1 PSL Editor 488
3.2 PSL Schemes 488
3.3 PSL Scheme Version Control 488
4 Configuring the Opto-Inputs 489
5 Assigning the Output Relays 490
6 Fixed Function LEDs 491
6.1 Trip LED Logic 491
7 Configuring Programmable LEDs 492
8 Function Keys 494
9 Control Inputs 495
Chapter 20 Fibre Teleprotection 497
1 Chapter Overview 499
2 Protection Signalling Introduction 500
2.1 Unit Protection Schemes 500
2.2 Teleprotection Commands 500
2.3 Transmission Media and Interference 501
3 Fibre Teleprotection Implementation 502
3.1 Setting up the IM64 Scheme 502
3.1.1 Fibre Teleprotection Scheme Terminal Addressing 503
3.1.2 Setting up IM64 504
3.1.3 Two-Terminal IM64 Operation 504
3.1.4 Dual Redundant Two-Terminal IM64 Operation 504
3.1.5 Three-Terminal IM64 Operation 505
3.1.6 Physical Connection 506
3.2 Communications Supervision 509
4 IM64 Logic 511
5 Application Notes 513
5.1 Alarm Management 513
5.2 Alarm Logic 513
5.3 Two-ended Scheme Extended Supervision 514
5.4 Three-ended Scheme Extended Supervision 514
Chapter 21 Electrical Teleprotection 517
P543i/P545i Contents
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