Instruction manual

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14. ABSOLUTE POSITION DETECTION SYSTEM 14- 1 to 14-62
14.1 Outline ................................................................................................................................................... 14- 1
14.1.1 Features..........................................................................................................................................14- 1
14.1.2 Restrictions..................................................................................................................................... 14- 1
14.2 Specifications ........................................................................................................................................14- 2
14.3 Battery installation procedure ...............................................................................................................14- 3
14.4 Standard connection diagram............................................................................................................... 14- 4
14.5 Signal explanation.................................................................................................................................14- 5
14.6 Startup procedure .................................................................................................................................14- 6
14.7 Absolute position data transfer protocol............................................................................................... 14- 7
14.7.1 Data transfer procedure .................................................................................................................14- 7
14.7.2 Transfer method............................................................................................................................. 14- 8
14.7.3 Home position setting....................................................................................................................14-17
14.7.4 Use of servo motor with electromagnetic brake...........................................................................14-19
14.7.5 How to process the absolute position data at detection of stroke end........................................14-20
14.8 Examples of use...................................................................................................................................14-21
14.8.1 MELSEC FX(2N)-32MT (FX(2N)-1PG)........................................................................................14-21
14.8.2 MELSEC A1SD75.........................................................................................................................14-33
14.8.3 MELSEC QD75 .............................................................................................................................14-46
14.9 Absolute position data transfer errors .................................................................................................14-55
14.9.1 Corrective actions..........................................................................................................................14-55
14.9.2 Error resetting conditions..............................................................................................................14-57
14.10 Communication-based ABS transfer system....................................................................................14-58
14.10.1 Serial communication command ................................................................................................14-58
14.10.2 Absolute position data transfer protocol.....................................................................................14-58
14.11 Confirmation of absolute position detection data..............................................................................14-62
APPENDIX App- 1 to App- 6
App 1. Parameter list...................................................................................................................................App- 1
App 2. Signal Layout Recording Paper ......................................................................................................App- 3
App 3. Status display block diagram ..........................................................................................................App- 4
App 4. Combination of servo amplifier and servo motor............................................................................App- 5