External Operation Mode (Operation Using The External Frequency Setting Potentiometer And External Start Signal) - Mitsubishi Electric FR-E 500 Instruction Manual

3.3.2 External operation mode (Operation using the external
frequency setting potentiometer and external start signal)
(1) Operation at 50Hz
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
51 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
50.00Hz.
Deceleration
Slowly turn the potentiometer connected across terminals
2-5 (frequency setting potentiometer) fully
4 counterclockwise.
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 86)
Description
56
Image
ON
RUN
A
PU EXT
Forward rotation
Reverse
rotation
Hz RUN
A MON
PU EXT
External potentiometer
External potentiometer
Forward rotation
Reverse
rotation
Stop
OFF