Programming instructions

4-58
Motion Blocks NC Programming 17VRS
DOK-MTC200-NC**PRO*V17-ANW1-EN-P
•
All spindles used in a main spindle synchronization must be controlled
by the same APRB card.
•
No more than two synchronized spindles can belong to a synchroniza-
tion group aside from the master spindle.
•
The master spindle must have a lower drive number than the synchro-
nized spindles within the SERCOS drive loop.
•
A single spindle cannot be both a master and a synchronized spindle
at the same time.
NOTE
Only digital main spindle drives equipped with the
SERCOS interface and digital DDS 2.2 feed drives
equipped with main spindle functions and with the
SERCOS interface can be used in main spindle syn-
chronization.
Sequence of a Synchronization Operation
The main spindle synchronization is activated in NC-program-controlled
mode from the NC-program by means of an auxiliary function. In manual
mode, the synchronization can be activated by means of a machine con-
trol key or by any other key. An interface signal between the SPS and the
NC allows main spindle synchronization to be activated in any operating
mode.
The following must be specified from the user interface, the NC-program,
or the SPS program before starting main spindle synchronization:
•
The master spindle assigned to the synchronized spindle
•
The translation ratio between the master spindle and the synchronized
spindle
•
The direction of rotation of the synchronized spindle
•
The effective angular offset and position offset between both spindles
•
The tolerance limits for monitoring the actual-position-value differ-
ences between the master and the synchronized spindle
Effective with version 15VRS, Q-functions Q9000 - Q9999 are reserved
for INDRAMAT-specific functions. The Q-functions Q9700 - Q9764 are
provided for main spindle synchronization. We recommend that the aux-
iliary functions be assigned as follows for main spindle synchronization:
9 reserved for
INDRAMAT
7 reserved for
Main Spindle
Synchronizing
Process
number
x = 0...6
Function Remarks
Q 9 7 x 0 Main Spindle synchron. groups 1
& 2 OFF
Q 9 7 x 1 Main Spindle synchron. group 1
ON
Q 9 7 x 2 Main Spindle synchron. group 2
ON
Q 9 7 x 3 Main Spindle synchron. group 1
OFF
Q 9 7 x 4 Main Spindle synchron. group 2
OFF
If the spindles are rotating at different speeds (stopped = 0 rpm) when
spindle synchronization is activated, the NC accelerates or decelerates
the synchronized spindle at maximum acceleration/deceleration until it
reaches the synchronization speed. As soon as it reaches the synchroni-
Activate main spindle
synchronization
Auxiliary Functions for
Selecting and Canceling Main
Spindle Synchronization
Synchronization Operation