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PID control
4
PARAMETERS
Pre-charge operation
⋅ When the measured amount reaches the pre-charge ending level
When the measured amount reaches the Pr. 761
setting or higher, the pre-charge operation
ends, and PID control starts.
Pr. 761 Pre-charge ending level
≠ 9999
⋅ When the elapsed time reaches the pre-charge ending time
When the pre-charging time reaches the Pr. 762
setting or higher, the pre-charge operation
ends, and PID control starts.
Pr. 761 Pre-charge ending level
= 9999
Pr. 762 Pre-charge ending time
≠ 9999
⋅ When the signal is input to end the pre-charge operation
When the X77 signal turns ON, the pre-charge
operation ends, and the PID control starts.
(If a start command is given while the X77
signal is ON, the pre-charge operation is not
performed, and PID control is performed from
the beginning. )
Pr. 178 to Pr. 189
= X77 assigned
Time
Time
Pr.127
0 Hz
STF
PID control
Pr.761
Measured value[PSI]
Output frequency
[Hz]
Output signal
Y49
Pre-charge
Ending level
Pr.127
0 Hz
STF
PID control
Pr.762
Output frequency
[Hz]
Output
signal
Y49
Pre-charge
Ending time
Time
Pre-charge end
command
X77
Pr.127
0 Hz
STF
PID control
Output frequency
[Hz]
Output signal
Y49
Pre-charge
Time
20ms or more
REMARKS
⋅ If the X77 signal stays ON, the pre-charge
operation is not performed after the PID
output suspension (SLEEP). To enable the
X77 signal function after the PID output
suspension (SLEEP), confirm the during pre-
charge operation signal (Y49) = OFF, and
turn OFF the X77 signal.
⋅ To perform PID control immediately after the
PID output suspension (SLEEP), keep the
X77 signal ON until the PID control ends.