
A-76286E
Sheet
Title
Draw
No.
16 Apr.19.'04 Addition or Modification of 16)
15 Jul.02.'02 Y.Takeuchi Improvement of status display T.Endo
14 Jun.21.'02 Y.Takeuchi Improvement of status display T.Endo
13 May.27.'02 Y.Takeuchi Addition of status display and improvement of S/T code output T.Endo
12 Mar.18.'02 Y.Takeuchi Availability of direction change movement in auxiliary function T.Endo
11 Jan.22.'02 Y.Takeuchi Availability of Angular axis control and Advanced preview control T.Endo
10 Oct.03.'01 Y.Takeuchi Addition or Modification of "5. About function improvement" T.Endo
Ed.. Date Design Description
Date May.02.’97 Desig. K.Ishida Apprv. T.Nakazato
FANUC Series 16i/18i/21i-TB/TB
Manual Handle Retrace
Specifications
7/40
2.3 Direction change prohibition
The direction change prohibition is a state not being changed for the direction where the
program is executed.
In the state, even if the rotating direction of a manual handle is reversed, the reversed
rotation is disregarded. A manual handle must be rotate in the same direction as present
direction for removing this state.
The direction change prohibition can be confirmed by output signal MNCHG<F0091#1>.
It becomes the change prohibition state under the following condition.
While the block with the code waiting for FIN is executing
After a block has done and until the next block begins to operate
During thread cutting
During stopping by the single block or the feed hold
Modal G code of G68.1, G68 and G51.2
The block with the axis that ends movement previously by G28, G02, G53 and
position (G00) is nonlinear, etc.
2.4 Backward movement prohibition
The backward movement prohibition is a state that the program cannot be executed from a
certain block backward. In this state, the negative rotation of a manual handle is
disregarded, and the only positive rotation is effective. The program must be executed
forward by rotating a manual handle in the positive direction for removing this state.
The backward movement prohibition can be confirmed by output signal MRVSP<F0091#2>.
If the following blocks are executed in backward movement, backward movement
prohibition signal is set "1".
Program number block of main program (O...)
Over the maximum number of the blocks for reverse movement
The block including the following G-codes
In the Multi spindle control, the block including S code of spindle select by
address P.
G05 G07 G07.1 G10 G10.6 G11 G12.1 G13.1
G17 G18 G19 G20 G21 G27 G30.1 G31
G32 G33
G34 G35 G36 G37 G38 G39
G50.3 G50.2 G51.2 G52 G54 G55 G56 G57
G58 G59 G65
G66 G67 G68 G68.1 G69
G69.1 G76 G80
G84 G87 G88 G89 G92
G54.1
(In the G-code system A)
10)
1)
10)
16)
12)
10)
1)
1)
1)
1)
1)
1)
16)