Crt Screen Does Not Display; Handle Mode Operation Faulty• Oooc. O - YASKAWA YASNAC i80 Maintenance Manual

4.3.3 CRT SCREEN DOES NOT DISPLAY

CRT screen may not display any data as a result of
trouble of CRT unit itself, display circuit and/or
connection cable.
screen even after the NC unit power is applied, check
to ensure that the wire is properly connectedto the NC
operator's station, connectors are not loose, or fuse
inside CRT unit is not blown (referto Par. 4.3.11
"CRT SCREEN IS DARK").
Contact your YASKAWA representative, if the trouble can
not be located even after the above procedure.
4.3.4 HANDLE MODE OPERATION FAULTY
Cause of Trouble
HANDLE mode signal
not entered.
Axis selection signal
not entered.
If there is no display on the
Table 4.33
Check Method
1/0 signal #3000 Dz = 1
Bit set to O ?
All other bits
(Do ,
must be set to O.
Check the mode indication in the
stationary display field on the screen.
Confirm that one optional axis of the
Following axes is entered:
[/0 signal #3070
D = 1
O
For second handle
#3080
D = 1 (
O
D 3 = 1 ( 4 t h - a x i s )
=
D 5 = 1 ( 6 t h - a x i s )
For third handle
# 3 0 8 1
D
O
Select HANDLE mode.
Check mode switch wiring.
Select an axis.
Check the axis selection
switch wiring.
( 7 t h - a x i s )
(8th-axis)
= 1 (
9,
Solution
113
A
a