4-5
Chapter 4. BASIC OPERATION
Procedure for changing flowrate in analog setting (a model with analog input /
output function)
To change the SP value (setting flowrate value) using an external setting voltage,
"1: Analog setting" is selected at the flowrate setup method selection C-03 in the
function setup.
For the function setup method, refer to;
Chapter 5. ADVANCED OPERATION.
The setting voltage range can be selected at the analog input voltage range selection
C-05 in the function setup.
The analog setting voltage value to the SP value can be calculated from the
calculation formulas in the following table:
C-05
Voltage
range
Setting voltage formulas
0 0 to 5 V Setting voltage [V] = Setting flowrate ÷ Full-scale flowrate × 5.00
1 1 to 5 V Setting voltage [V] = Setting flowrate ÷ Full-scale flowrate × 4.00 + 1.00
Note
• When the "1: Function enabled" is selected at the analog optional scaling function
C-28 in the function setup, the full-scale flowrate at analog setting can be
optionally changed.
In this case, the full-scale flowrate of analog flowrate output voltage (PV output
voltage) is also changed as same as input voltage. The scaling flowrate is set in the
parameter setup mode.
For the function setup and parameter setup method, refer to;
Chapter 5. ADVANCED OPERATION.
Handling Precautions
• Do not apply a negative voltage or a large voltage exceeding 5 V to the analog
setting voltage input terminal. Doing so might cause faulty operation or
malfunction.
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