Mitsubishi Electric FR-A800, Instruction Manual

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Parameters (T) Multi-Function Input Terminal Parameters
FR-A800 5 - 393
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.
●
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.
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.
Fig. 5-190:
Frequency setting by current 4 to 20 mA DC
I002641E
Fig. 5-191:
Frequency setting by current 4 to 20 mA DC
I002642E
Fig. 5-192:
Compensation input characteristics when STF is ON
I002643E
STF
SD
4
5
AU
2 4
Forward
rotation
Inverter
Voltage/current
input switch
4 to 20 mA DC
Frequency
setting
Current
input
equipment
Connection diagram using
terminal 4 (4 to 20 mA DC)
STF
SD
2
5
2 4
Voltage/current
input switch
Connection diagram using
terminal 2 (4 to 20 mA DC)
Frequency
setting
Forward
rotation
4 to 20 mA DC
Inverter
Current
input
equipment
+5
(+10)
-5
(-10)
0
60
Reverse
rotation
Forward
rotation
Set frequency
(Hz)
Reversible
Not reversible
Terminal 1 input (V)