User manual FANUC OI-TC

[. . . ]   No part of this manual may be reproduced in any form. All specifications and designs are subject to change without notice. The export of this product is subject to the authorization of the government of the country from where the product is exported. In this manual we have tried as much as possible to describe all the various matters. However, we cannot describe all the matters which must not be done, or which cannot be done, because there are so many possibilities. Therefore, matters which are not especially described as possible in this manual should be regarded as "impossible". SAFETY PRECAUTIONS This section describes the safety precautions related to the use of CNC units. [. . . ] MANUAL OPERATION OPERATION B64114EN/01 Manual operation during cornering This is an example when manual operation is performed during cornering. VA2', VB1', and VB2' are vectors moved in parallel with VA2, VB1 and VB2 by the amount of manual movement. Then correct tool nose radius compensation is performed for the blocks following Pc. VC1' VB2 VB1 VB2' VB1' Tool nose radius path after manual operation PA' PA Programmed path (absolute command) Tool nose radius path before manual operation Manual operation PB PC VC1 VC2 VA2 PH VA1 VA2' PH' VA1' Manual operation after single block stop Manual operation was performed when execution of a block was terminated by single block stop. An MDI operation can also be interveneted as well as manual operation. The movement is the same as that by manual operation. Tool nose radius path after manual operation VB2 VB1 Manual operation VB2' VB1' Programmed path (absolute command) PA Tool nose radius path before manual operation PB PC VC1' VC1 VC2 PB' 416 B64114EN/01 OPERATION 4. AUTOMATIC OPERATION 4 AUTOMATIC OPERATION Programmed operation of a CNC machine tool is referred to as automatic operation. This chapter explains the following types of automatic operation: S MEMORY OPERATION Operation by executing a program registered in CNC memory S MDI OPERATION Operation by executing a program entered from the MDI panel S DNC operation Operation while reading a program from external input/output device S PROGRAM RESTART Restarting a program for automatic operation from an intermediate point S SCHEDULING FUNCTION Scheduled operation by executing programs (files) registered in an external input/output device (Handy File, Floppy Cassette, or FA Card) S SUBPROGRAM CALL FUNCTION Function for calling and executing subprograms (files) registered in an external input/output device (Handy File, Floppy Cassette, or FA Card) during memory operation S MANUAL HANDLE INTERRUPTION Function for performing manual feed during movement executed by automatic operation S MIRROR IMAGE Function for enabling mirrorimage movement along an axis during automatic operation S MANUAL INTERVENTION AND RETURN Function restarting automatic operation by returning the tool the position where manual intervention was started during automatic operation. S MEMORY CARDBASED DNC OPERATION Automatic operation by a program written to a memory card 417 4. AUTOMATIC OPERATION OPERATION B64114EN/01 4. 1 MEMORY OPERATION Programs are registered in memory in advance. When one of these programs is selected and the cycle start switch on the machine operator's panel is pressed, automatic operation starts, and the cycle start LED goes on. When the feed hold switch on the machine operator's panel is pressed during automatic operation, automatic operation is stopped temporarily. When the cycle start switch is pressed again, automatic operation is restarted. When the RESET key on the MDI panel is pressed, automatic operation terminates and the reset state is entered. For actual operation, refer to the manual supplied by the machine tool builder. Procedure for Memory Operation 1 Press the MEMORY mode selection switch. 21 Press PROG to display the program screen. 22 Press address O . 4 To stop or cancel memory operation midway through, follow the steps below. a. Stopping memory operation Press the feed hold switch on the machine operator's panel. The machine responds as follows: (i) When the machine was moving, feed operation decelerates and stops. (iii) When M, S, or T was being executed, the operation is stopped after M, S, or T is finished. When the cycle start switch on the machine operator's panel is pressed while the feed hold LED is on, machine operation restarts. b. Terminating memory operation Press the RESET key on the MDI panel. Automatic operation is terminated and the reset state is entered. 418 B64114EN/01 OPERATION 4. AUTOMATIC OPERATION When a reset is applied during movement, movement decelerates then stops. Explanation Memory operation After memory operation is started, the following are executed: (1) A oneblock command is read from the specified program. [. . . ] (3) Replace the fan or servo amplifier unit. 446 447 The external pulse input line is disconnected. The velocity deviation is too high (velocity con- Check the actual velocity. 500 501 LED display Description The positive stroke limit has been exceeded. Move the tool in the opposite direction in jog mode, then perform a reset. 510 511 The positive soft stroke limit has been exceed- Check whether appropriate values have been specified for parameters No. 142 and 143. [. . . ]