Siemens Simovert Masterdrives Compendium page 782

08.2012
Continuous enable
for engage-/
disengage cycle
active permanently
U612.3
9.4.32 Gearbox function [835]
Siemens AG 6SE7087-6QX70 (Version AN)
SIMOVERT MASTERDRIVES
If the continuous enable signal is permanently active, the
engage/disengage cycle is executed only once when the coupling
position is first reached. The drive then remains either engaged or
disengaged.
Position setpoint
master
Speed setpoint
slave
Coupling position
Master axis
cycle length
Permanent continuous enable
engaging/disengaging cycle
The enable command
for this cycle is not accepted
in these zones.
Fig. 9-40 Example: engaging cycle for rotary axis permanent continuous enable
The gearbox function [835] allows a transmission ratio to be set
between the master and slave axis. The transmission ratio is a fraction.
Transmission ratio = i =
1
Example: i = :
2
The slave axis traverses at half the velocity of the master axis.
The transmission ratio can also be changed in motion. If you want to
avoid jumps in the transmission ratio, you can control the transmission
ratio (numerator or denominator) using the simple ramp-function
generator [791] in the free blocks.

You will find detailed information on the gearbox function in the
"Synchronization functions" chapter of the Function Description
in manual /1/.
Compendium Motion Control
Numerator
Denominator
U604.1 = 1, U604.2 = 2
Technology Option F01
Position setpoint
master
Position setpoint
master
9-91