C-4
■
Frequency setting
1)
Setting the operation frequency with an external volume control
By default, the VF-A7 inverter has been set to a mode in which an external volume
control can be used for setting the operation frequency.
:
[Parameter setting]
Speed setting mode selection parameter
at
.
(There is no need to set this parameter before the first use after purchase.
)
2)
Setting the frequency by voltage signals (0 to 10 V)
+
:
Voltage signal 0 to 10Vdc
−
[Parameter setting]
Speed setting mode selection parameter
at
.
(There is no need to set this parameter before the first use after purchase.
)
3)
Setting the frequency by a current signal (4 to 20 mA)
+
:
Current signal 4 to 20mAdc
−
[Parameter setting]
Speed setting mode selection parameter
at
.
This setting cannot be made when the terminal VI is used.
PP
CC
RR
II
CC
Frequency setting
with potentiometer
★
Volume control
The operation frequency by potentiometer (1 to
10k
Ω
1/4 W) for setting
Refer to 7.3 for details of adjustment.
MIN
MAX
Frequency
80Hz
0
MIN
MAX
80Hz
Frequency
0
4mAdc
20mAdc
★
Current signal
Current signals (4 to 20 mA) for setting the
operation frequency.
Refer to 7.3 for details of adjustment.
RR
CC
★
Voltage signal
Voltage signals (0 to 10 V) for setting t
he operation frequency
Refer to 7.3 for details of adjustment.
周波数
80Hz
0
0Vdc
10Vdc
Frequency