Siemens SIMOVERT MASTERDRIVES Manual page 735

05.2006
Engaging/
disengaging cycle
enable U612
Static engaging/
disengaging cycle
enable U612.1
Siemens AG 6SE7087-6QX70 (Version AG)
SIMOVERT MASTERDRIVES
If the engaging/disengaging cycle is enabled in the (1) zones, the
engaging/disengaging cycle is started the next time the coupling
position is crossed.
The operating principle described below for the engaging cycle
(U475=0 default configuration) also applies to the disengaging cycle.
When coupling position (A) is crossed, the drive accelerates via the
ramp. Synchronism with the master is reached at point (B), by which
time the master has traveled half of the engaging/disengaging ramp
length configured in U610.1 [834a.4]. At point (C), the drive starts its
deceleration ramp, finishing at point (D).
In zones (A) to (D), the slave has covered the "on" length.
Enabling of the engaging/disengaging cycle is either edge-triggered or
initiated by a static signal. The source of the enable signal can be
selected with U612.01 (static signal) or U612.02 (once-off enabling by
edge triggering) [834a.2].
With the static enable (continuous enable), the engaging/disengaging
cycle continues to operate as long as the signal is active.
Position setpoint
master
Speed setpoint
slave
Coupling position
Master axis
cycle length
Static engaging/
disengaging
cycle enable
The enable command
for this cycle is not accepted
in these zones.
Fig. 9-35 Example: engaging cycle for rotary axis
If the enable is initiated in the shaded areas, it is no longer accepted for
this cycle.
Compendium Motion Control
Technology Option F01
Position setpoint
master
Position setpoint
master
9-87