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PID control
CAUTION
⋅ If the multi-speed (RH, RM, RL signal) or Jog operation (JOG signal) is entered with the X14 signal ON, PID control is stopped
and multi-speed or Jog operation is started.
⋅ If the setting is as follows, PID control becomes invalid.
Pr. 22 Stall prevention operation level = "9999" (analog variable)
Pr. 79 Operation mode selection = "6" (switchover mode))
⋅ When the Pr. 128 setting is "20, 21, 120, 121", note that the input across inverter terminals 1 and 5 is added to the set value
across terminals 2 and 5.
⋅ Changing the terminal function using any of Pr. 178 to Pr. 189, Pr. 190 to Pr. 196 may affect the other functions. Please set
parameters after confirming the function of each terminal.
⋅ When PID control is selected, the minimum frequency is the frequency set in Pr. 902 and the maximum frequency is the
frequency set in Pr. 903. (Pr. 1 Maximum frequency and Pr. 2 Minimum frequency settings are also valid.)
⋅ The remote operation function is invalid during PID operation.
⋅ When the control is switched to PID control during
normal operation, the frequency command value
calculated by PID operation using 0Hz as standard is
used without the frequency during the operation.
PID action
Frequency
command
PID set point
Frequency command
during normal operation
ON
Operation when control is switched to PID control during normal operation
Normal operation PID operation Normal operation