9.2 Details of Function Codes
9-65
Chap. 9 FUNCTION CODES
Remote process command (J02)
Selects the means by which the PID control command can be set.
Data for J02 Means
0 Keypad
1 Built-in potentiometer, terminal [12] or [C1] for PID process command 1
4 Via RS-485 communication
If an analog command (built-in potentiometer, terminal [12] or [C1]) is selected as the PID
process command, it is also necessary to select PID process command 1 for the analog input
side using function codes E60, E61 and E62.
Refer to function codes E60 to E62 for details.
The multistep frequency C08 set by the terminal command (SS4) can also be use
as a preset amount for the PID process command, in addition to that of function
code J02.
Calculate the setting data of the process command using the equation below.
Process command data (%) = set multistep frequency
y maximum output frequency
u 100
Selecting feedback
Select either analog input terminal [12] or [C1] for the PID control feedback signal terminal.
Refer to function codes E60 to E62 for details.
Conversion factor for indication and monitoring of PID value
To monitor the PID process command and its feedback, set the conversion factor used for
transformation between the PID control amount (such as temperature) and numerals expressing
the value.
Refer to function codes E40 and E41 for details on the conversion factor, and to E43 for
details on monitoring.
Gain and bias settings for the PID command
As with the drive frequency command, gain and bias can be set for the PID command.
Refer to function codes C51 and C52 for details.
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