Mitsubishi Electric FR-F740 EC Instruction Manual page 489

Parameter
PID output suspension function (SLEEP-Signal, Pr. 554, Pr. 575 to Pr. 577)
The inverter stops operation if the output frequency after PID operation remains at less than the
Pr. 576 "Output interruption detection level" setting for longer than the time set in Pr. 575 "Output
interruption detection time". (At this time, if "0 to 3" is set to Pr. 554 PID signal operation selec-
tion, 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 value − measured value) reaches the PID output shutoff cancel level
(Pr. 577 setting − 1000%) while the PID output interruption function is on, the PID output inter-
ruption function is canceled and PID control operation is resumed automatically.
While the PID output interruption function is on, the PID output interruption signal (SLEEP) is
output. At this time, the inverter running signal (RUN) is off and the PID control operating signal
(PID) is 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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