Programming instructions

4-62
Motion Blocks NC Programming 17VRS
DOK-MTC200-NC**PRO*V17-ANW1-EN-P
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The master and slave axes in an active synchronized axis group must
not be present as master or slave axes in a different synchronized axis
group.
Steps in a Follower Operation
A synchronized axis group can be activated during program-controlled
operation from the NC-program by means of an auxiliary function. In
manual mode, the user can activate synchronized operation by means of
a machine control key or some other key. An interface signal between the
SPS and the NC allows follower axis synchronization to be activated in
any operating mode. It is important to be certain that the master and slave
axes are placed in their starting position before activating synchronized
operation and that the corresponding machine data are entered properly.
Synchronized operation can be canceled without regard for the operating
mode by resetting the activation interface signal. All axes in the synchro-
nized axis group retain their position without any change after being deac-
tivated.
Auxiliary Functions for Synchronized Operation
Effective version 15VRS, Q-functions Q9000 - Q9999 are reserved for
INDRAMAT-specific functions. The Q-functions Q9800 - Q9868 are pro-
vided for synchronized axis operation. We recommend that the auxiliary
functions be assigned as follows for synchronized operation:
9 reserved
for
INDRAMAT
8 reserved
for synchro-
nized axis
operation
Process
number
x = 0...6
Function Remarks
Q 9 8 x 0 Synchronous axis groups 1 - 4 OFF
Q 9 8 x 1 Synchronous axis group 1 ON
Q 9 8 x 2 Synchronous axis group 2 ON
Q 9 8 x 3 Synchronous axis group 3 ON
Q 9 8 x 4 Synchronous axis group 4 ON
Q 9 8 x 5 Synchronous axis group 1 OFF
Q 9 8 x 6 Synchronous axis group 2 OFF
Q 9 8 x 7 Synchronous axis group 3 OFF
Q 9 8 x 8 Synchronous axis group 4 OFF
NC Programming
During synchronized operation, the user must not program any axis other
than the master axis of an active synchronized axis group. All other slave
axes are not programmed during synchronized mode. If the user attempts
to do this by, for example, mirror imaging or scaling a slave axes, the NC
interrupts program execution and issues an error message.
Zero offsets and tool corrections (including D-corrections) are only taken
into account by the NC for the master axis. The slave axes of a synchro-
nized axis group receive only command values considering their transla-
tion ratio and direction specified in the machine data page 40.
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The synchronized axis groups remain active at the end of the program
(BST, RET, M02 and M30), with control reset or with jog in manual
mode if the SPS does not cancel the active synchronized axis.
•
During synchronized operation, the user must not switch the axis in the
synchronized axis group from one process to another. The use of the
axis transfer commands with the axes which are engaged in synchro-
nized operation will cause the program to terminate and an error mes-
sage to be issued. Thus, axes which are operated in synchronized