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Mitsubishi Electric FR-E720-0.1K(SC) Instruction Manual Page 250

Fr-e700 series.
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Special operation and frequency control
(5)
PID automatic switchover control (Pr. 127)
The system can be started up without PID control only at a start.
When the frequency is set to Pr. 127 PID control automatic switchover frequency within the range 0 to 400Hz, the inverter
starts up without PID control from a start until output frequency is reached to the set frequency of Pr. 127, and then it shifts
to PID control. Once the system has entered PID control operation, it continues PID control if the output frequency falls to
or below Pr.127.
Output frequency
Pr. 127
STF
PID
(6)
PID monitor function
The PID control set point, measured value and deviation value can be displayed on the operation panel and output from
terminal FM.
Integral value indicating a negative % can be displayed on the deviation monitor. 0% is displayed as 1000. (The deviation
monitor cannot be output from the terminal FM.)
For each monitor, set the following value in Pr. 52 DU/PU main display data selection and Pr. 54 FM terminal function selection.
Setting
Monitor Description
52
PID set point
53
PID measured value
54
PID deviation
250
Without
PID control
PID control
Minimum
Terminal FM Full
Increments
0.1%
0.1%
0.1%
Scale
100%
100%
Value cannot be set to Pr. 54.
Displays 1000 when the PID deviation is 0%.
Time
Remarks

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