Yaskawa MP930 User Manual

Page 76

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3.4 User Programs

3 -17

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Executing Motion Programs

To execute a motion program called from a DWG.H drawing by the MSEE instruction, pro-
gram control signals (such as program operation start requests and program stop requests) must
be input. Operations are enabled by inputting the external control signals defined on the Group
Definition Screen as the program control signals.

The signals used to control motion programs are shown in the following table.

Bit

Signal Name

Signal Type

b0:

Program operation start request

Differential input

b1:

Program pause request

N.O. contact (”A” contact)

b2:

Program stop request

N.O. contact

b3:

Program debugging mode selection

N.O. contact

b4:

Program debugging start request

Differential input

b5:

Alarm reset request

N.O. contact

b6:

Skip 1 information

N.O. contact

b7:

Skip 2 information

N.O. contact

The motion program operation, stop, pause, and so on, can be controlled by using a ladder logic
program to input these signals into the one register higher than the work register specified with
the MSEE instruction.

For the ladder logic program inputs, make sure the signals are in accordance with the signal
type.

When the start signal is input using an N.O. contact, the program is completed and then restarted. The program
will not be executed if the start signal has been turned ON when the power is turned ON.

3

IMPORTANT

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