Fuji Electric FRENIC-MEGA, Инструкция по эксплуатации

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J08, J09 PID Control (Pressurization starting frequency, pressurizing time)
J15 (PID Control, Stop frequency for slow flowrate)
J16 (PID Control, Slow flowrate level stop latency)
J17 (PID Control, Starting frequency)
Slow flowrate stopping function (J15 to J17)
J15 to J17 configure the slow flowrate stopping function in pump control, a function that stops the inverter when the
discharge pressure rises, causing the volume of water to decrease.
When the discharge pressure has increased, decreasing the reference frequency (output of the PID processor) below the stop
frequency for slow flowrate level (J15) for the period of slow flowrate level stop latency (J16), the inverter decelerates to
stop, while PID control itself continues to operate. When the discharge pressure decreases, increasing the reference
frequency (output of the PID processor) above the starting frequency (J17), the inverter resumes operation.
„
PID control (Stop frequency for slow flowrate) (J15)
Data setting range: 0.0 (Disable), 1.0 to 500.0 (Hz)
J15 specifies the frequency which triggers slow flowrate stop of inverter.
„
PID control (Slow flowrate level stop latency) (J16)
Data setting range: 0 to 60 (s)
J16 specifies the period from when the PID output drops below the frequency specified by J15 until the inverter starts
deceleration to stop.
„ PID control (Starting frequency) (J17) Data setting range: 0.0 to 500.0 (Hz)
J17 specifies the starting frequency. Set J17 to a frequency higher than the stop frequency for slow flowrate (J15). If the
specified starting frequency is lower than the stop frequency for slow flowrate, the latter stop frequency is ignored; the slow
flowrate stopping function is triggered when the output of the PID processor drops below the specified starting frequency.
„ Assignment of
PID-STP
("Motor stopped due to slow flowrate under PID control")
(E20 to E24 and E27, data = 44)
Assigning the digital output signal
PID-STP
to any of the programmable, output terminals with any of E20 through E24 and
E27 (data = 44) enables the signal to output when the inverter stops due to the slow flowrate stopping function under PID
control.
For the slow flowrate stopping function, see the chart below.