Analog Input Selection (Pr. 73, Pr. 267) - Mitsubishi Electric FR-A760 Series Instruction Manual

REMARKS
⋅ When "1 or 4" is set in both Pr. 868 and Pr. 858, terminal 1 is made valid and terminal 4 has no function.
⋅ When "1" (magnetic flux), "4" (stall prevention/torque limit) is set in Pr. 868, functions of terminal 4 become valid independently
of whether the AU terminal is on or off.
♦ Parameters referred to ♦
Advanced magnetic flux vector control
Real sensorless vector control
Pr. 804 Torque command source selection
Pr. 807 Speed limit selection
Pr. 810 Torque limit input method selection

4.21.2 Analog input selection (Pr. 73, Pr. 267)

You can select the function that switches between forward rotation and reverse rotation according to the analog
input terminal selection specifications, the override function and the input signal polarity.
Parameter
Name
Number
73 Analog input selection
267 Terminal 4 input selection
(1) 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.
Voltage/current
input switch
4 2
Switch 1
Switch 2
⋅ 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
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 could cause component damage. Incorrect settings other than below can cause abnormal
operation.
Setting Causing Component Damage
Switch setting
ON (Current input)
OFF (Voltage input)
Refer to page 134
Refer to page 78
Refer to page 111
Refer to page 113
Refer to page 86
Initial
Value
1
0
Terminal input
This could cause component damage to the analog signal output circuit of
Voltage input signal output devices.
(electrical load in the analog signal output circuit of signal output devices increases)
This could cause component damage of the inverter signal input circuit .
Current input
(output power in the analog signal output circuit of signal output devices increases)
Frequency/torque setting by analog
Setting
Voltage/current
Range
input switch
0 to 5,
Switch 2 - OFF
(initial status)
10 to 15
6, 7,
Switch 2 - ON
16, 17
Switch 1 - ON
0
(initial status)
1
Switch 1 - OFF
2
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
input (terminal 1, 2, 4)
Description
You can select the input specifications
of terminal 2 (0 to 5V, 0 to 10V, 0 to
20mA) and input specifications of
terminal 1 (0 to ±5V, 0 to ±10V).
Override and reversible operation can
be selected.
Terminal 4 input 0 to 20mA
Terminal 4 input 0 to 5V
Terminal 4 input 0 to 10V
4
271