HEIDENHAIN TNC 430 PA - Page 6

HEIDENHAIN Service Manual TNC 426/430 C/P/M
20 Replacing Instructions..................................................................................................... 291
20.1 Important Information .............................................................................................. 291
20.2 NC Software Update for PGM Nr. 280 474/475........................................................ 292
20.3 NC Software Update for PGM Nr. 280 476/477, EPROM Hardware ........................ 297
20.4 NC Software Update for PGM Nr. 280 476/477, Flash Hardware............................. 302
20.5 Backup/Restoring Hard-Disk Data ............................................................................. 307
20.5.1 Data backup ..................................................................................................... 307
20.5.2 Restoring the data ........................................................................................... 309
20.6 Exchanging the Complete LOGIC UNIT .................................................................... 310
21 Inspection, Measuring and Test Equipment ................................................................. 311
21.1 Universal Test Adapter (Id.Nr. 255 480 01) ............................................................... 311
21.2 Encoder Diagnostic Set PWM 8 (Id.Nr. 309 956-xx) ................................................. 313
21.3 Drive Control Generator DCG (Id.Nr. 296 737-01) ..................................................... 314
21.3.1 Functional description of DCG controls and displays ...................................... 314
21.3.2 Accessories DCG ............................................................................................. 316
22 Machine Parameter List .................................................................................................. 319