Mitsubishi Electric 800 Series Instruction Manual page 322

 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.
Forward STF
rotation
AU
SD
4 to 20 mADC
Current 4
Frequency
input
setting
equipment
5
Connection diagram using
terminal 4 (4 to 20 mADC)
• 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.
Forward STF
rotation
SD
4 to 20 mADC
Current 2
Frequency
input
setting
equipment
5
Connection diagram using
terminal 2 (4 to 20 mADC)
 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.
Reverse
Set frequency
Forward
(Hz)
rotation
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
Inverter
Voltage/current
input switch
2 4
Inverter
Voltage/current
input switch
2 4
+5
(+10)
page 257
page 323
page 230
page 322
5. PARAMETERS
5.9 (T) Multi-Function Input Terminal Parameters
3
4
5
5
5
6
7
8
9
10
page 328
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