Mitsubishi Electric 800 Series Instruction Manual page 276

 Analog input specification selection
• For 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 setting of Pr.73 (Pr.267) and the voltage/current input selection
switch (switch 2 or switch 4).
Voltage/current
input switch
Switch 2
Switch 4
Voltage/current
input switch
Switch 2
Switch 4
Switch state Input specification
I Current input
Switch 2
V Voltage input (initial status)
I Current input (initial status)
Switch 4
V Voltage input
• Change the setting of the voltage/current input selection switch to change the rated specification of terminal 2 or 4.
• Set Pr.73 (Pr.267) and the voltage/current input selection switch according to the analog signal input. The incorrect
settings shown in the following table cause a failure. The inverter does not operate properly with other incorrect settings.
Setting causing a failure
Switch setting Terminal input
I (current input) Voltage input
V (voltage input) Current input
Set Pr.73 and the voltage/current input selection switch according to the following table.
Pr.73 setting Terminal 2 input
0 0 to 10 V
1 (initial value) 0 to 5 V
6 0 to 20 mA
10 0 to 10 V
11 0 to 5 V
16 0 to 20 mA
• When the Terminal 4 input selection (AU) signal is turned ON, terminal 4 is used to set the main speed. In this case,
terminal 2 is not used to set the main speed.
Standard model
Switch 2
Switch 4
Safety communication model
Input
terminal
For voltage input, the input resistance is 10±1 kΩ and the
Terminal 2
maximum permissible voltage is 20 VDC.
For current input, the input resistance is 245±5 Ω and the
Terminal 4
maximum permissible current is 30 mA.
Causes an analog signal output circuit failure in an external device (due to increased loads on the
signal output circuit of the external device).
Causes an input circuit failure in the inverter (due to an increased output power in the analog signal
output circuit of an external device).
Switch 2 Reversible operation
V
V Disabled
I
V
V Enabled
I
Voltage/current
input switch
Ethernet model
Rated specification
Operation
12.(T) Multi-Function Input Terminal Parameters
275
12.1 Analog input selection
11
12
13
14
15
16
17
18
19
20