Delta AS Series Programming Manual page 1197

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AS Ser ies Pro gra mm in g M anu al

Function block 2

When M0 is ON, Y0.0 outputs 10000 pulse at 1kHz. Y0.1 = OFF means the pulse output direction is positive.

Be sure to refer to PLSR instruciton (API2701) for more details on changing target frequency during outputting.

Remember if there is any change on the target frequency, the change can only be carried out after the original

target frequency completes outputting.

Changing the target position during outputting:

10.1 This function is only available for firmware version 1.02.30 or later. You cannot change outputting direction

even after the target position is changed. For example, if the original output target position is in the positive

direction, after the target positon is changed, it still outputs in the positive positive.

10.2 After you set the change flag, the changing happens when the instruction is being scanned. And after it is

changed, the change flag is cleared off. But if the target position is set incorrectly, the change flag keeps ON.

10.3 Refer to the following table for the corresponding outputs and change flag SM.

Output point

Output point

10.4 This changing target posiiton funciton is available for DDRVI and DDRVA insturcitos. When the instruction

DDRVI is used and a change flag is set, the change will be executed. Even if the output number is 0, the

operation will be carried out and stop outputting. When the instruction DDRVA is used, if the changed target

position is the same as the previous one, this change will not be performed.

10.5 Three situations may occur, when changing target position during output.

Situation A: changing timing occurs during outputting in the ramp-down area.

 oringinal target position when started (blue)

 new number of output pulse >= remaining number of output pulse, its outputting curve (red).

 new number of output pulse < remaining number of output pulse, its outputting curve (green).

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