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Mitsubishi Electric FR-E520 Instruction Manual Page 148

Transistorized inverter.
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(2) Communication operation presence/absence and data format types
Communication operation presence/absence and data format types are as follows:
No.
Operation
Communication request is
sent to the inverter in
1)
accordance with the user
program in the computer.
Inverter data processing
2)
time
No error*
Reply data
(Request
from the
accepted)
inverter
3)
(Data 1) is
With error
checked for
(request
error.
rejected)
Computer processing delay
4)
time
No error*
Answer from
(No inverter
computer in
processing)
response to
5)
reply data 3).
With error.
(Data 3) is
(Inverter
checked for
outputs 3)
error)
again)
* In the communication request data from the computer to the inverter, 10ms or more is
also required after "no data error (ACK)". (Refer to page 141.)
Note: 1. Setting any of "0.01 to 9998" in Pr. 37 "speed display" and "1" in instruction
code "HFF" changes the data format to A" or E" (400V class). Regardless of
the instruction code "HFF" setting, the data format for 200V or 100V class is
always A" or E". The output frequency is the value of the speed display and its
unit is 0.001r/min. If the instruction code FF is not 1, the unit is 1r/min and the
4-digit data format can be used.
2. The read/write data format of Pr. 37 "speed display" is always E"/A".
Run
Running
Command
Frequency
A
A'
(A")
Note 1
Present
Present
C
C
D
D
Absent
Absent
Absent
Absent
Absent
Absent
138
PARAMETERS
Parameter
Inverter
Write
Reset
A
(A")
A
Note 2
Present
Absent
C
Absent
D
Absent
Absent
Absent
Absent
Absent
Absent
Absent
Parameter
Monitoring
Read
B
B
Present
Present
E,E'
E
(E")
(E")
Note 1
Note 2
F
F
Absent
Absent
G
G
H
H

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