Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 852 / 1218

(N) Operation via communication and its settings Parameters
5 - 650
Refer to page 5-638 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).
To read/write C3 (Pr. 902) or C6 (Pr. 904) after inverter reset or parameter clear, execute from ( )
again.
In
v
e
rt
er model monitor
Inverter
model
Read H7C
Reading inverter model in ASCII code.
"H20" (blank code) is set for blank area
Example of "FR-A840-1 (FM type)"
H46, H52, H2D, H41, H38, H34, H30, H2D, H31, H20, H20 ....H20
20 digits
(B, E3/D)
Capacity Read H7D
Reading inverter ND rated capacity in ASCII code.
Data is read in increments of 0.1kW, and rounds down to
0.01kW increments
"H20" (blank code) is set for blank area
Example:
0.75K ................ " 7" (H20, H20, H20, H20, H20, H37)
6 digits
(B, E2/D)
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 Inverter send data Description
ENQ 00 FF 0 01 70 ACK 00 Set "H01" in the extended link parameter
ENQ 00 EC 0 01 79 ACK 00 Set "H01" in second parameter changing
ENQ 00 5E 0 0A STX 00 0000 ETX 20 C3 (Pr. 902) is read. 0% is read.
ENQ 00 60 0 F6 STX 00 0000 ETX 20 C6 (Pr. 904) is read. 0% is read.
Tab. 5-282: Example for data transmission
Item
Read/
Write
Instruc-
tion code
Data description
Number of
data digits
(Format)
Tab. 5-281: Setting of the instruction codes and data (3)