Frequency Setting By Analog Input (Terminal 1, 2, 4); Analog Input Selection (Pr. 73, Pr. 267) - Mitsubishi Electric FR-F720P-0.75K to 110K Instruction Manual

4.17 Frequency setting by analog input (terminal 1, 2, 4)

Purpose
Selection of voltage/current input
(terminal 1, 2, 4) Perform forward/
reverse rotation by analog input.
Adjust the main speed by analog
auxiliary input.
Noise elimination at the analog input
Adjustment (calibration) of analog
input frequency and voltage (current)

4.17.1 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
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 201)
(1) Selection of analog input selection
⋅ For the terminals 2, 4 used for analog input, voltage input (0 to 5V, 0 to 10V) or current input (4 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 Terminal input
ON
Voltage input
(Current input)
OFF
Current input
(Voltage input)
Parameter that must be Set
Analog input selection
Analog auxiliary input and
compensation (added compensation
and override function)
Input filter
Bias and gain of frequency setting
voltage (current)
Initial Setting
Voltage/current
Value Range
input switch
0 to 5,
Switch 2 - OFF
(initial status)
10 to 15
1
6, 7,
Switch 2 - ON
16, 17
Switch 1 - ON
0
(initial status)
0
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)
This could cause component damage to the analog signal output circuit of 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. (output
power in the analog signal output circuit of signal output devices increases)

Frequency setting by analog input (terminal 1, 2, 4)

Pr. 73, Pr. 267
Pr. 73, Pr. 242, Pr. 243,
Pr. 252, Pr. 253
Pr. 74
Pr. 125, Pr. 126, Pr. 241,
C2 to C7 (Pr. 902 to Pr. 905)
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 4 to 20mA
Terminal 4 input 1 to 5V
Terminal 4 input 2 to 10V
Operation
Refer to Page
185
191
192
193
4
185