Mitsubishi Electric FX3U-232-BD User Manual page 470

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
2. Changing the speed using a sequence program
*Inverter A
(station number 0)
M8000
RUN
monitor
Command for
switching to speed 1
(station number 0)
Command for
switching to speed 2
(station number 0)
M8002
Initial pulse
FNC228
The write
instruction
is driven
(station
number 0)
*1. For the V500 Series inverter, write "0" to instruction code HFF (Link parameter expansion setting) just
before writing the set frequency in the program.
E-128
M17
M18
D10 D80
LD<>
Operation Operation speed
speed is withdrawn
(station (station
number 0) number 0)
M11
FNC271
IVDR
M8029
Instruction execute
complete
10 Practical Program Examples (FX3S, FX3G, FX3GC, FX3U, FX3UC)
FNC 12
K6000 D10
MOV
P
Operation
speed
(station
number 0)
FNC 12
K4000 D10
MOV
P
Operation
speed
(station
number 0)
FNC 12
K2000 D10
MOV
P
Operation
speed
(station
number 0)
FNC 12
D10 D80
MOV
Operation Operation
speed speed is
withdrawn
(station
(station
number 0)
number 0)
SET M11
The write
instruction
is driven
(station
number 0)
K0 H0ED D10 K1
Operation
speed
(station
number 0)
RST M11
The write
instruction
is driven
(station
number 0)
10.2 Practical Example 2
"60 Hz" is written as
the initial value at
startup.
The operation speed is
written as "40 Hz"
The operation speed is
written as "20 Hz"
Change in the
operation speed
(D10) is
detected
*1
The preset frequency
is written to the
inverter