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Communication operation and setting
(9) Setting items and set data
After completion of parameter setting, set the instruction codes and data then start communication from the computer
to allow various types of operation control and monitoring.
Item
Read/
Write
Instruction
Code
Data Description
Number of
Data Digits
(format)
Operation mode
Read H7B
H0000: Network operation
H0001: External operation
H0002: PU operation
(RS-485 communication operation via PU connector)
4 digits
(B.E/D)
Write HFB
4 digits
(A,C/D)
Monitor
Output
frequency/
speed
Read H6F
H0000 to HFFFF: Output frequency in 0.01Hz increments
Speed in 1r/min increments (when Pr. 37 = 1 to 9998 or Pr. 144 = 2 to 10,
102 to 110)
4 digits
(B.E/D)
Output
current
Read H70
H0000 to HFFFF: Output current (hexadecimal) in 0.01A increments (55K
or lower) / 0.1A increments (75K or higher)
4 digits
(B.E/D)
Output
voltage
Read H71 H0000 to HFFFF: Output voltage (hexadecimal) in 0.1V increments
4 digits
(B.E/D)
Special
monitor
Read H72 H0000 to HFFFF: Monitor data selected in instruction code HF3
4 digits
(B.E/D)
Special
monitor
selection No.
Read H73
H01 to H3C: Monitor selection data
Refer to the special monitor No. table (page 344)
2digits
(B.E'/D)
Write HF3
2digits
(A',C/D)
Fault record Read
H74 to
H77
H0000 to HFFFF: Two most recent fault records
Refer to the fault data table (page 345)
4 digits
(B.E/D)
Run command
(extended)
Write HF9
You can set the control input commands such as the forward rotation
signal (STF) and reverse rotation signal (STR). (Refer to page 345 for
details)
4 digits
(A,C/D)
Run command Write HFA
2digits
(A',C/D)
Inverter status
monitor
(extended)
Read H79
You can monitor the status of the output signals such as forward rotation,
reverse rotation and inverter running (RUN). (Refer to page 346 for details)
4 digits
(B.E/D)
Inverter status
monitor
Read H7A
2digits
(B.E'/D)
Set frequency
(RAM)
Read
H6D
Read the set frequency/speed from the RAM or EEPROM.
H0000 to HFFFF: Set frequency in 0.01Hz increments
Speed in 1r/min increments (When Pr. 37 = 1 to 9998 or Pr. 144 = 2 to 10,
102 to 110)
4 digits
(B.E/D)
Set frequency
(EEPROM)
H6E
Set frequency
(RAM)
Write
HED
Write the set frequency/speed into the RAM or EEPROM.
H0000 to H9C40 (0 to 400.00Hz) : frequency in 0.01Hz increments
H0000 to H270E (0 to 9998) : speed in r/min increments (when Pr
. 37 = 1
to 9998 or Pr. 144 = 2 to 10, 102 to 110)
⋅ To change the running frequency consecutively, write data to the
inverter RAM. (Instruction code: HED)
4 digits
(A,C/D)
Set frequency
(
RAM, EEPROM
)
HEE
Inverter reset Write HFD
H9696: Resets the inverter.
⋅ As the inverter is reset at start of communication by the computer, the
inverter cannot send reply data back to the computer.
4 digits
(A,C/D)
H9966: Resets the inverter.
⋅ When data is sent normally, ACK is returned to the computer and then
the inverter is reset.
4 digits
(A,D)
Faults history
batch clear
Write HF4 H9696: Clears the faults history as a batch.
4 digits
(A,C/D)
Refer to page 336 for data formats (A, A', B, B', C, D)
b15 b8 b7 b0
Latest faultSecond fault in past
Third fault in pastFourth fault in past
Fifth fault in pastSixth fault in past
Seventh fault in pastEighth fault in past
H74
H75
H76
H77