3.3.2 External operation mode (Operation using the external
frequency setting potentiometer and external start signal)
( 1 ) Operation at 60Hz
Operation command: Externally connected start signal.
Frequency setting: Externally connected frequency setting potentiometer
Power on → Operation mode check
With the factory setting, the external operation mode is
selected and the [EXT] indication is lit when power is
switched on. If the [EXT] indication is not lit, refer to page
55 and set "2" in Pr. 79.
Set the start switch (STF or STR) to ON.
The [RUN] indication is lit to indicate forward rotation, or
flickers to indicate reverse rotation.
Note: The motor does not start if both the forward
and reverse rotation switches are turned on. If
both switches are turned on during operation,
the motor decelerates to a stop.
Acceleration → Constant speed
Slowly turn the potentiometer connected across terminals
2-5 (frequency setting potentiometer) fully clockwise.
The frequency shown on the display increases gradually to
S low ly turn the potentiom eter connected across term inals 2-5
(frequency setting potentiom eter) fully counterclockw ise.
The frequency shown on the display decreases gradually
The motor stops running.
Turn off the start switch (STF or STR).
<Reference> If other frequency is required at fully clockwise position, change Pr. 38
"Frequency at 5V (10V)" setting.