Troubleshooting P54x/EN TS/La4
MiCOM P543, P544, P545 & P546
(TS) 12-1
TS
CONTENTS
(TS) 12-
1. INTRODUCTION 3
2. INITIAL PROBLEM IDENTIFICATION 3
3. POWER UP ERRORS 3
4. ERROR MESSAGE/CODE ON POWER-UP 4
5. OUT OF SERVICE LED ILLUMINATED ON POWER UP 5
6. ERROR CODE DURING OPERATION 6
6.1 Failure of co-processor card 6
7. MAL-OPERATION OF THE RELAY DURING TESTING 7
7.1 Failure of output contacts 7
7.1.1 High break outputs 7
7.2 Failure of opto-isolated inputs 8
7.3 Incorrect analog signals 8
7.4 Current differential failures 8
7.5 PSL editor troubleshooting 9
7.5.1 Diagram reconstruction after recover from relay 9
7.5.2 PSL version check 9
8. REPAIR AND MODIFICATION PROCEDURE 10
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