4-2 Function Mode 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. 4 Functions 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.
•If P/PI switching is selected in the multi-function input selection, proportional integral compensation is enabled while the signal is off; proportional compensation is enabled while the signal is on. If P/PI switching is not selected in multi-function inputs 1 to 8 (C001 to C008), proportional integral compensation is enabled. 4-88 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