Mitsubishi Electric FR-E700 Instruction Manual page 318
Frequency inverter
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- Instruction manual (608 pages) ,
- Basic instruction manual (149 pages) ,
- Installation manuallines (38 pages)
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Frequency setting by analog input (terminal 2, 4)
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 0/4 to 20mA of the adjuster to across
the terminals 4-5.
The AU signal must be turned on to use the terminal 4.
Forward rotation
Frequency
Perform forward/reverse rotation by analog input (polarity reversible operation)
Setting "10" or "11" in Pr. 73 and adjusting Pr. 125 (Pr. 126) "Terminal 2 frequency setting gain
frequency" (Terminal 4 frequency setting gain frequency) and C2 (Pr. 902) "Terminal 2
frequency setting bias frequency" to C7 (Pr.905) "Terminal 4 frequency setting gain" makes
reverse operation by terminal 2 (terminal 4) valid.
Example
When performing reversible operation by terminal 2 (0 to 5V) input.
Set "11" in Pr. 73 to make reversible operation valid.
Set frequency at maximum analog input in Pr. 125 (Pr. 903).
Set 1/2 of the value set in C4 (Pr. 903) in C3 (Pr. 902).
Reversible operation is performed when 0 to 2.5V DC is input and forward rotation when
2.5 to 5V DC.
Set frequency [Hz]
Not reversible
m
CAUTION:
When reversible operation is set, be aware of reverse rotation operation when analog
input stops (only the start signal is input).
NOTE
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.
6 - 178
0/4–20mA DC
Current
input
setting
equipment
Connection diagram
using terminal 4 (0/4–20mA DC)
Forward
Reverse
rotation
rotation
Reversible
Fig. 6-92:
Frequency setting by the function "Current
input 0/4–20mA" assigned to terminal 4
Terminal 2 input [V]
Parameter
I001184E
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