Technical data

Configuration
CPU 317T: Technology Functions
4-80 A5E00251798-03
Advanced synchronization
In advanced synchronization mode, the synchronization motion starts:
• at the start point of synchronization and with optimal time-based
synchronization, based on the preset dynamic response parameters, and at a
constant master setpoint value (dynamic control value.)
• Immediately, if an optimal synchronization time can not be calculated, and the
synchronization position can be reached (for example, if the control value is
static.)
Note
If an optimal synchronization is not possible, a reverse motion may be generated.
Any change in the velocity control value is applied to the dynamic values of the
synchronization process. A warning message is output if the configured tolerance
limit is violated.
If the control value sign reverses during synchronization, synchronization is
canceled with error.
Retarded synchronization
In retarded synchronization mode
• the synchronization motion starts when the start criterion is satisfied
• only a trapezoidal velocity profile is supported
If a velocity profile with constant acceleration is set, a "Dynamic response of
motion profiles ... can not be maintained" alarm is generated, and the system
automatically switches over to a trapezoidal velocity profile.