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Time Required For Inverter Communication Instructions - Mitsubishi Electric FX5 User Manual

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Time required for inverter communication instructions

Outline
The period of time after one inverter communication instruction is driven until communication with the inverter is completed
(SM8029 turns ON) is considered as the required time for the inverter communication instruction as shown.
X0
SET
M0
Inverter communication
instruction
SM8029
RST
M0
SM8029
T
1
First send/receive of
the instruction
Communication
preparation processing
T
4
Inverter
waiting time
*1 The time required for the "n"th time send/receive of the instruction.
Some inverter communication instructions execute several send/receives. The following table shows the number of send/
receives in each instruction.
Inverter communication instruction
IVCK
IVDR
IVRD
Change of the 2nd parameter is unnecessary.
Change of the 2nd parameter is necessary.
IVWR
Change of the 2nd parameter is unnecessary.
Change of the 2nd parameter is necessary.
IVBWR
Number of times of communication (s2)
IVMC
*2 For parameters requiring change of the 2nd parameter, refer to Page 117 Second parameter specification code.
M0
M0
Tinv
T
2
Second send/receive of
the instruction
T
5
Request
message
T
[n]
*1
7
creation
The request message
is being sent
*2
*2
"N"th send/receive of
the instruction
T
[n]
*1
6
T
[n]
*1
T
[n]
*1
8
9
Inverter data
check time
The response message is
being received
Number of send/receives per instruction
1
1
2
3
2
3
(s2)  2 + Number of parameters requiring change of the 2nd parameter
1
4 INVERTER COMMUNICATION
T
3
Communication
end processing
*2
4.4 Specifications
4
73

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