25
O
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Operation
Inverter operation
See below for the basic operation of the VF-nC3M transistor inverter with default setting. See manufacturer's
manual for other programming including external frequency control.
■ Start/Stop of operation
Use the RUN key to start and the STOP key to stop the motor.
■
Flow rate adjustment
This pump does not have a stroke length knob that general metering pumps have for adjusting a flow rate. The
TD changes a flow rate with the inverter, controlling a motor speed.
NOTE
Observe the allowable control frequency range at each model, or the IPM motor may break. Note that the
following data is based on operation at the maximum discharge pressure (see page 48).
TD-01/-03/-05/-1/-2/-4: 6-60Hz
TD-6/-8: 10-60Hz
Turn the frequency dial clockwise to increase and anticlockwise to decrease Hz and a
flow rate.
Operation
Drive frequency
Details
Power is turned ON
0.0Hz
The dial is turned
to 60Hz
A flow rate is changed to 60.0Hz.
Power is turned OFF
The drive frequency is stored after the inverter is
turned off.
Frequency display
STOP key
RUN key
Frequency dial
1