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3-3
Trial Run
The motor rotates when a frequency value and running command are input from the keypad
panel or external signal terminal. Refer to Table 3-3-1.
Use a low frequency (about 5Hz) for trial runs
A frequency can be set using the built-in frequency setting POT (VR) , and forward/stop
can be performed using the keypad panel with the functions set in the factory.
Table 3-3-1 Running command
Operation method
Frequency setting
Running command
Operation by using
keypad panel
Operation starts when the
RUN key is pressed.
The motor decelerates and
stops when the STOP key is
pressed.
Operation by using
external signal ter-
minal
(When built-in POT (VR) is used)
The frequency increases when the variable
resistor is turned clockwise and reduces
when it is turned counterclockwise. The mo-
tor accelerates when the variable resistor is
turned clockwise during operation and de-
celerates when it is turned counterclockwise.
(When the UP/DOWN key is used)
Frequency increases when the UP key is
pressed.
It reduces when the DOWN key is pressed.
Operation starts when FWD
(REV) terminal is connected.
The motor decelerates and
stops when the FWD (REV)
terminal is disconnected.
* Operation is not stopped
although the STOP key is
pressed. (When the data of
F02 is set to “2” or “4”)
Check the following items:
a) Rotation direction
b) Whether rotation is smooth (whether there is a motor buzzing noise or abnormal vibration)
c) Whether acceleration and deceleration are smooth
d) Whether the drive cooling fan is rotating (1.5kW or more)
If no abnormality is detected, check the item again by increasing the frequency.
Even if the output from the drive is stopped, you will be get an electric shock when you touch the main
circuit terminals such as drive output terminals U, V and W if the voltage is supplied to the main power
supply input terminal.
The smoothing capacitor in the drive has been charged when the power is turned off and it is not dis-
charged immediately. Before touching the electric circuit, wait until at least five minutes have elapsed
after power-off and the charge lump is off, indicating the voltage is already low.
After checking normality in the above trial run, start operation.
