Page 235 - CITS - Fitter Trade Pactical - Volume - 2
P. 235
FITTER - CITS
Table - 1
Sl No. CNC parts Identified by trainee in simulator
1
2
3
4
5
6
7
8
9
10
11
Identify machine over travel limits and emergency stop
on the machine
Objectives : At the end of this exercise you shall be able to
• identify the over travel limit switches and x and z axes in CNC turning center
• identify emergency stop and operate it.
Job Sequence
TASK 1 : Indentification of machine over travel limit switches in x and y axis
There are two types of over travel limit
1 Soft over travel
2 Hardware over travel
Software over travel can be controlled by the specific parameter
Hardware over travel limit is controlled by limit switch.
Identification of hardware over travel switch (Fig 1)
Fig 1
220
CITS : C G & M - Fitter - Exercise 55
