Mitsubishi Electric FR-A820-00046 Instruction Manual page 609

Parameters
Analog input specification selection
● Concerning the terminals 2 and 4 used for analog input, the voltage input (0 to 5 V, 0 to 10 V) and
current input (0 to 20 mA) are selectable. To change the input specification, change the parame-
ters (Pr. 73, Pr. 267) and voltage/current input switch settings (switches 1, 2).
Voltage/current
input switch
Fig. 5-190:
● The terminal 2/4 rating specifications change depending on the voltage/current input switch
settings.
Voltage input: input resistance 10 kΩ ± 1 kΩ, permissible maximum voltage 20 V DC
Current input: input resistance 245 Ω ± 5 Ω, permissible maximum current 30 mA
● Correctly set Pr. 73, Pr. 267 and voltage/current input switch settings so that the analog signal
appropriate for the settings is input. The incorrect settings shown in the table below cause a
failure. Other incorrect settings result in an incorrect operation.
Setting causing a failure
Switch setting
ON (current input)
OFF (Voltage
input)
Tab. 5-152: Switch settings causing a failure
NOTE Check the voltage/current input switch number indication before setting, because it is different
from the FR-A700 series switch number indication.
FR-A800
Switch 2
Switch 1
2 4
Voltage/current input switches
Operation
Terminal
input
Causes an analog signal output circuit failure in an external device
Voltage input
(due to increased loads on the signal output circuit of the external device).
Causes an input circuit failure in the inverter
Current input
(due to an increased output power in the analog signal output circuit of an external
device).
(T) Multi-Function Input Terminal Parameters
Switch 1: Terminal 2 input
ON: Current input
OFF: Voltage input (initial status)
Switch 2: Terminal 4 input
ON: Current input (initial status)
OFF: Voltage input
I002637E
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