Mitsubishi Electric FR-E700EX Instruction Manual page 172

Speed setting by analog input (terminal 2, 4)
Forward rotation
4 to 20mADC
Current input
Speed setting
equipment
Connection diagram using terminal 4 (4 to 20mADC)
Reverse Forward
rotation
rotation
Pr.125
Reversible
Not
reversible
C2(Pr.902)
0 2.5V
C3(Pr.902)
Speed setting signal
Reversible operation example
NOTE
 When reversible operation is set, be aware of reverse rotation operation when analog input stops (only the start
signal is input).
 When reversible operation is valid, reversible operation (0 to 4mA: reverse operation, 4mA to 20mA: forward
operation) is performed by terminal 4 in the initial setting.
 Under position control, operation by analog inputs is unavailable.
Parameters referred to
Pr.125 Terminal 2 speed setting gain speed, Pr.126 Terminal 4 speed setting gain speed
C2(Pr.902) Terminal 2 speed setting bias speed to C7(Pr.905) Terminal 4 speed setting gain
170
(3)
Drive unit
 Operation can be performed by inputting the output signal 4 to
STF
AU
 The AU signal must be turned ON to use the terminal 4.
SD
4
5
(4)
 Setting "10" or "11" in Pr.73 and adjusting Pr.125 (Pr.126) Terminal 2
Terminal 2
Example) When performing reversible operation by terminal 2 (0 to 5V)
input (V)
5V
C4(Pr.903)
Perform operation by analog input selection
20mADC of the adjuster to across the terminals 4-5.
Perform forward/reverse rotation by analog input
(polarity reversible operation)
speed setting gain speed (Terminal 4 speed setting gain speed) and C2
(Pr.902) Terminal 2 speed setting bias speed to C7 (Pr.905) Terminal 4
speed setting gain makes reverse operation by terminal 2 (terminal 4)
valid.
input
1) Set "11" in Pr.73 to make reversible operation valid.
Set speed at maximum analog input in Pr.125 (Pr.903)
2) Set 1/2 of the value set in C4 (Pr.903) in C3 (Pr.902).
3) Reversible operation is performed when 0 to 2.5VDC is input and
forward rotation when 2.5 to 5VDC.
Refer to page 173
Refer to page 173