Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 649

Item
Parameter clear
All parameter clear
Parameter
Link parameter
extended setting
Second parameter
changing (instruction
code
HFF = 1, 9)
Multi command
Inverter model
Capacity
*1 Refer to page 638
*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).
NOTE
• Set 65520 (HFFF0) as a parameter value "8888" and 65535 (HFFFF) as "9999".
• For the instruction codes HFF, HEC, and HF3, their values once written are held, but cleared to zero when an inverter reset
or all clear is performed.
• When a 32-bit parameter setting or monitor item is read and the value to be read exceeds HFFFF, HFFFF is returned.
Example) When reading the C3 (Pr.902) and C6 (Pr.904) settings from the inverter of station No. 0.
Computer send data
a ENQ 00 FF 0 01 7D
b ENQ 00 EC 0 01 79
c ENQ 00 5E 0 0A
d ENQ 00 60 0 F6
To read/write C3 (Pr.902) or C6 (Pr.904) after inverter reset or parameter clear, execute from (a) again.
648
5. PARAMETERS
5.15 (N) Communication operation parameters
Read/ Instruction
write code
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 cleared.
• All parameter clear
H9966: Parameters including communication parameters are cleared.
Write HFC
H55AA: Parameters other than communication parameters are cleared.
For the details of whether or not to clear parameters, refer to
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
registered (refer to
Read H00 to H63 Refer to the instruction code
values as required. When setting Pr.100 and later, the link parameter
Write H80 to HE3
extended setting must be set.
Read H7F
Parameter settings are switched according to the H00 to H0D settings.
For details of the settings, refer to the instruction code
Write HFF
When setting the calibration parameters
Read H6C
H00: Frequency
H01: Parameter-set analog value
Write HEC
H02: Analog value input from terminal
Read/ Available for writing 2 commands, and monitoring 2 items for reading data.
HF0
write (Refer to
The inverter model can be read in ASCII code.
"H20" (blank code) is set for blank area.
Read H7C
Example) FR-A840-1 (FM type):
H46,H52,H2D,H41,H38,H34,H30,H2D,H31,H20,H20...H20
The inverter ND rated capacity can be read in ASCII code.
Data is read in increments of 0.1 kW, and rounds down to 0.01 kW
Read H7D increments.
"H20" (blank code) is set for blank area.
Example) 0.75K: " 7" (H20, H20, H20, H20, H20, H37)
for data formats (A, A1, A2, B, C, C1, D, E, E1, E2, E3, F).
ACK 00
ACK 00
STX 00 0000 ETX 20
STX 00 0000 ETX 20
Data description
page 331).
(page 824) and write and/or read parameter
*4
page 651 for details.)
Inverter send data
page 824.
(page 824).
*3
Description
"H01" is set in the extended link parameter.
"H01" is set in the second parameter changing.
C3 (Pr.902) is read. 0% is read.
C6 (Pr.904) is read. 0% is read.
Number of
data digits
*1
(format)
*2
4 digits (A,C/D)
*2
4 digits (B.E/D)
4 digits (A,C/D)
2 digits (B.E1/
D)
2 digits (A1, C/
D)
2 digits (B.E1/
D)
2 digits (A1, C/
D)
10 digits (A2,
C1/D)
20 digits (B, E3/
D)
6 digits (B, E2/
D)