9.2 Details of Function Codes
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Chap. 9 FUNCTION CODES
y99 Link Function for Supporting Data Input
This function code switches an RS-485 communications link with FRENIC Loader. Enabling
the RS-485 communications link allows the inverter to receive frequency and run commands
from the Loader.
Since the Loader automatically sets data of function codes, no setting with the keypad is
required.
If the PC runs out of control in RS-485 communication, a stop command may not be sent to the
inverter. To prevent this from happening, set 0 to y99 so that the inverter will follow the settings
of function code H30.
Note that the inverter cannot save the data setting in y99. Turning the power off resets the data
in y99 to 0.
Function
Data for y99
Frequency command source Run command source
0 Setting of H30 Setting of H30
1 Loader (S01 and S05) Setting of H30
2 Setting of H30 Loader (S06)
3 Loader (S01 and S05) Loader (S06)
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