Mitsubishi FR-A800

(N) Operation via communication and its settings
574
PARAMETERS
Setting items and set data
• After completion of parameter settings, 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, External/PU combined operation, PUJOG operation
4 digits
(B.E/D)
Write HFB
H0000: Network operation
H0001: External operation
H0002: PU operation (RS-485 communication operation via PU connector)
4 digits
(A,C/D)
Monitor
Output
frequency
/speed
Read H6F
H0000 to HFFFF: Output frequency in 0.01Hz increments
(The display can be changed to the rotations per minute using Pr.37,
Pr.144 and Pr.811. (Refer to page 357))
4 digits
(B.E/D)
Output
current
Read H70
H0000 to HFFFF: Output current (hexadecimal)
Increment 0.01 A (FR-A820-03160(55K) or lower, FR-A840-01800(55K) or
lower)
Increment 0.1 A (FR-A820-03800(75K) or higher, FR-A840-02160(75K) or
higher)
4 digits
(B.E/D)
Output
voltage
Read H71 H0000 to HFFFF: Output voltage (hexadecimal) in 0.1 V increments
4 digits
(B.E/D)
Special
monitor
Read H72 H0000 to HFFFF: Monitor data selected in the instruction code HF3
4 digits
(B.E/D)
Special
monitor
selection No.
Read H73
Monitor selection data (Refer to page 359 for details on selection No.)
2 digits
(B.E1/D)
Write HF3
2 digits
(A1,C/D)
Fault record Read H74 to H77
H0000 to HFFFF: Two latest fault records
(Refer to page 643 for details on fault record read data.)
4 digits
(B.E/D)
Operation
command
(extended)
Write HF9
Control input commands such as forward rotation signal (STF) and reverse
rotation signal (STR) can be set. (For the details, refer to page 577.)
4 digits
(A,C/D)
Operation
command
Write HFA
2 digits
(A1,C/D)
Inverter status
monitor (extended)
Read H79
The states of the output signals such as forward rotation, reverse rotation
and inverter running (RUN) can be monitored. (For the details, refer to
page 577.)
4 digits
(B.E/D)
Inverter status
monitor
Read H7A
2 digits
(B.E1/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
(The display can be changed to the rotations per minute using Pr.37,
Pr.144 and Pr.811. (Refer to page 357))
4 digits
(B.E/D)
Set frequency
(EEPROM)
H6E
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
With the read data H30A0
Fault record display example (instruction code H74)
(Last fault : THT)
(Present fault : OPT)
0
b15
Present fault
(HA0)
Last fault
(H30)
0110000
b8
1
b7
0100000
b0