4-89
4-2 Function Mode
4
Functions
Forced Operator Function
•This function forcibly enables operation via the Digital Operator by turning on/off the multi-function
terminal if the frequency reference/RUN command sources are not set to the Digital Operator.
•If the Forced Operator function is selected in the multi-function input selection, the Inverter is
operated with the signal from the frequency reference source and RUN command source selected
in A001 and A002, when the input signal is OFF. When the signal is ON, the Inverter is forced to
operate with the frequency reference or RUN command from the Digital Operator.
•If you switch on/off this function during operation, the RUN command is reset to stop the Inverter
output. Before resuming operation, turn off the RUN command from each command source to
avoid possible danger and then input it again.
P/PI Switching Function
•This function allows you to switch the control (compensation) method for the speed control system
between proportional integral compensation and proportional compensation, when "sensorless
vector control", "0-Hz sensorless vector control", or "sensor vector control" is selected as the
control method.
RUN command
(FW, RV)
UP
DWN
Output
frequency
Acceleration/Deceleration does
not occur if the UP and DWN
terminals turn on simultaneously.
Data Symbol Function name Status Description
31 OPE Forced operator
ON
Prioritizes the command from the Digital Operator (A020,
A220 set values) over the A001 and A002 settings.
OFF Operates according to the A001 and A002 settings.
Available input terminals C001 to C008
Related codes A001, A002
Parameter No. Function name Data Default setting Unit
A044/A244/A344
V/f characteristics
selection
03: SLV (A344 is blank.)
04: 0 Hz (A344 is blank.)
05: Sensor vector
00
C001 to C008
Multi-function inputs
1 to 8 selection
43: PPI (P/PI switching)
H005/H205 Speed response 0.001 to 80.000 1.590
H050/H250 PI proportional gain 0.0 to 999.9/1000 100.0 %
H051/H251 PI integral gain 0.0 to 999.9/1000 100.0 %
H052/H252 P proportional gain 0.001 to 10.00 1.00
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