Mitsubishi Electric FR-F740 EC Instruction Manual page 519

Parameter
Start of auxiliary motor (Pr. 584 to Pr. 586, Pr. 590)
You can set the output frequency of the inverter-operated motor in Pr. 584 to Pr. 586 at which
the commercial-power supply operation motors start. When the output frequency equal to or
higher than the setting continues for longer than the time set in Pr. 590 "Auxiliary motor start de-
tection time", the commercial-power supply motors start. In this case, the starting sequence de-
pends on the pattern in Pr. 579 "Motor connection function selection".
Pr. 584 "Auxiliary motor 1 starting frequency" value means the frequency at which the first com-
mercial-power supply motor starts when there is no additional commercial-power supply motor
running. When starting the second commercial-power supply motor when one commercial-pow-
er supply motor is running, set Pr. 585 "Auxiliary motor 2 starting frequency".
Stop of auxiliary motor (Pr. 587 to Pr. 589, Pr. 591)
You can set the output frequency of the inverter-operated motor in Pr. 587 to Pr. 589 at which
the commercial-power supply operation motors stop. When the output frequency equal to or
lower than the setting continues for longer than the time set in Pr. 591 "Auxiliary motor stop de-
tection time", the commercial-power supply motors stop. In this case, the stopping sequence de-
pends on the pattern in Pr. 579 "Motor connection function selection".
Use Pr. 587 "Auxiliary motor 1 stopping frequency" to set the frequency at which one commer-
cial-power supply motor running stops. When stopping one commercial-power supply motor
when two commercial-power supply motors are running, set Pr. 588 "Auxiliary motor 2 stopping
frequency".
PID output interruption function (SLEEP function)
(SLEEP signal, Pr. 554, Pr. 575 to Pr. 577)
If the output frequency after PID operation remains lower than the Pr. 576 "Output interruption
detection level" for longer than the time set in Pr. 575 "Output interruption detection time", the
inverter stops operation. (At this time, if "0 to 3" is set to Pr. 554 "PID signal operation selection",
output is shut off (the inverter coasts to stop) when SLEEP operation starts. If "10 to 13" is set,
the inverter decelerates to a stop in the deceleration time set in Pr.8 when SLEEP operation
starts.)
This function can reduce energy consumption in the low-efficiency, low-speed range.
Pr. 554 Setting
0 (initial value)
10
11
12
13
When the deviation (= set point − measured value) reaches PID output interruption release level
(Pr. 577 setting − 1000%) when the PID output interruption function is activated, PID output in-
terruption function is released and PID control operation is automatically resumed.
PID output suspension signal (SLEEP) is output when the PID output interruption function is ac-
tivated. At this time, the inverter running signal (RUN) turns off and the PID control activated sig-
nal (PID) turns on.
For the terminal used for the SLEEP signal output, assign the function by setting "70" (positive
logic) or "170" (negative logic) in Pr. 190 to Pr. 196 (output terminal function selection).
FR-F700 EC
FUP Signal, FDN Signal
Only signal output
Signal output + stop by fault
1
(E.PID)
2 Only signal output
Signal output + stop by fault
3
(E.PID)
Only signal output
Signal output + stop by fault
(E.PID)
Only signal output
Signal output + stop by fault
(E.PID)
Y48 Signal
Only signal output
Signal output + stop by fault
(E.PID)
Only signal output
Signal output + stop by fault
(E.PID)
PID control
SLEEP Function
Inverter coasts to a stop at the
start of SLEEP operation
Inverter decelerates to a stop
at the start of SLEEP
operation
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