Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 477

• The power supply 5 V (10 V) can be input by either using the internal power supply or preparing an external power supply.
The internal power supply is 5 VDC output between terminals 10 and 5, and 10 VDC output between terminals 10E and 5.
Inverter internal power source
Terminal
10 5 VDC
10E 10 VDC
• To supply the 10 VDC input to terminal 2, set "0, 2, 4, 10, 12, or 14" in Pr.73. (The initial value is 0 to 5 V.)
• Set "1 (0 to 5 VDC)" or "2 (0 to 10 VDC)" in Pr.267 and turn OFF the voltage/current input selection switch to input voltage
through terminal 4. Turning ON the AU signal activates the terminal 4 input.
Forward
rotation
0 to 5 VDC
Frequency
setting
Connection diagram using
terminal 2 (0 to 5 VDC)
NOTE
• The wiring length of terminal 10, 2, and 5 should be 30 m at maximum.
 Running with analog input current
• For constant pressure or temperature control with fans, pumps, or other devices, automatic operation is available by setting
the regulator output signal 4 to 20 mADC to between terminals 4 and 5.
• To use terminal 4, the AU signal needs to be turned ON.
Forward
rotation
4 to 20mADC
Current
Frequency
input
setting
equipment
Connection diagram using
terminal 4 (4 to 20mADC)
• Set "6, 7, 16, or 17" in Pr.73 and turn ON the voltage/current input selection switch to input current through terminal 2. In
this case, the AU signal does not need to be turned ON.
Forward
rotation
4 to 20mADC
Current
Frequency
input
setting
equipment
Connection diagram using
terminal 2 (4 to 20mADC)
 Performing forward/reverse rotation with the analog input (polarity
reversible operation)
• Setting "10 to 17" in Pr.73 enables the polarity reversible operation.
476
5. PARAMETERS
5.12 (T) Multi-function input terminal parameters
voltage
Inverter
STF Forward
Voltage/current
rotation
SD
input switch
10
2 Frequency
setting
5
2 4
using terminal 2 (0 to 10 VDC)
Inverter
STF
AU Voltage/current
input switch
SD
4
5
2 4
Inverter
STF
Voltage/current
SD input switch
2
5
2 4
Frequency setting resolution
0.030/60 Hz
0.015/60 Hz
Inverter
STF
Voltage/current
input switch
SD
0 to 10 VDC
10E
2
5
2 4
Connection diagram
Pr.73 (terminal 2 input voltage)
0 to 5 VDC input
0 to 10 VDC input
Forward Inverter
STF
rotation
Voltage/current
AU
Terminal 4
input switch
input selection
SD
0 to 5 VDC
10
Frequency 4
setting 2
5
Connection diagram
using terminal 4 (0 to 5 VDC)
4