MITSUBISHI ELECTRIC MELSERVO MR-J2S- A - Manual (Page 18)

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14.9 Initialization........................................................................................................................................14-10
14.10 Communication procedure example ...............................................................................................14-10
14.11 Command and data No. list.............................................................................................................14-11
14.11.1 Read commands.........................................................................................................................14-11
14.11.2 Write commands........................................................................................................................14-12
14.12 Detailed explanations of commands...............................................................................................14-14
14.12.1 Data processing..........................................................................................................................14-14
14.12.2 Status display ............................................................................................................................14-16
14.12.3 Parameter...................................................................................................................................14-17
14.12.4 External I/O pin statuses (DIO diagnosis)..............................................................................14-19
14.12.5 Disable/enable of external I/O signals (DIO) ..........................................................................14-20
14.12.6 External input signal ON/OFF (test operation) .....................................................................14-21
14.12.7 Test operation mode ..................................................................................................................14-22
14.12.8 Output signal pin ON/OFF output signal (DO) forced output..............................................14-24
14.12.9 Alarm history .............................................................................................................................14-25
14.12.10 Current alarm..........................................................................................................................14-26
14.12.11 Other commands......................................................................................................................14-27
15. ABSOLUTE POSITION DETECTION SYSTEM 15- 1 to 15- 66
15.1 Outline.................................................................................................................................................. 15- 1
15.1.1 Features......................................................................................................................................... 15- 1
15.1.2 Restrictions.................................................................................................................................... 15- 1
15.2 Specifications ....................................................................................................................................... 15- 2
15.3 Battery installation procedure ........................................................................................................... 15- 3
15.4 Standard connection diagram ............................................................................................................ 15- 4
15.5 Signal explanation............................................................................................................................... 15- 5
15.6 Startup procedure................................................................................................................................ 15- 6
15.7 Absolute position data transfer protocol ........................................................................................... 15- 7
15.7.1 Data transfer procedure............................................................................................................... 15- 7
15.7.2 Transfer method ........................................................................................................................... 15- 8
15.7.3 Home position setting..................................................................................................................15-17
15.7.4 Use of servo motor with electromagnetic brake .......................................................................15-19
15.7.5 How to process the absolute position data at detection of stroke end....................................15-20
15.8 Examples of use ..................................................................................................................................15-21
15.8.1 MELSEC-A1S (A1SD71).............................................................................................................15-21
15.8.2 MELSEC FX(2N)-32MT (FX(2N)-1PG).....................................................................................15-35
15.8.3 MELSEC A1SD75(AD75) ...........................................................................................................15-47
15.9 Confirmation of absolute position detection data............................................................................15-62
15.10 Absolute position data transfer errors ...........................................................................................15-63
15.10.1 Corrective actions ......................................................................................................................15-63
15.10.2 Error resetting conditions.........................................................................................................15-65
Appendix App- 1 to App- 4
App 1. Signal arrangement recording sheets......................................................................................... App- 1
App 2. Status display block diagram ...................................................................................................... App- 2
App 3. Combination of servo amplifier and servo motor ...................................................................... App- 3