
9. TROUBLESHOOTING
B--63005EN/02
576
(1) Check CNC status display at lower left corner of the CRT.
When the status display shows HND, mode selection is correct.
If it is not HND, mode select signal is not input correctly. Check the
mode select signal using the PMC’s diagnostic function(PMCDGN).
#7
G0043
#6 #5 #4 #3 #2
MD4
#1
MD2
#0
MD1
1 0 0
Manuale handle mode
(2)Manual handle feed axis select signal is not input.
Check the signals using PMC’s diagnostic function (PMCDGN).
#7
HS2DG0018
#6
HS2C
#5
HS2B
#4
HS2A
#3
HS1D
#2
HS1C
#1
HS1B
#0
HS1A
G0019 HS3D HS3C HS3B HS3A
#7
G0029
#6 #5 #4 #3
HS4D
#2
HS4C
#1
HS4B
#0
HS4A
For the 20i--
F only
When axis select switch for manual handle feed is selected on the
machine operator’s panel, if the signals are input as follows, it is
normal.
Selected axis HSnD HSnC HSnB HSnA
no selection
1st axis
2nd axis
3rd axis
4th axis
5th axis
6th axis
7th axis
8th axis
Both X-- and Y--axes simulta-
neously (guidance handle)
Both X-- and Y--axes simulta-
neously (approach handle)
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
1
1
1
1
0
1
1
0
0
1
1
0
0
1
1
0
1
1
0
1
0
1
0
1
0
1
0
0
1
NOTE
1 In the above table, n is the number of the manual pulse
generator
(MPG) and up to 3 MPGs can be used.
A feed axis is selected by 4--bit code of A to D.
In the 20i-- F, up to four manual pulse generators can be
effective.
2 By defining a straight line or arc in the CNC beforehand
using the R area of the PMC, the guidance handle and the
approach handle allow the tool to move along both X-- and
Y--axes simultaneously. The exchange of information with
the R area of the PMC is performed by the macro software
or PMC sequence program created by the MTB.
4 Checking the parameters
and input signals