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Mitsubishi Electric FR-F800 Series Instruction Manual page 353

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 Performing forward/reverse rotation with the analog input (polarity
reversible operation)
• Setting "10 to 17" in Pr.73 enables the polarity reversible operation.
• Set a positive or negative input (0 to ±5 V or 0 to ±10 V) to terminal 1 to allow the operation of forward/reverse rotation
according to the polarity of the input value.
Reverse
rotation
Reversible
Not reversible
-5
(-10)
Compensation input characteristics
Parameters referred to
Pr.22 Stall prevention operation
Pr.125 Terminal 2 frequency setting gain frequency, Pr.126 Terminal 4 frequency setting gain
Pr.252, Pr.253 Override
Pr.561 PTC thermistor protection
Pr.858 Terminal 4 function assignment, Pr.868 Terminal 1 function
5.9.2
Analog input terminal (terminal 1, 4) function
assignment
The analog input terminal 1 and terminal 4 functions are set and changeable with parameters.
Pr.
868
Terminal 1 function
T010
assignment
858
Terminal 4 function
T040
assignment
• The frequency (speed) command, stall prevention level, and auxiliary frequency setting are selectable for terminals 1 and
4 used for analog input.
The functions available are different depending on the settings in Pr.868 Terminal 1 function assignment and Pr.858
Terminal 4 function assignment as shown in the following table.
Setting value
0 (initial value) Auxiliary frequency setting
4
Stall prevention operation level input Stall prevention operation level input
9999
—: No function
*1
Invalid when Pr.868 = "4".
NOTE
• When Pr.868 = "4" (stall prevention), the terminal 4 function is enabled regardless of the ON/OFF state of the AU signal.
352
5. PARAMETERS
5.9 (T) Multi-function input terminal parameters
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Set frequency
Forward
(Hz)
rotation
60
+5
(+10)
0
Terminal 1 input (V)
when STF is ON
levelpage 290
bias/gainpage 353
levelpage 266
Name
Initial value
0
0
Terminal 1 function (Pr.868)
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assignmentpage 352
Setting range
Select the terminal 1 function. (Refer to the following
0, 4, 9999
table.)
Select the terminal 4 function. (Refer to the following
0, 4, 9999
table.)
Terminal 4 function (Pr.858)
Frequency command (AU signal-ON)
frequencypage 357
Description
*1

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