Mitsubishi Electronics FR-A500 ユーザーズマニュアル
107
4
4.2.30 Voltage input (Pr. 73)
Pr. 73 "0-5V/0-10V selection"
You can select the analog input terminal specifications, the override function and the function to switch
between forward and reverse rotation depending on the input signal polarity.
<Setting>
Parameter
Number
Factory Setting
Setting Range
73
1
0 to 5, 10 to 15
Pr. 73
Setting
Terminal AU
Signal
Terminal 2
Input Voltage
Terminal 1
Input Voltage
Terminal 4 Input, 4
to 20mA
Override Function
Polarity
Reversible
0
OFF
(No)
(No)
∗
0 to 10V
0 to ±10V
Invalid
×
No
(Note 3)
1
∗
0 to 5V
0 to ±10V
2
∗
0 to 10V
0 to ±5V
3
∗
0 to 5V
0 to ±5V
4
0 to 10V
∗
0 to ±10V
{
5
0 to 5V
∗
0 to ±5V
10
∗
0 to 10V
0 to ±10V
×
Valid
11
∗
0 to 5V
0 to ±10V
12
∗
0 to 10V
0 to ±5V
13
∗
0 to 5V
0 to ±5V
14
0 to 10V
∗
0 to ±10V
{
15
0 to 5V
∗
0 to ±5V
0
ON
(Yes)
Invalid
0 to ±10V
Yes
∗
×
No
(Note 3)
1
0 to ±10V
2
0 to ±5V
3
0 to ±5V
4
0 to 10V
Invalid
{
5
0 to 5V
10
Invalid
0 to ±10V
×
Valid
11
0 to ±10V
12
0 to ±5V
13
0 to ±5V
14
0 to 10V
Invalid
{
15
0 to 5V
Note: 1. The value of terminal 1 (frequency setting auxiliary input) is added to the main speed setting
signal of terminal 2 or 4.
2. When override has been selected, terminal 1 or 4 is for the main speed setting and terminal 2 is
for the override signal (50 to 150% at 0-5V or 0-10V). (If the main speed of terminal 1 or 4 is not
input, compensation made by terminal 2 is made invalid.)
3. Indicates that a negative-polarity frequency command signal is not accepted.
4. To change the maximum output frequency at the input of the maximum frequency command
voltage (current), use the frequency setting voltage (current) gain, Pr. 903 (Pr. 905). 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.
5. When the Pr. 22 setting is "9999", the value of terminal 1 is for the stall prevention operation level
setting.
6.
∗
indicates the main speed setting.
Related parameters
Pr. 22 "stall prevention operation level"
Pr. 903 "frequency setting voltage gain"
Pr. 905 "frequency setting current gain"
Pr. 903 "frequency setting voltage gain"
Pr. 905 "frequency setting current gain"