J5 Codes (External Pid Control 1) - Fuji Electric FRENIC-HVAC User Manual

6.3.10 J5 codes (External PID control 1)

J501 External PID Control 1 (Mode selection)
Apart from PID control specified by J101/J210, the inverter has three channels of PID control
to control external devices such as dampers and valves so that no external PID controllers are
required.
Under PID control, the inverter detects the state of a control target object with a sensor or the
similar device and compares it with the commanded value (e.g., temperature control
command). If there is any deviation between them, PID control operates to minimize it. That
is, it is a closed loop feedback system that matches controlled variable (feedback amount).
PID control expands the application area of the inverter to process control (e.g., flow control,
pressure control, and temperature control).
- Data setting range: 0 to 32
Data for
J501/J601/J651
0
1
2
11
12
21
22
31
32
J601 (External PID Control 2 (Mode selection))
J651 (External PID Control 3 (Mode selection))
Disable
Enable process control (Normal operation)
Enable process control (Inverse operation)
Enable process control, interlocking with inverter running (Normal operation)
When the output signal RUN ("Inverter running") is ON, the process control
operates.
Enable process control, interlocking with inverter running (Inverse operation)
When the output signal RUN ("Inverter running") is ON, the process control
operates.
Enable process control by external digital signal (Normal operation)
Turning ON the terminal command "External PID control ON command"
operates the process control.
Enable process control by external digital signal (Inverse operation)
Turning ON the terminal command "External PID control ON command"
operates the process control.
Enable process control by external digital signal, interlocking with inverter
running (Normal operation)
Turning ON the terminal command "External PID control ON command"
when the output signal RUN ("Inverter running") is ON, the process control
operates.
Enable process control by external digital signal, interlocking with inverter
running (Inverse operation)
Turning ON the terminal command "External PID control ON command"
when the output signal RUN ("Inverter running") is ON, the process control
operates.
6-217
6.3 Details of Function Codes
Function