Specifications

_____________________________________________________________________

CONCISE GUIDE FANUC 157

15.0 ORIGIN MANAGEMENT

This procedure is used to establish one or multiple reference points, thus allowing operators to have

references for the movements to be entered in the machining programme. Such references are defined as

piece origin.

15.1 ORIGIN MEASUREMENT

This procedure is used to establish the piece origin when tools are reset on the probe or with an external

measuring system.

1 – Fix the rough piece on the chuck

2 - Press the key MDI MODE placed on the operator’s panel

3 – Call a reset tool to work position.

For example: T101 then press EOB INSERT START

4 – Start spindle rotation if needed.

For example: G97 S500 M4 then press EOB INSERT START

5 – Touch the piece origin lightly by means of the JOG Z- Z+ X- X+ keys

controlling with the axes potentiometer or using a hand-wheel after selecting it

6 – Once the piece has been touched use JOG Z- Z+ X- X+ .

7 – After closed the piece, move with X axis on the co-ordinate Z of zero piece

8 – Stop the spindle with M5 and press EOB INSERT START

9 - Press setting page

10 – Press soft key job

11 – Position with the cursor on origin desired and used in the program

12 - Press Z quote referred to actual position

13 press soft key MEASURE

Once this operation has been performed, the CNC will automatically load the distance between the

machine zero and the piece zero in the desired origin.

15.2 ORIGIN MODIFICATION

This procedure is used for manual modification of the piece origin used in the (origin obtained following

the

procedure described in the previous paragraph)

1 - Press the key SETTING PAGE until the OFFSET window appears on the screen

2 - Press the soft key MACHINE/JOB

3 – Place the cursor on the relevant axis (X, Z or C axis of the desired origin)

4 – Enter the displacement value (for ex. 0.5)

5 - Press the soft key +ENTR for an additional shift

6 - Press the soft key ENTER for an absolute shift