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C21 Timer Operation
C21 enables or disables a timer operation that is triggered by a run command and continues
for the timer count previously specified with the
/
keys. The operating procedure for
the timer operation is given below.
Data for C21 Function
0 Disable timer operation
1 Enable timer operation
• Pressing the key during timer countdown quits the timer operation.
• Even if C21 = 1, setting the timer to 0 no longer starts the timer operation with the
key.
• Applying terminal command FWD or REV instead of the key command can also
start the timer operation.
Operating procedure for timer operation (example)
Preparation
• To display the timer count on the LED monitor, set E43 (LED Monitor) to "13" (Timer) and
C21 (Timer Operation) to "1" (Enable).
• Specify the reference frequency to apply to timer operation. When the keypad is selected as
a frequency command source, press the
key to shift to the speed monitor and specify the
desired reference frequency.
Triggering the timer operation with the
key
(1) While watching the timer count displayed on the LED monitor, press the
/ key to
set the timer for the desired count in seconds. Note that the timer count on the LED
monitor appears as an integral number without a decimal point.
(2) Press the
key. The motor starts running and the timer starts counting down. If the
timer counts down, the motor stops without pressing the
key. (Even if the LED
monitor displays any item except the timer count, the timer operation is possible.)
After the countdown of the timer operation triggered by a terminal command such
as FWD, the inverter decelerates to stop and at that moment the LED monitor
displays
end
and any LED monitor item (
0
for the timer count) alternately.
Turning FWD OFF returns to the LED monitor item.
C30 Frequency Command 2 F01 (Frequency Command 1)
For details of frequency command 2, refer to the description of F01.
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