Mitsubishi Electric FR-A720-0.4K Instruction Manual page 285

⋅ Refer to the following table and set Pr. 73 and Pr. 267. (
Pr. 73 Terminal 2
Setting Input
0 0 to 10V
1 (initial value) 0 to to 5V
2 0 to 10V
3 0 to 5V
4 0 to 10V
5 0 to 5V
6 4 to 20mA
7 4 to 20mA
10 0 to 10V
11 0 to 5V
12 0 to 10V
13 0 to 5V
14 0 to 10V
15 0 to 5V
16 4 to 20mA
17 4 to 20mA
0
1 (initial value)
×
2
3
4 0 to 10V
5 0 to 5V
6
×
7
10
11
×
12
13
14 0 to 10V
15 0 to 5V
16
×
17
CAUTION
⋅ The terminal 1 (frequency setting auxiliary input) signal is added to the main speed setting signal of the terminal 2 or 4.
⋅ When an override is selected, the terminal 1 or 4 is used for the main speed setting and the terminal 2 for the override signal
(50% to 150% at 0 to 5V or 0 to 10V). (When the main speed of the terminal 1 or terminal 4 is not input, compensation by the
terminal 2 is made invalid.))
⋅ Use Pr. 125 (Pr. 126) (frequency setting gain) to change the maximum output frequency at input of the maximum output frequency
command voltage (current). At this time, the command voltage (current) need not be input.
Also, the acceleration/deceleration time, which is a slope up/down to the acceleration/deceleration reference frequency, is not
affected by the change in Pr. 73 setting.
⋅ When Pr. 858 Terminal 4 function assignment, Pr. 868 Terminal 1 function assignment = "4", the value of the terminal 1 or terminal 4 is as
set to the stall prevention operation level. When terminal 1 and terminal 4 are used for frequency setting, set "0" (initial value) in Pr.
858 and Pr. 868.
Terminal 1 Terminal 4
Input Input
0 to ±10V
0 to ±10V
0 to ±5V
0 to ±5V
0 to ±10V
0 to ±5V
0 to ±10V
When the AU
0 to ±5V
signal is off
0 to ±10V
×
0 to ±10V
0 to ±5V
0 to ±5V
0 to ±10V
0 to ±5V
0 to ±10V
0 to ±5V
0 to ±10V
0 to ±10V
0 to ±5V
0 to ±5V
According to
×
Pr. 267 setting
0 to ±10V
when the AU
0 to ±5V
signal is on
0 to ±10V
0: 4 to 20mA
0 to ±10V (initial value)
1: 0 to 5V
0 to ±5V
2: 0 to 10V
0 to ±5V
×
0 to ±10V
0 to ±5V
Frequency/torque setting by analog
indicates the main speed setting)
Compensation Input
Pr. 73 Terminal and
Setting Compensation
Method
0
1 (initial value)
Terminal 1
Added compensation
2
3
4
Terminal 2
Override
5
6
7
10
Terminal 1
Added compensation
11
12
13
14
Terminal 2
Override
15
16
Terminal 1
Added compensation
17
0
1 (initial value)
Terminal 1
Added compensation
2
3
4 Terminal 2
Override
5
6
7
10 Terminal 1
Added compensation
11
12
13
14 Terminal 2
15 Override
16
Terminal 1
Added compensation
17
input (terminal 1, 2, 4)
Polarity
Reversible
No
(Indicates that
a frequency
command
signal of
negative
polarity is not
accepted.)
Yes
No
(Indicates that
a frequency
command
signal of
negative
polarity is not
accepted.)
Yes
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