Mitsubishi Electric FR-A820-00046 Instruction Manual page 805

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Parameters
Item
Inverter
model
Capacity
Tab. 5-274: Setting of the instruction codes and data (3)
Refer to page 5-613 for data formats (A, A1, A2, B, C, C1, D, E, E1, E2, E3, F)
Turning OFF the power supply while clearing parameters with H5A5A or H55AA returns the
communication parameter settings to the initial settings.
Refer to the calibration parameter list below for details on calibration parameters.
The gain frequency can be also written using Pr. 125 (instruction code: H99) or Pr. 126 (instruction
code: H9A).
NOTES
Set 65520 (HFFF0) as a parameter value "8888" and 65535 (HFFFF) as "9999".
For the instruction codes HFF, HEC and HF3, their values are held once written but cleared to zero
when an inverter reset or all clear is performed.
When a 32-bit parameter setting or monitored value is read and the read value exceeds HFFFF, the
reply data will be HFFFF.
Example
When reading the C3 (Pr. 902) and C6 (Pr. 904) settings from the inverter of station No. 0.
Computer send data
³ ENQ 00 FF 0 01 70
· ENQ 00 EC 0 01 79
» ENQ 00 5E 0 0A
¿ ENQ 00 60 0 F6
Tab. 5-275: Example for data transmission
To read/write C3 (Pr. 902) or C6 (Pr. 904) after inverter reset or parameter clear, execute from (³)
again.
FR-A800
Instruc-
Read/
tion
Data description
Write
code
Reading inverter model in ASCII code.
"H20" (blank code) is set for blank area
Read
H7C
Example of "FR-A840-1 (FM type)"
H46, H52, H2D, H41, H38, H34, H30, H2D, H31, H20, H20 ....H20
Reading inverter ND rated capacity in ASCII code.
Data is read in increments of 0.1kW, and rounds down to
0.01kW increments
Read
H7D
"H20" (blank code) is set for blank area
Example:
0.75K................ " 7" (H20, H20, H20, H20, H20, H37)
Inverter send data
ACK 00
ACK 00
STX 00 0000 ETX 20
STX 00 0000 ETX 20
(N) Operation via communication and its settings
Description
Set "H01" in the extended link parameter
Set "H01" in second parameter changing
C3 (Pr. 902) is read. 0% is read.
C6 (Pr. 904) is read. 0% is read.
Number of
data digits
(Format)
20 digits
(B, E3/D)
6 digits
(B, E2/D)
5 - 625

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