Chapter 7 Usage of Various Functions

5)Positioning start

(1)Direct start(POSDST)

This is used to operate directly by setting the axis, goal position address, operation speed without parameter setting.

Refer to the ‘7.3.4 Instruction’ for details.

(2)Indirect start(POSIST)

This is used to operate by setting the operation step no. by parameter.

Refer to the ‘7.3.4 Instruction’ for details.

(3)Speed control start(POSVEL)

This is used to operate directly by setting the axis, direction, operation speed without parameter setting.

The speed can be changed by the speed override instruction(POSSOR)

Refer to the ‘7.3.4 Instruction’ for details.

6)Positioning stop

(1)Deceleration stop(POSCTR)

If encounters deceleration stop command during operation, it stop operation after deceleration.

In case of deceleration stop by deceleration stop command in acceleration or constant speed section, starts to operate current operation step again by Start command and operation step

In case of deceleration stop by deceleration stop command in deceleration speed section, starts to operate ‘current operation step+1’ again by Start command and operation step

Refer to the ‘7.3.4 Instruction’ for details.

(2)Emergency stop(POSCTR)

If encounters emergency stop command during operation, it stops operation without deceleration.

When emergency stop has occurs, emergency stop error and output disable flag are set.

Error and output disable flag should be reset by error reset command of POSCTR for re-start operation

Refer to the ‘7.3.4 Instruction’ for details.

7-79

Page 163
Image 163
LG Electronics 120S user manual Positioning start, Positioning stop