Mitsubishi Electric FR-A820-00046 Instruction Manual page 798

(N) Operation via communication and its settings
Error
Code
HD
HE
HF
Tab. 5-271: Error codes (2)
Response time
Fig. 5-312:
Formula for data transmission time
Communication speed
● Communication specifications
Name
Stop bit length
Data Length
Parity check
Tab. 5-272: Communication specifications
NOTES In addition to the above, 1 start bit is necessary.
Minimum number of total bits: 9 bits, maximum number of total bits: 12 bits.
● Data check time
Item
Various monitors, operation command,
Frequency setting (RAM)
Parameter read/write,
Frequency setting (EEPROM)
Parameter clear / all clear
Reset command
Tab. 5-273: Data check time
5 - 618
Error Item Error Description
⎯ ⎯
⎯ ⎯
⎯
Normal (no error)
Data sending time (refer to the following formula)
Inverter data processing time = Waiting time
Computer

Inverter
Inverter

Computer
Response time
1
Number of data
× characters
(Refer to page 5-613)
(bps)
With
Without
+ Data check time
(setting x 10 ms) (Depends on the instruction code
(see tab. 5-273))
Time
10 ms or more necessary
Data sending time (refer to the following formula)
Communication specifications
× (Total number of bits) = data transmission time (s)
(Refer to the following.)
Number of bits
1 bit
2 bits
7 bits
8 bits
1 bit
0 bits
Check time
< 12 ms
< 30 ms
< 5 s
No answer
Parameters
Inverter Operation
⎯
⎯
⎯
I001327E