Mitsubishi Electric FR-CS84-012 Instruction Manual page 133

 Analog input specification selection
• For terminal 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
Current input (initial setting)
Voltage input
Switch state Input specification
Current input (initial
I
status)
Switch
V Voltage input
• Change the setting of the voltage/current input selection switch to change the rated specification of terminal 4.
• Set
Pr.73 (Pr.267)
shown in the following table cause a failure. The inverter does not operate properly with other incorrect settings.
Setting causing a failure
Switch setting
I (Current input) Voltage input
V (Voltage input) Current input
Set and the voltage/current input selection switch according to the following table.
Pr.73
Pr.73 setting Terminal 2 input
0
0 to 10 V
1 (initial value)
0 to 5 V
10
0 to 10 V
11
0 to 5 V
*1 The main speed setting is indicated.
• When the Terminal 4 input selection (AU) signal is turned ON, terminal 4 is used to set the speed. In this case, terminal 2
is not used to set the speed.
• Set and the voltage/current input selection switch according to the following table.
Pr.267
Pr.267 setting Terminal 4 input
0 (initial value) 4 to 20 mA
1 0 to 5 V
2 0 to 10 V
132
5. PARAMETERS
5.8 (T) Multi-function input terminal parameters
Input
terminal
Terminal 4
and the voltage/current input selection switch according to the analog signal input. The incorrect settings
Terminal
input
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 1
*1 OFF
Not applied (state in which a negative polarity
frequency command signal is not accepted)
*1 OFF
*1
OFF
Applied
*1
OFF
Switch 2
I
V
V
and the voltage/current input selection switch.
Pr.73 (Pr.267)
Rated specification
For voltage input, the input resistance is 10±1 kΩ and the
maximum permissible voltage is 20 VDC.
For current input, the input resistance is 249 Ω (±5 Ω) and the
maximum permissible current is 30 mA.
Operation
Reversible polarity