Frequency setting by analog input (terminal 2, 4)
Perform operation by analog input current
When the pressure or temperature is controlled constant by a fan, pump, etc., automatic
operation can be performed by inputting the output signal 0/4 to 20mA of the adjuster to across
the terminals 4-5.
The AU signal must be turned on to use the terminal 4.
Perform forward/reverse rotation by analog input (polarity reversible operation)
Setting "10" or "11" in Pr. 73 and adjusting Pr. 125 (Pr. 126) "Terminal 2 frequency setting gain
frequency" (Terminal 4 frequency setting gain frequency) and C2 (Pr. 902) "Terminal 2
frequency setting bias frequency" to C7 (Pr.905) "Terminal 4 frequency setting gain" makes
reverse operation by terminal 2 (terminal 4) valid.
When performing reversible operation by terminal 2 (0 to 5V) input.
Set "11" in Pr. 73 to make reversible operation valid.
Set frequency at maximum analog input in Pr. 125 (Pr. 903).
Set 1/2 of the value set in C4 (Pr. 903) in C3 (Pr. 902).
Reversible operation is performed when 0 to 2.5V DC is input and forward rotation when
2.5 to 5V DC.
Set frequency [Hz]
When reversible operation is set, be aware of reverse rotation operation when analog
input stops (only the start signal is input).
When reversible operation is valid, reversible operation (0 to 4mA: reverse operation, 4mA
to 20mA: forward operation) is performed by terminal 4 in the initial setting.
6 - 178
using terminal 4 (0/4–20mA DC)
Frequency setting by the function "Current
input 0/4–20mA" assigned to terminal 4
Terminal 2 input [V]