xiv 7SS52 V4 Manual
C53000-G1176-C182-1
8 Maintenance and Repair.................................................................................................................. 281
8.1 Maintenance ..................................................................................................................... 282
8.2 Fault Analysis ..................................................................................................................... 284
8.2.1 Evaluation of Operational Events ....................................................................................... 284
8.2.2 Checking the Auxiliary Voltage Supply ............................................................................... 285
8.2.3 Checking the LEDs on the Modules ................................................................................... 285
8.2.4 Analysis of Internal Communication Failures...................................................................... 287
8.3 Troubleshooting.................................................................................................................. 290
8.4 Repair ................................................................................................................................. 293
8.4.1 Replacing the Buffer Battery...............................................................................................294
8.4.2 Replacing the Fine-Wire Fuse ............................................................................................ 297
8.4.3 Startup with a Defective Bay Unit / Defective Fiber-Optic Cable........................................ 300
9 Technical Data.................................................................................................................................. 301
9.1 General Data ...................................................................................................................... 302
9.2 General Device Data ..........................................................................................................303
9.2.1 Analog Inputs and Outputs ................................................................................................. 303
9.2.2 Rated Auxiliary Voltage ...................................................................................................... 303
9.2.3 Binary Inputs....................................................................................................................... 304
9.2.4 Alarm Contacts ................................................................................................................... 304
9.2.5 Trip Contacts ...................................................................................................................... 305
9.2.6 Light Emitting Diodes.......................................................................................................... 305
9.2.7 Operation, Displays ............................................................................................................ 305
9.2.8 Serial Ports ......................................................................................................................... 306
9.2.9 Busbar Protection ............................................................................................................... 307
9.2.10 Circuit Breaker Failure Protection....................................................................................... 308
9.2.11 Overcurrent Protection in the Bay Unit ............................................................................... 309
9.2.12 Auxiliary Functions.............................................................................................................. 311
9.2.13 User-Configurable Functions (CFC) ................................................................................... 312
9.2.14 Electrical Tests ................................................................................................................... 313
9.2.15 Mechanical Tests................................................................................................................ 315
9.2.16 Climatic Stress Tests .......................................................................................................... 316
9.2.17 Service Conditions.............................................................................................................. 317
9.2.18 Design Versions.................................................................................................................. 317
9.2.19 MCBs for Device 7SS52x ................................................................................................... 318
9.3 Dimensions......................................................................................................................... 319
9.3.1 Central Unit......................................................................................................................... 319
9.3.2 Bay Unit .............................................................................................................................. 322