Mitsubishi Electric 800 Series Instruction Manual page 139

Read/
Item
write
Set frequency
(RAM)
Read
Set frequency
(EEPROM)
Set frequency
(RAM)
Write
Set frequency
(RAM, EEPROM)
Inverter reset Write
Fault history clear Write
Parameter clear /
Write
All parameter clear
Read
Parameter
Write
Read
Link parameter
extended setting
Write
Read
Second parameter
changing
(instruction code
Write
HFF = 1, 9)
Read/
Multi command
write
Model Read
Capacity Read
*1 Refer to page 131
*2 Turning OFF the power supply while clearing parameters with H5A5A or H55AA returns the communication parameter settings to the initial
settings.
*3 Refer to the following calibration parameter list for details on the calibration parameters.
*4 The gain frequency can be also written using Pr.125 (instruction code: H99) or Pr.126 (instruction code: H9A).
138
3. RS-485 Communication
3.4 Mitsubishi inverter protocol (computer link communication)
Instruction
code
Read the set frequency or rotations per minute (machine speed) from the
H6D
RAM or EEPROM.
H0000 to HFFFF: Set frequency in 0.01 Hz increments (The display can
be changed to the rotations per minute (machine speed) using Pr.37 and
H6E
Pr.53. Refer to the FR-E800 Instruction Manual (Function).)
Write the set frequency or rotations per minute (machine speed) into the
HED
RAM or EEPROM.
H0000 to HE678 (0 to 590.00 Hz): Frequency in 0.01 Hz increments.
(The display can be changed to the rotations per minute (machine speed)
using Pr.37 and Pr.53. Refer to the FR-E800 Instruction Manual
HEE
(Function).)
To change the set frequency consecutively, write data to the RAM of the
inverter. (Instruction code: HED)
H9696: Inverter reset
As the inverter is reset at the start of communication by the computer, the
inverter cannot send reply data back to the computer.
HFD
H9966: Inverter reset
After the computer correctly starts communication and send data to the
inverter, the inverter returns the ACK signal to the computer before being
reset.
HF4 H9696: Fault history is cleared.
All parameters return to initial values.
Whether to clear communication parameters or not can be selected
according to the data.
• Parameter clear
H9696: Parameters including communication parameters are cleared.
H5A5A: Parameters other than communication parameters are
*2
cleared.
• All parameter clear
H9966: Parameters including communication parameters are cleared.
HFC H55AA: Parameters other than communication parameters are
*2
cleared.
For the details of whether or not to clear parameters, refer to the FR-E800
Instruction Manual (Function).
When a clear is performed with H9696 or H9966, communication related
parameter settings also return to the initial values. When resuming the
operation, set the parameters again. Performing a clear will clear the
instruction code HEC, HF3, and HFF settings.
Only H9966 and H55AA (All parameter clear) are valid when a password
is set (refer to the FR-E800 Instruction Manual (Function)).
H00 to H63 Refer to the FR-E800 Instruction Manual (Function) for the instruction
codes, and write and/or read parameter values as required. When setting
H80 to HE3
Pr.100 and later, set the link parameter extended setting.
H7F Parameter settings are changed (extended) according to the settings.
For details of the settings, refer to instruction code list in the FR-E800
HFF
Instruction Manual (Function).
H6C
When setting the calibration parameters
*4
H00: Frequency
HEC
H01: Parameter-set analog value
H02: Analog value input from terminal
Available for writing 2 commands, and monitoring 2 items for reading data.
HF0
(Refer to page 141
The inverter model can be read in ASCII code.
"H20" (blank code) is set for blank area.
H7C
Example) FR-E820-1:
H46,H52,H2D,H45,H38,H32,H30,H2D,H31,H20,H20...H20
The capacity in the inverter model can be read in ASCII code.
Data is read in increments of 0.1 kW, and rounds down to 0.01 kW
H7D increments.
"H20" (blank code) is set for blank area.
Example) 0.75K: "
for data formats (A, A1, A2, B, C, C1, D, E, E1, E2, E3, F).
Data description
*3
for details.)
7" (H20, H20, H20, H20, H20, H37)
Number of data
*1
digits (format)
4 digits (B and E (E2)
/ D)
4 digits (A (A2) and
C/D)
4 digits (A and C/D)
4 digits (A and D)
4 digits (A and C/D)
4 digits (A and C/D)
4 digits (B and E/D)
4 digits (A and C/D)
2 digits (B and E1/D)
2 digits (A1 and C/D)
2 digits (B and E1/D)
2 digits (A1 and C/D)
10 digits (A2 and C1/
D)
20 digits (B and E3/
D)
6 digits (B and E2/D)