Efficient Networks S120 manual Integration

Function modules

7.8 Closed-loop position control

The alarm is also generated if, during an activated function (reference mark search or measuring probe evaluation), a fault is signaled using the encoder status word.

If the "position control" function module is selected, these parameters (p2508 to p2511) are preassigned with "0". If the "basic positioner" function module is selected, the functions "reference mark search" (for the function reference point search) and "measuring probe evaluation" (for the function flying referencing) are initiated by the function module basic positioner and the feedback signal (r2526, r2523) is fed back to this (see also: Commissioning Manual, section "Control and status words for encoders").

Function diagrams (see SINAMICS S List Manual)

●4010 Position actual value conditioning

●4720 Encoder interface, receive signals, encoder 1 ... 3

●4730 Encoder interface, send signals, encoder 1 ... 3

Overview of key parameters (see SINAMICS S List Manual)

●p2508 BI: LR activate reference mark search

●p2509 BI: LR activate measuring probe evaluation

●p2510 BI: LR measuring probe evaluation, selection

●p2511 BI: LR measuring probe evaluation edge

●p2517 LR direct probe 1 input terminal

●p2518 LR direct probe 2 input terminal

●r2523 CO: LR measured value

●r2526 CO/BO: LR status word

7.8.6Integration

The "position control" function module is integrated in the system as follows:

Commissioning

The "position control" function module can be activated via the commissioning Wizard or the drive configuration (configure DDS).

When the "basic positioner" function module (r0108.4 = 1) is activated, then the function module "position control" (r0108.3) is automatically activated.

The current configuration can be checked in parameter r0108.

The position controller can be parameterized in a user-friendly fashion using the screen forms in STARTER.

The "position control" function module is absolutely essential for operating the basic positioner.

If the "position control" function module is active, and to optimize the speed controller, a function generator signal is interconnected to the speed controller input p1160, then the

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