Program Example - Mitsubishi Electric FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
8.1.3

Program example

1. Writing parameters to an inverter while the PLC is in RUN mode
M8002
Initial pulse
M10
Driving of
write
instruction
*1. When using an E500 Series inverter, use "H2" to specify computer link operation.
2. Changing the speed using a sequence program
M8000
RUN
monitor
E-88
FNC180
EXTR
FNC180
EXTR
FNC180
EXTR
FNC180
EXTR
FNC180
EXTR
FNC180
EXTR
M8029
Instruction execute
complete
M17
Command for
switching to speed 1
M18
Command for
switching to speed 2
FNC180
EXTR
SET M10
The write
instruction
is driven
K11 K0 H0FD H9696
K11 K0 H0FB H0
K13 K0 K1 K12000
K13 K0 K2 K500
K13 K0 K7 K10
K13 K0 K8 K10
RST M10
The write
instruction
is driven
FNC 12
K6000
P
MOV
Operation
speed
FNC 12
K4000
P
MOV
Operation
speed
FNC 12
K2000
MOV P
Operation
speed
K11 K0 H0ED
Operation
speed
8 Practical Program Examples (FX2N, FX2NC)
The inverter is reset
Computer link
*1
operation is specified
The maximum frequency
is set to "120 Hz"
The minimum frequency
is set to "5 Hz"
The acceleration time
is set to "1 s"
The deceleration time
is set to "1 s"
D10
"60 Hz" is written as
the initial value at
startup
D10
The operation speed is
written as "40 Hz"
D10
The operation speed is
written as "20 Hz"
D10
The preset frequency
is written to the
inverter
8.1 Practical Example 1