Mitsubishi FX3U-232-BD User Manual page 385

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
speed is withdrawn
M11
FNC271
K0
IVDR
M8029
Instruction execute
complete
10 Practical Program Examples (for FX3U and FX3UC PLCs)
FNC 12
"60 Hz" is written as
K6000 D10
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withdrawn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
H0ED D10 K1
The preset frequency
is written to the
inverter
Operation
speed
RST M11
The write
instruction
is driven
10.2 Practical Example 2
Change in the
operation speed
(D10) is
detected
E-95
A
B
C
D
E
F
G
H
I
Apx.