Mitsubishi Electric FR-F800, Instruction Manual

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Parameters (A) Application parameters
FR-F800 5 - 355
●
The set point/deviation input method can also be flexibly selected by Pr. 609 "PID set point/
deviation input selection" and the measured value input method can be selected by Pr. 610 "PID
measured value input selection". Selection by Pr. 609 and Pr. 610 is valid when Pr. 128 = "1000 to
2011".
When the same command source has been selected for the set point and measured value using
Pr. 609 and Pr. 610, set point input is invalid. (The inverter runs at set point 0%)
●
When Pr. 610 "PID measured value input selection" = "101 to 105", the square root of the input
value is used as the measured value.
Setting value
Command source Input method
Pr. 609 Pr. 610
1 1
Terminal 1
Direct input
2 2
Terminal 2
3 3
Terminal 4
4 4 CC-Link communication
5 5 PLC function
⎯
101
Terminal 1
Square root input
⎯
102
Terminal 2
⎯
103
Terminal 4
⎯
104 CC-Link communication
⎯
105 PLC function
Tab. 5-169: Setting of Pr. 609 and Pr. 610
I003040E
Fig. 5-167: Flow rate
∝
√
Pressure
NOTE When terminals 2 and 4 are selected for deviation input, perform bias calibration using C3 and C6
to prevent a minus voltage from being entered as the deviation input signal. Input of a minus volt-
age might damage devices and the inverter.
Pressure (measured value)
√
Pressure
(measured value used
for controlling)
Flow rate