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(2) View the register address of the control word through IO mapping
Note: the specific IO address value shall be used according to the actual display setting of PLC.
(3) VFD Operation
Set【6060h:Mode of operations】to 2 (speed mode)
Set【5000h:Command】to control the frequency converter.
For example, if 257 is written, the frequency converter will run forward. Write 256, and the frequency converter
deceleration shutdown. Other commands can be converted by customers. (see Chapter 8 for detailed usage rules)
Set【5010h:Target Speed】,which corresponds to the percentage of the maximum output frequency P0-13
10000
13-P0frequency output MaximumData
velocitytargetvl
Data corresponds to the value given in 5010h. The given range of data is 0~10000. Values beyond the given range
cannot be written.
For example: P0-13=50.00Hz, if 1000 is written in 5010h, the frequency converter operates at 5.00Hz forward,
write -1000, and the frequency converter operates at 5.00Hz reverse.
Read【5100h: status word】to obtain the status feedback of the frequency converter.
Note: Check the version number of the expansion card through the frequency converter U4-09. If U4-09=100,
5010h will give the frequency (unit: 0.01Hz).
For example, if 1000 is written in 5010h, the frequency converter operates in forward direction at 10.00 Hz, if
-1000 is written, the frequency converter operates in reverse direction at 10.00 Hz.
10.1.5 Instruction read / write
Note: Select the corresponding register address according to different protocols.
Taking the CiA402 protocol as an example:
(1) Write SDO write instructions to associate addresses with registers, or modify parameters with corresponding
register addresses.
Example ①: Modify the acceleration time P0-18 through SDO write instruction. According to chapter 6.3, write
the object index of reading acceleration time P0-18: H2012.
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