Mitsubishi FR-E520-0.1KN

PARAMETERS
116
<Computer programming>
(
1
)
Communication protocol
Data communication between the computer and inverter is performed using the
following procedure:
Data read
Data write
1) 5)4)
3)2)
*
1
Tim
e
↓
(Data flow)
Inverter
Inverter
Computer
Computer
↓
(Data flow)
*
2
*1. If a data error is detected and a retry must be made, execute retry operation with
the user program. The inverter comes to an alarm stop if the number of consecutive
retries exceeds the parameter setting.
*2. On receipt of a data error occurrence, the inverter returns "reply data 3" to the
computer again. The inverter comes to an alarm stop if the number of consecutive
data errors reaches or exceeds the parameter setting.
(
2
)
Communication operation presence/absence and data format types
Communication operation presence/absence and data format types are as follows:
No. Operation
Run
Command
Running
Frequency
Parameter
Write
Inverter
Reset
Monitor-
ing
Parame-
ter Read
1)
Communication request is sent to
the inverter in accordance with the
user program in the computer.
A'
A
(A")Note
A
(A")Note
ABB
2) Inverter data processing time Present Present Present Absent Present Present
No error
Request
accepted
C C C Absent
E, E'
(E
"
)
Note
E
3)
Reply data from
the inverter
(Data 1)) is
checked for
error.
With error
request rejected
D D D Absent F F
4) Computer processing delay time Absent Absent Absent Absent Absent Absent
No error
No
processing
Absent Absent Absent Absent G G
5)
Answer from
computer in
response to reply
data 3). (Data 3) is
checked for error)
With error 3) Absent Absent Absent Absent H H
Note: Data format is A" or E" when you set any of "0.01 to 9998" in Pr. 37 "speed
display" and "1" in data code "FF
H
".