Mitsubishi Electric FR-F740-00023 Instruction Manual page 167

Frequency setting by analog input (terminal 1, 2, 4)
Forward
STF
rotation
PC
0 to 5VDC
10
Frequency
2
setting
5
Connection diagram using
terminal 2 (0 to 5VDC)
Forward STF
rotation
PC
0 to 10VDC
10E
Frequency 2
setting
5
Connection diagram
using terminal 2 (0 to 10VDC)
Forward
rotation
STF
Terminal 4
AU
input selection
PC
DC0 to 5V
10
Frequency
4
setting
5
Connection diagram
using terminal 4 (0 to 5VDC)
Forward
rotation
4 to 20mADC
Current
Frequency
input
setting
equipment
Connection diagram using
terminal 4 (4 to 20mADC)
Forward
rotation
4 to 20mADC
Current
Frequency
input
setting equipment
Connection diagram using
terminal 2 (4 to 20mADC)
158
(2) Perform operation by analog input voltage
Inverter
The frequency setting signal inputs 0 to 5VDC (or 0 to 10VDC) to across
Voltage/current the terminals 2-5. The 5V (10V) input is the maximum output frequency.
input switch
The maximum output frequency is reached when 5V (10V) is input.
4 2
The power supply 5V (10V) can be input by either using the internal
power supply or preparing an external power supply. The internal power
supply outputs 5VDC across terminals 10-5, or 10V across terminals
10E-5.
Terminal
Inverter
10
Voltage/current
10E
input switch
4 2
When inputting 10VDC to the terminal 2, set any of "0, 2, 4, 10, 12, 14"
in Pr. 73. (The initial value is 0 to 5V)
Setting "1 (0 to 5VDC)" or "2 (0 to 10VDC)" in Pr. 267 changes the
terminal 4 to the voltage input specification. When the AU signal turns
Inverter
on, the terminal 4 input becomes valid.
Voltage/current
input switch
REMARKS
4 2
The wiring length of the terminal 10, 2, 5 should be 30m maximum.
(3) Perform operation by analog input current
Inverter
When the pressure or temperature is controlled constant by a fan, pump,
STF
etc., automatic operation can be performed by inputting the output signal
Voltage/current
AU
4 to 20mADC of the adjuster to across the terminals 4-5.
input switch
PC
4 2 The AU signal must be turned on to use the terminal 4.
4
5
Setting any of "6, 7, 16, 17" in Pr. 73 changes the terminal 2 to the
Inverter
current input specification. At this time, the AU signal need not be turned
STF
Voltage/current
on.
input switch
PC
4 2
2
5
Inverter Built-in Power Frequency Setting
Supply Voltage
5VDC
10VDC
Pr. 73 (terminal 2
Resolution input voltage)
0.024/50Hz 0 to 5VDC input
0.012/50Hz 0 to 10VDC input