5-42
C21 Timer Operation
Enables or disables timer operation. If it is enabled, entering a run command will run
the inverter to drive the motor for the period preset to the timer.
An example of timer operation
• Setting up the timer conditions beforehand
- Set C21 to 1 to enable timer operation.
- To have the timer count displayed on the LED monitor at the time of power on, set
function code E43 (LED monitor display selection) to "13" (Timer count).
- Set up the frequency for the timer operation using the built-in potentiometer or
the
and keys. If the LED displays the timer count, press the key to
switch it to the speed monitor and then set the frequency for the timer operation.
• Timer operation (by giving a run command with the
key)
1) Use the
or key to set the timer count (in seconds) while monitoring the
current count displayed on the LED monitor. Note that the timer count is ex-
pressed as integers.
Valid range of Timer Operation time: 1 – 9,999 (sec)
2) Press the
key to run the motor, and the timer will start the countdown. The
moment the timer finishes the countdown, the inverter stops running the motor
even if the
key is not pressed. (Timer operation is possible even when the
timer count is not displayed on the LED monitor.)
3) After the inverter decelerates the motor to a stop, the timer count on the LED
monitor will blink.
If timer operation started by the terminal command FWD is finished and
the inverter decelerates the motor to a stop, then the LED monitor displays
end
and the monitor indication (
0
if the timer count is selected) alter-
nately. Turning FWD off will switch the LED back to the monitor indication.
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