Mitsubishi Electric FR-A820-00046 Instruction Manual page 969

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 (RWr0) to the instruction code execution is set in D2.
(Refer to page 5-756 for the reply code (RWr0).)
SB49 SW0B0.0
0
M0 X20
3
M300
7
M301 X1021
9
M302 X1021
16
22
Fig. 5-380: Programming example 6
NOTES To change the running frequency continuously using a programmable controller, check that the
frequency setting complete (for example, X1021) turns ON, and the reply code from the intelligent
register is H0000. Then change the setting data (for example, W100) continuously.
To write the running frequency to the EEPROM, change the following points in the program
shown in fig. 5-380:
● Frequency setting command: Y1021
● Frequency setting completion: X1021
Inverter running
To the EEPROM, a writing is performed only once after the command Y1022 turns ON.
If the set data is changed at the command Y1022 ON, the change is not applied to the inverter.
FR-A800
MOV K5000 W100
MOV W0
Timing chart for writing to the RAM
Y1021
W101
frequency
CC-Link IE Field Network (FR-A800-GF)
Check the data link status of the station 1.
M0
PLS M300
SET M301
Write the set frequency to RWw0.
Turn OFF the frequency setting command RAM (RY21).
SET Y1021
RST M301
SET M302
Read the reply code (RWr0) to output to D2 when the
D2
frequency setting completion (RX21) turns ON.
Turn OFF the frequency setting command RAM (RY21).
RST Y1021
RST M302
END
Y1022
X1022
Y1022
W100
Inverter running
frequency
Timing chart for writing to the EEPROM
Apply to the inverter when the
command Y1022 turns ON.
I003090E
5 - 767