Mitsubishi Electric 800 Series Instruction Manual page 397

(T) Multi-Function Input Terminal Parameters
Forward
rotation
4 to 20 mADC
Current
Frequency
input
setting
equipment
Connection diagram using
terminal 4 (4 to 20 mADC)
Forward
rotation
4 to 20 mADC
Current
Frequency
input
setting
equipment
Connection diagram using
terminal 2 (4 to 20 mADC)
Reverse
Set frequency
(Hz)
rotation
60
Reversible
Not reversible
-5 0 Terminal 1 input (V)
(-10)
Compensation input characteristics
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.561 PTC thermistor protection level
Pr.858 Terminal 4 function assignment, Pr.868 Terminal 1 function assignment
396
PARAMETERS
To run with an analog input current
Inverter
• For constant pressure or temperature control with fans, pumps, or other
STF
AU Voltage/current
devices, automatic operation is available by setting the regulator output signal
input switch
SD
4 to 20 mADC to between terminals 4 and 5.
• To use the terminal 4, the AU signal needs to be turned ON.
4
5
2 4
• Setting "6, 7, 16, or 17" in Pr.73 and turning the voltage/current input switches
Inverter
ON sets terminal 2 to the current input specification. Concerning the settings,
STF
Voltage/current the AU signal does not need to be turned ON.
SD input switch
2
5
2 4
To perform forward/reverse rotation with the
analog input (polarity reversible operation)
Forward
rotation
• 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
(+10)
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page 397