Mitsubishi Electric FR-A820-00046 Instruction Manual page 612

(T) Multi-Function Input Terminal Parameters
Running with analog input current
● For constant pressure or temperature control with fans, pumps, or other devices, automatic
operation is available by setting the regulator output signal 4 to 20 mADC to between terminals
4 and 5.
● To use the terminal 4, the AU signal needs to be turned ON.
Frequency
setting
● Setting "6, 7, 16, or 17" in Pr. 73 and turning the voltage/current input switches ON sets terminal
2 to the current input specification. Concerning the settings, the AU signal does not need to be
turned ON.
Frequency
setting
To perform forward/reverse rotation with the analog input (polarity reversible operation)
● Setting Pr. 73 to a value of "10 to 17" enables the polarity reversible operation.
● Setting ±input (0 to ±5 V or 0 to ±10 V) to the terminal 1 allows the operation of forward/reverse
rotation by the polarity.
5 - 410
Forward STF
rotation
AU
PC
4 to 20 mA DC
Current 4
input
equipment
5
Connection diagram using
terminal 4 (4 to 20 mA DC)
Forward
STF
rotation
PC
4 to 20 mA DC
2
Current
input
equipment
5
Connection diagram using
terminal 2 (4 to 20 mA DC)
Set frequency
Reverse
Forward
(Hz)
rotation
rotation
60
Reversible
Not reversible
-5 Terminal 1 input (V)
0
(-10)
Fig. 5-194:
Inverter
Frequency setting by current 4 to 20 mA DC
Voltage/current
input switch
2 4
Fig. 5-195:
Frequency setting by current 4 to 20 mA DC
Inverter
Voltage/current
input switch
2 4
Fig. 5-196:
Compensation input characteristics when STF is ON
+5
(+10)
Parameters
I002641E_G
I002642E_G
I002643E