Mitsubishi Electric FR-A820-00046 Instruction Manual page 1031

Parameters
Programming example for setting the running frequency
The following program changes the running frequency of the station 1 inverter to 50.00 Hz.
● Set frequency: K5000 (decimal)
● The reply code at the time of instruction code execution is set to D2. (Refer to page 5-821.).
SM1536 SD1536.0 SD1540.0
(0)
M0 X20
(4)
M300
(8)
M301 X100D
(10)
M302 X100D
(17)
(23)
Fig. 5-399: Programming example 6
NOTES To change the running frequency continuously using a programmable controller, check that the
frequency (speed) setting completion (for example, X100D) turns ON, and the reply code from the
remote register is H0000. Then change the setting data (for example, W101) continuously.
To write the running frequency to the EEPROM, change the following points in the program
shown in fig. 5-399:
● Frequency setting command: Y100D
● Frequency setting completion: X100D
Inverter running
To the EEPROM, a writing is performed only once after the command Y100E turns ON.
If the set data is changed at the command Y100E ON, the change is not applied to the inverter.
FR-A800
Timing chart for writing to the RAM
Y100D
W101
frequency
Ethernet communication (FR-A800-E)
M0
Check the data link status of the station 1.
PLS M300
SET
M301
Write the set frequency to RWw1.
MOV
K5000 W101
Turn OFF the frequency setting command RAM
SET
Y100D
(RY0D).
RST
M301
SET
M302
Read the reply code (RWr2) to output to D2 when
the frequency setting completion (RX0D) turns ON.
MOV
W2 D2
Turn OFF the frequency setting command RAM
RST
Y100D
(RY0D).
RST
M302
END
Y100E
X100E
Timing chart for writing to the EEPROM
Y100E
W101
Inverter running
frequency
I003136E
Apply to the inverter when the
command Y100E turns ON.
5 - 829