HEIDENHAIN TNC 415 (259 9x0) Service Manual - Manual (Page 4)

SERVICE MANUAL TNC 415B/425
Page 1
Issue: 20.08.95
Table of Contents
Page
1. How to Use this Service Manual................................................................................ 3
2. Minor Error Messages ................................................................................................... 4
2.1 Causes of Minor Error Messages ........................................................................................ 5
3. Major Error Messages and their Causes .................................................................. 7
4. Hardware Components TNC 415B/425.................................................................... 16
5. Logic Unit LE 415B/425 ............................................................................................... 17
5.1 Designation of the Logic Unit LE 415B/F............................................................................ 17
5.2 Designation of the Logic Unit LE 425/E .............................................................................. 18
5.3 Hardware Components of the Logic Unit LE 415B/425...................................................... 19
6. Connector Designation and Pin Layout .................................................................. 20
6.1 Connectors on the Logic Unit LE 415B/425 ....................................................................... 20
6.2 Connectors on the PLC I/O Boards..................................................................................... 28
6.3 Connectors on the Keyboard Units ..................................................................................... 39
6.4 Connectors on the Visual Display Units .............................................................................. 43
7. Block Diagrams.............................................................................................................. 45
8. Board Description ......................................................................................................... 47
9. Grounding Diagram TNC 415/B ................................................................................. 48
10. Power Supply ................................................................................................................. 51
10.1 External Power Supply Requirements ................................................................................ 51
10.2 Power Supply of the NC ..................................................................................................... 53
10.3 Checking the Power Supply Unit ........................................................................................ 55
10.4 Power Supply of the PLC.................................................................................................... 58
10.5 Buffer Battery ...................................................................................................................61.1
11. Keyboard Unit TE 400/410.......................................................................................... 62
11.1 Overview ............................................................................................................................ 62
11.2 Checking the Keyboard Unit ............................................................................................... 64
12. Visual Display Unit BC 110/B..................................................................................... 73
12.1 Overview ............................................................................................................................ 73
12.2 Checking the Visual Display Unit ........................................................................................ 73
13. Encoders .......................................................................................................................... 76
13.1 Error Messages for Axes with Analogue Speed Controller ................................................ 76
13.2 Error Messages for Axes with Integral Digital Speed Controller ........................................ 78
13.3 Electrical Inspection of an Encoder..................................................................................... 80
14. Electronic Handwheels ................................................................................................ 81
14.1 Handwheel HR 130/330...................................................................................................... 81
14.2 Handwheel HR 332............................................................................................................ 82
14.3 Error Messages .................................................................................................................. 83