Mitsubishi Electric FR-A700 Instruction Manual page 552

Frequency inverter
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Frequency/torque setting by analog input (terminals 1, 2 and 4)
Selection of analog input specifications
For the terminals 2, 4 used for analog input, voltage input (0 to 5V, 0 to 10V) or current input (0
to 20mA) can be selected.
Change parameters (Pr.73, Pr.267) and a voltage/current input switch (switch 1, 2) to change
input specifications.
Switch 1
Switch 2
Abb. 6-175: Voltage/current input switches
Rated specifications of terminal 2 and 4 change according to the voltage/current input switch
setting.
● Voltage input: Input resistance 10kΩ ± 1kΩ, Maximum permissible voltage 20VDC
● Current input: Input resistance 245Ω ± 5Ω, Maximum permissible current 30mA
b
CAUTION:
Set Pr. 73, Pr. 267, and a voltage/current input switch correctly, then input an analog
signal in accordance with the setting. Incorrect setting as in the table below may result
in failure. Incorrect settings other than below can cause abnormal operation.
Setting Causing Failure
Switch setting
ON (Current input)
OFF (Voltage input)
6 - 372
Voltage/current
input switches
4
2
Terminal input
Voltage input
Current input
Switch 1:Terminal 4 input
ON: Current input (initial status)
OFF: Voltage input
Switch 2: Terminal 2 input
ON: Current input
OFF: Voltage input (initial status)
Operation
This could lead to damage to the analog signal output
circuit of external devices. (electrical load in the ana-
log signal output circuit of external devices increases)
This could lead to damage to the input circuit of the
inverter. (output power in the analog signal output cir-
cuit of external devices increases)
Parameter
I001609E

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