Ladder logic program example – Yaskawa MP920 Motion Module User Manual

Page 37

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2.2 Control Modes

2-11

2

Ladder Logic Program Example

Fig. 2.2 RUN Commands (DWG H01)

The example in the above illustration has been greatly simplified. In actual operation, each
register can be controlled from the user program.

IFON

ELSE

IEND

DEND

RUN

OBC0010

RUNPB

IB00104

ACCEL

IB00105

500

NREF

OWC015

NREF

OWC015

0

H0101

RUNMOD

OWC000

Set the speed reference output mode to ON.

Driver RUN command (RUN)

When IB00104 turns ON, the speed
reference output mode starts.

When the acceleration command (IB00105)
turns ON, a speed reference of 50% is
output for the acceleration time constant
(ACC).
When IB00105 turns OFF, the deceleration
time constant (DEC) causes deceleration
stop (a speed reference of 0% is output).

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