Mitsubishi Electric FX3U-232-BD User Manual page 435

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
2. Changing the speed using a sequence program
M8000
RUN
monitor
The write
instruction
is driven
M17
Command for
switching to speed 1
M18
Command for
switching to speed 2
M8002
Initial pulse
FNC228
D10 D80
LD<>
Operation Operation speed is
speed withdrawn
M11
FNC180
K11
EXTR
M8029
Instruction execute
complete
8 Practical Program Examples (FX2N, FX2NC)
FNC 12
K6000 D10
"60 Hz" is written as
MOV
P
the initial value at
startup
Operation
speed
FNC 12
K4000 D10
The operation speed is
MOV
P
written as "40 Hz"
Operation
speed
FNC 12
K2000 D10
The operation speed is
MOV
P
written as "20 Hz"
Operation
speed
FNC 12
D10 D80
MOV
Operation Operation
speed speed is
withdrawn
SET M11
The write
instruction
is driven
K0 H0ED D10
The preset frequency is
written to the inverter
Operation
speed
RST M11
The write
instruction
is driven
8.2 Practical Example 2
Change in the
operation speed
(D10) is
detected
E-93
A
B
C
D
E
F
G
H
I
Apx.A