50
If both Run Fwd and Run Rev are ON, the start signal is not changed. (The previous status remains unchanged.)
The communication continues during the error reset of the inverter.
The following table shows the relation among Write Attr (Bit7 of Byte0), NetRef (Bit6 of Byte0), and Byte1 to Byte5.
Byte1
Parameter
Instance ID
Instance ID can be specified.
When 00 is specified, instance ID is regarded as 1.
Byte2
Byte3
Speed Ref
or
Parameter
Write Data
Speed reference (1 r/min) or parameter write data.
Selection conditions are determined according to a combination of "NetRef (Bit 6 of Byte 0)" and "Write Attr
(Bit 7 of Byte 0)".
[When speed reference is selected]
Conversion of speed and frequency depends on the
Pr.144
)
Byte4
Parameter
Class ID
Class ID to access to the inverter parameter (class 0x2A, 0x66, 0x67 etc.)
Byte5
Parameter
Attribute ID
Attribute ID to access to the inverter parameter
Write Attr
(Bit7 of Byte0)
NetRef
(Bit6 of Byte0)
Byte2, Byte3
Byte4 (Class ID)
Byte1 (Instance ID)
Byte5 (Attribute ID)
0
0
Speed reference invalid
Specifies the attribute to be read.
0
1
Speed reference valid
1
0
Value to be written to the attribute
Specifies the attribute to be read or
written.
1
1
