4 Operation Mode
MITSUBISHI CNC
II - 14
4.4 Manual Reference Position Return Mode
4.4.1 Outline
This mode enables a controlled axis to be returned manually to the defined position unique to the machine (reference
position).
The first reference position return after the NC power is turned ON becomes the dog mode. For the second or later
reference position return, the dog mode or high-speed return can be selected by setting a given parameter.
4.4.2 Detailed Description
Patterns of reference position return are as shown below.
Dog mode reference position return
The steps below describe what happens to the controlled axis when it returns to the reference position for the first time
with the power ON and with the machine in an "operations not ready state" (emergency stop is engaged or the servo
alarm is ON) or when the parameters are selected in the dog mode.
(1) The controlled axis is moved in the direction where the near point detection limit switch and dog approach each
other in the reference position return mode.
(2) When the limit switch kicks the dog, the controlled axis once stops with deceleration.
(3) Next, the controlled axis moves to the reference position at the approach rate set in the parameter.
(4) When it arrives at the reference position, the reference position arrival signal is output.
(5) The reference position establishment signal is output.
High-speed reference position return
If high-speed return is set in a given parameter after dog mode reference position return is executed, then high-speed
reference position return will be made.
(-)
(+)
(-)
(+)
To move in + direction
To move in – direction
Dog
Reference position
When reference position return direction is positive (+)
To move in + direction
To move in – direction
Dog
Reference position
When reference position return direction is negative (-)
Summary of Contents for E70 Series
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Page 24: ...I SCREEN OPERATIONS ...
Page 25: ......
Page 26: ...I 1 1 Operating the Setting and Display Unit ...
Page 57: ...1 Operating the Setting and Display Unit MITSUBISHI CNC I 32 ...
Page 58: ...I 33 2 Monitor Screens ...
Page 139: ...2 Monitor Screens MITSUBISHI CNC I 114 ...
Page 140: ...I 115 3 Setup Screens ...
Page 232: ...I 207 4 Edit Screens ...
Page 314: ...I 289 5 Diagnosis Screens ...
Page 355: ...5 Diagnosis Screens MITSUBISHI CNC I 330 ...
Page 356: ...I 331 6 Maintenance Screens ...
Page 436: ...II MACHINE OPERATIONS ...
Page 437: ......
Page 439: ...MITSUBISHI CNC II 2 ...
Page 440: ...II 3 1 Operation State ...
Page 444: ...II 7 2 Indicator Lamps ...
Page 446: ...II 9 3 Reset Switch and Emergency Stop Button ...
Page 448: ...II 11 4 Operation Mode ...
Page 456: ...II 19 5 Operation Panel Switches in Operation Mode ...
Page 460: ...II 23 6 Operation Panel Switch Functions ...
Page 495: ...6 Operation Panel Switch Functions MITSUBISHI CNC II 58 ...
Page 496: ...II 59 7 Other Functions ...
Page 509: ...7 Other Functions MITSUBISHI CNC II 72 ...
Page 510: ...III MAINTENANCE ...
Page 511: ......
Page 512: ...III 1 1 Daily Maintenance and Periodic Inspection and Maintenance ...
Page 515: ...1 Daily Maintenance and Periodic Inspection and Maintenance MITSUBISHI CNC III 4 ...
Page 516: ...III 5 2 Hardware Replacement Methods ...
Page 531: ...2 Hardware Replacement Methods MITSUBISHI CNC III 20 ...
Page 532: ...IV APPENDIXES ...
Page 533: ......
Page 534: ...IV 1 Appendix 1 List of Function Codes ...
Page 536: ...IV 3 Appendix 2 Table of Command Value Ranges ...
Page 543: ...Appendix 2 Table of Command Value Ranges MITSUBISHI CNC IV 10 ...
Page 544: ...IV 11 Appendix 3 Circular Cutting Radius Error ...
Page 546: ...IV 13 Appendix 4 Registering Editing the Fixed Cycle Program ...
Page 561: ...Appendix 4 Registering Editing the Fixed Cycle Program MITSUBISHI CNC IV 28 ...
Page 562: ...IV 29 Appendix 5 RS 232C I O Device Parameter Setting Examples ...
Page 564: ...IV 31 Appendix 6 Explanation of Alarms ...
Page 678: ...IV 145 Appendix 7 Operation Messages ...
Page 699: ...Appendix 7 Operation Messages MITSUBISHI CNC IV 166 ...
Page 700: ...IV 167 Appendix 8 User Parameters ...
Page 777: ...Appendix 8 User Parameters MITSUBISHI CNC IV 244 ...
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