HEIDENHAIN iTNC 530 Service Manual page 6

17.1.4 Additional Diagnosis Possibility on Encoders with EnDat Interface ................ 283
17.1.5 Corrective action .............................................................................................. 283
17.1.6 Re-Setting the Machine Datum ....................................................................... 284
17.2 Speed encoders ........................................................................................................ 286
17.2.1 Introduction .................................................................................................... 286
17.2.2 Possible Causes of Error ................................................................................. 287
17.2.3 Trouble Shooting on the CC 422 ..................................................................... 287
17.2.4 Trouble Shooting on CC the 422 ..................................................................... 289
17.2.5 Additional Diagnosis Possibility on Encoders with EnDat Interface ................ 292
17.2.6 Corrective action .............................................................................................. 292
17.2.7 Resetting the Spindle Orientation ................................................................... 293
17.3 Error Code for Encoders with EnDat Interface .......................................................... 294
17.4 Checking position and speed encoders..................................................................... 295
17.5 Position Measurement with the Motor Encoder ...................................................... 296
18 Referencing....................................................................................................................... 301
18.1 Definition ................................................................................................................... 301
18.2 Traversing the Reference Marks ............................................................................... 302
18.3 Deselect Referencing for Axes ................................................................................. 309
19 Checking the Enables on the iTNC................................................................................. 311
19.1 General ...................................................................................................................... 311
19.2 Examination ............................................................................................................... 313
19.2.1 Examination of the output Control-is-ready (X41/pin34) and input Control-is-ready
signal acknowledgement I3 (X42/pin 4) .......................................................... 314
19.2.2 Checking the global drive enable I32, connector X42 / pin 33 ......................... 319
19.2.3 Checking the drive enabling for the axis groups via connector
X150 and X151 (if wired) ................................................................................ 321
19.2.4 Checking the readiness of the inverter system ............................................... 322
19.2.5 Überprüfung von PLC-Modulen, Merkern und WörternChecking PLC
modules, markers and words ......................................................................... 325
20 Interface to the Drives ..................................................................................................... 327
20.1 Digital Drives ............................................................................................................. 327
20.1.1 Introduction ..................................................................................................... 327
20.1.2 Possible Causes of Errors ................................................................................ 328
20.1.3 Trouble Shooting: Exchanging PWM Outputs on the CC 422 ......................... 329
20.1.4 Trouble Shooting: Exchanging PWM Outputs on the CC 424 ......................... 333
20.1.5 Trouble Shooting: Exchanging Power Modules or Output Stages of the
Same Type ...................................................................................................... 337
20.1.6 Trouble Shooting: Exchanging the HEIDENHAIN Interface Boards for
the SIMODRIVE 611 System .......................................................................... 340
20.2 Analog Drives ............................................................................................................ 341
20.2.1 Introduction ..................................................................................................... 341
20.2.2 Possible Causes of Errors ................................................................................ 341
20.2.3 Testing the analog nominal speed value interface ......................................... 341
20.2.4 Adjusting the Electrical Offset (Drift Adjustment) ........................................... 346
20.2.5 Speed Adjustment at Servo Amplifier (Tachometer Adjustment) .................... 349
20.3 Switching the Position Display for Service Purposes ................................................ 351
21 Visual Display Unit .......................................................................................................... 353
21.1 General ...................................................................................................................... 353
21.2 Possible Causes of Errors ......................................................................................... 353
21.3 Fault diagnosis........................................................................................................... 354
22 Keyboard Unit .................................................................................................................. 357
22.1 General ...................................................................................................................... 357
22.2 Front View of the Keyboard Units ............................................................................ 357
22.3 Possible Causes of Error ........................................................................................... 359
HEIDENHAIN Service Manual iTNC 530