Mitsubishi Electronics FR-A700 ユーザーズマニュアル
289
Frequency/torque setting by analog
input (terminal 1, 2, 4)
4
(3) 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 to 20mADC of the adjuster to across the terminals 4 and 5.
0 to 20mADC of the adjuster to across the terminals 4 and 5.
⋅ The AU signal must be turned ON to use the terminal 4.
⋅ Setting any of "6, 7, 16, 17" in Pr. 73 and a voltage/current input switch in
the ON position changes the terminal 2 to the current input specification.
At this time, the AU signal need not be turned ON.
At this time, the AU signal need not be turned ON.
Compensation input characteristic
when STF is on
(4) Perform forward/reverse rotation by analog input
(polarity reversible operation)
⋅ 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
⋅ Providing ± input (0 to ±5V or 0 to ±10V) to the terminal 1 enables
forward/reverse rotation operation according to the polarity.
♦ Parameters referred to ♦
Pr. 22 Stall prevention operation level
Refer to page 152
Pr. 125 Terminal 2 frequency setting gain frequency, Pr. 126 Terminal 4 frequency setting gain frequency
Refer to page 294
Pr. 252, Pr. 253 Override bias/gain
Refer to page 290
Pr. 858 Terminal 4 function assignment, Pr. 868 Terminal 1 function assignment
Refer to page 285
STF
Inverter
Forward
rotation
rotation
Frequency
setting
setting
4
5
AU
Connection diagram using
terminal 4 (4 to 20mADC)
4 to 20mADC
Current
input
equipment
Voltage/current
input switch
input switch
SD
STF
2
5
2
4
Forward
rotation
rotation
Frequency
setting
setting
Current
input
equipment
Inverter
Voltage/current
input switch
input switch
Connection diagram using
terminal 2 (4 to 20mADC)
4 to 20mADC
SD
Forward
rotation
rotation
Reverse
rotation
rotation
Terminal 1 input (V)
+5
(+10)
(+10)
-5
(-10)
0
60
Set frequency
(Hz)
(Hz)
Reversible
Not reversible