Efficient Networks S120 manual Extended setpoint channel

Models: S120

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Extended setpoint channel

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Description

In the servo operating mode, the extended setpoint channel is deactivated by default. If an extended setpoint channel is required, it has to be activated.

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)

A higher number of motors can be controlled with one Control Unit at one setpoint source by moving the ramp-function generator to the higher-level 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 de-activated.

Deceleration ramp OFF1 via p1121[DDS]

Deceleration ramp OFF3 via p1135[DDS]

For PROFIdrive telegrams 2 to 106 and 999 only (free assignment)

STW 1 bit 5 (freeze ramp-function generator), no function

2.1Activating the "extended setpoint channel" function module in servo mode

In servo mode, 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 have to download it to the Control Unit where it is stored in a non-volatile memory (see the SINAMICS S120 Commissioning Manual).

Note

When the "extended setpoint channel" function module for servo is activated, under certain circumstances, the number of drives in the multi-axis group that can be controlled from a Control Unit is reduced.

Drive Functions

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Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

Page 47
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Efficient Networks S120 manual Extended setpoint channel