Inovance MD500 Series - Write Frequency;Torque Reference

6. Description of Parameters
- 190 -
6
6.10.4 Write Frequency/Torque Reference
You can set frequency reference, torque limit, V/F separation voltage, PID reference and PID
feedback via communication address 1000H. The data range is -10000 to 10000, corresponding
to -100.00% to 100.00%.
For example, to set main frequency reference to 8000 by using Modbus protocol, rst set F0-03
= 9 and send write command 01 06 10 00 1F 40 84 CA. In the command,
● 01H (settable): AC drive address
● 06H: write command
● 1000H: Communication address of giving the toque reference
● 1F40H: torque reference (converted into decimal 10000)
● 84CAH: CRC check
To set torque reference to -8000, send write command 01 06 10 00 E0 C0 C4 9A. In the
command, E0C0 is the lowest four bits of the hexadecimal number converted from -8000.
Note
Range of frequency reference given via communication is -10000 to 10000,
corresponding to -100.00% to 100.00%. -100.00% corresponds to negative
maximum frequency, 0.00% corresponds to minimum frequency, and 100.00%
corresponds the maximum frequency.
Suppose that F0-10 = 50 Hz, if frequency reference in write command is 1F40H,
converted to decimal 8000, frequency reference that is written is 50 x 80.00%
= 40 Hz.
Sending Message Response Message
ADDR 01H ADDR 01H
CMD 06H CMD 06H
Parameter address high bits 10H Parameter address high bits 10H
Parameter address low bits 00H Parameter address low bits 00H
Data content high bits 1FH Data content high bits 1FH
Data content low bits 40H Data content low bits 40H
CRC high bits 84H CRC high bits 84H
CRC low bits CAH CRC low bits CAH