Drive functions
7.3 Function modules
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
269
7.3.7 Extended setpoint channel
Description
In the servo control mode, the extended setpoint channel is deactivated by default. If an
extended setpoint channel is required, it has to be activated. The extended setpoint channel
is always activated in the vector control mode.
Properties of servo mode without the "extended setpoint channel" function module
● The setpoint is directly interconnected to p1155[D] (e.g. from a higher-level control or
technology controller)
● Dynamic Servo Control (DSC) only
When using DSC, the "extended setpoint channel" is not used. This unnecessarily uses
the computation time of the Control Unit and, for servo, can be deactivated.
● Deceleration ramp OFF1 via p1121[D]
● Deceleration ramp OFF3 via p1135[D]
● For PROFIdrive telegrams 2 to 103 and 999 only (free assignment)
● STW 1 bit 5 (freeze ramp-function generator), no function
7.3.7.1 Activation of the "extended setpoint channel" function module
The "extended setpoint channel" function module can be activated via the commissioning
Wizard or the drive configuration (configure DDS).
You can check the current configuration in parameter r0108.8. Once you have set the
configuration, you must download it to the Control Unit where it is stored in a non-volatile
memory.
7.3.7.2 Description
In the extended setpoint channel, setpoints from the setpoint source are conditioned for
motor control.
The setpoint for motor control can also originate from the technology controller (see
"Technology controller").
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