ABB FPBA-01 Manual descarregar pdf (Página 81)

Starting up fieldbus communication and programming the ABB PLC (one-drive system)

The block in the previous picture runs axis1 constantly at velocity 200.

The speed and position scaling is defined by setting drive control program

parameters of group 60 POS FEEDBACK, see page 42. With the settings on page

42, a speed reference of 1000 corresponds to a speed of 1000 rpm that means

1000 motor axis rotations per minute.

Program stopping (MC_Stop)

This function block commands a controlled motion stop and transfers the axis to the

STOPPING state. The block aborts any ongoing function block execution. While the

axis is in the STOPPING state, no other function block can perform any motion on

the same axis. After the axis has reached the zero velocity, the Done output is set

to TRUE immediately. The axis remains in the STOPPING state as long as the

Execute input remains TRUE or the zero velocity is not yet reached. As soon as

output Done is set and input Execute is FALSE, the axis goes to the STANDSTILL

state. For the states, refer to the state machine (Axis StateMachine) on page 102.

By clicking the Box tool button, insert a new box. Replace the default text AND with

MC_Stop. Name the block, for example, stop1, Class: VAR, Type: MC_Stop. Name

input Execute stop_axis1, Class: VAR_GLOBAL, Type: BOOL.

Define input Deceleration with a numeric value.

Leave Jerk and BufferMode blank.

Input Axis defines the controlled axis. Name it axis1.

Tool/Step

Programming actions

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ABB FPBA-01 Manual Página 81