Frequency Setting - Toshiba TOSVERT VF-A7 Instruction Manual

Frequency setting

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.
Setting the frequency by voltage signals (0 to 10 V)
[Parameter setting]
Speed setting mode selection parameter  at
(There is no need to set this parameter before the first use after purchase.
Setting the frequency by a current signal (4 to 20 mA)
[Parameter setting]
Speed setting mode selection parameter  at .
This setting cannot be made when the terminal VI is used.
Frequency setting
with potentiometer
Voltage signal 0 to 10Vdc
Current signal 4 to 20mAdc
C-4
Volume control
The operation frequency by potentiometer (1 to
10k 1/4 W) for setting
Refer to 7.3 for details of adjustment.
80Hz
Frequency
MIN
Voltage signal
Voltage signals (0 to 10 V) for setting t
he operation frequency
Refer to 7.3 for details of adjustment.
80Hz
Frequency
0
0Vdc
.
Current signal
Current signals (4 to 20 mA) for setting the
operation frequency.
Refer to 7.3 for details of adjustment.
80Hz
Frequency
0
4mAdc
MAX
10Vdc
20mAdc