Mitsubishi Electric FR-A720-00030-NA Instruction Manual page 305

Frequency/torque setting by analog
input (terminal 1, 2, 4)
Forward
rotation
4 to 20mADC
Current
Frequency
input
setting
equipment
Connection diagram using
terminal 4 (4 to 20mADC)
Forward
rotation
4 to 20mADC
Current
Frequency
input
setting equipment
Connection diagram using
terminal 2 (4 to 20mADC)
Reverse
Set frequency
(Hz)
rotation
60
Reversible
Not reversible
-5
0 Terminal 1 input (V)
(-10)
Compensation input characteristic
when STF is on
Parameters referred to 
Pr. 22 Stall prevention operation level
Pr. 125 Terminal 2 frequency setting gain frequency, Pr. 126 Terminal 4 frequency setting gain frequency
Pr. 252, Pr. 253 Override bias/gain
Pr. 858 Terminal 4 function assignment, Pr. 868 Terminal 1 function assignment
294
(3) Perform operation by analog input current
Inverter
 When the pressure or temperature is controlled constant by a fan, pump,
STF
etc., automatic operation can be performed by inputting the output signal
Voltage/current
AU
input switch 0 to 20mADC of the adjuster to across the terminals 4 and 5.
SD  The AU signal must be turned ON to use the terminal 4.
4
5
 Setting any of "6, 7, 16, 17" in Pr. 73 and a voltage/current input switch in
Inverter
the ON position changes the terminal 2 to the current input specification.
STF
Voltage/current
At this time, the AU signal need not be turned ON.
input switch
SD
4 2
2
5
(4) Perform forward/reverse rotation by analog input
(polarity reversible operation)
Forward
rotation
 Setting any of "10 to 17" in Pr. 73 enables polarity reversible operation.
 Providing  input (0 to 5V or 0 to 10V) to the terminal 1 enables
forward/reverse rotation operation according to the polarity.
+5
(+10)
Refer to page 152
Refer to page 295
Refer to page 299
Refer to page 290