Mitsubishi Electric FR-A720-0.4K Instruction Manual page 299

Frequency/torque setting by analog
input (terminal 1, 2, 4)
Inverter
Forward
STF
rotation
SD
0 to 5VDC
10
Frequency
2
setting
5
Connection diagram using
terminal 2 (0 to 5VDC)
Forward STF
rotation
SD
0 to 10VDC
10E
Frequency
2
setting
5
Connection diagram
using terminal 2 (0 to 10VDC)
Forward
rotation
STF
Terminal 4 AU
input selection
SD
DC0 to 5V
10
Frequency
4
setting
5
Connection diagram
using terminal 4 (0 to 5VDC)
288
(2) Perform operation by analog input voltage
⋅ The frequency setting signal inputs 0 to 5VDC (or 0 to 10VDC) to across
Voltage/current
the terminals 2 and 5. The 5V (10V) input is the maximum output
input switch
frequency. The maximum output frequency is reached when 5V (10V) is
input.
⋅ 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 and 5, or 10V across terminals
10E and 5.
Terminal
Inverter
Voltage/current
10
input switch
10E
⋅ 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 and a voltage/
current input switch in the OFF position changes the terminal 4 to the
voltage input specification. When the AU signal turns ON, the terminal 4
input becomes valid.
Inverter
Voltage/current REMARKS
input switch
The wiring length of the terminal 10, 2, 5 should be 30m maximum.
Inverter Built-in Power Frequency Setting
Supply Voltage
5VDC 0.030Hz/60Hz
10VDC 0.015Hz/60Hz
Pr. 73 (terminal 2
Resolution input voltage)
0 to 5VDC input
0 to 10VDC input