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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
Step
Power on → Operation mode check
With the factory setting, the external operation mode is
selected and the [EXT] indication is lit when power is
1
switched on. If the [EXT] indication is not lit, refer to page
54 and set "2" in Pr. 79.
Start
Set the start switch (STF or STR) to ON.
The [RUN] indication is lit to indicate forward rotation, or
flickers to indicate reverse rotation.
2
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.
3
The frequency shown on the display increases gradually to
60.00Hz.
Deceleration
Slowly turn the potentiometer connected across terminals 2-5
(frequency setting potentiometer) fully counterclockwise.
4
The frequency shown on the display decreases gradually
to 0.00Hz.
The motor stops running.
Stop
Turn off the start switch (STF or STR).
5
<Reference> If other frequency is required at fully clockwise position, change Pr. 38
"Frequency at 5V (10V)" setting.
(Refer to page 160)
Description
59
Image
ON
EXT
Forward rotation
Reverse
rotation
Hz RUN
MON
EXT
External potentiometer
External potentiometer
Forward rotation
Reverse
rotation
Stop
OFF
3
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