5.3 Description of Function Codes 5.3.3 C codes (Control functions)
To run or stop, use input from the key of the keypad or by switching the control terminal. Taking the keypad
as an example, the motor starts running when the key is pressed. By pressing the key, stage advance
is paused. Press the key again to resume operation according to the stages from the point where it was
suspended. For alarm stop, press the key to reset the inverter protective functions. Then press the key.
The suspended progression of the cycle resumes. If a need arises for operation from the first stage “C22 (Stage
1 runtime)” and “C82 (Stage 1 rotational direction and acceleration/deceleration time)” during operation, input a
stop command and press the key.
When operation from the first stage is necessary after an alarm stop, press the key for resetting the
protective functions and press the key again. For operation with input terminals, use of the “RST” terminal
(set “8 (Active ON)” or “1008 (Active OFF)” for any of E01 to E09) function the same way.
• Pattern operation can be started by either a forward run command (specify F02 = 2 and press the
key, or specify F02 = 1 and turn the terminal [FWD] ON) or reverse run command (specify F02 = 3 and
press the key, or specify F02 = 1 and turn the terminal [REV] ON).
• When using terminal [FWD] or terminal [REV], the run command self-hold function does not work.
Please use the alternate-type switch.
When pattern operation is started by specifying C21 = 0 and turning the terminal [FWD (REV)] ON, the motor
stops after the completion of the last stage even if the terminal [FWD (REV)] is kept turned ON.
In this case, modifying the value for F01 or C30 or switching the control terminal “Hz2/Hz1” ON/OFF without
turning the FWD (REV) terminal OFF causes the operation to be immediately resumed according to the reference
frequency after the change.
Failure to observe this could result in an accident or injury.
Timed operation (C21 = 3)
Select this for timed operation, in which simply specifying the run time and inputting a run command starts motor
operation and stops the operation after the specified period has elapsed.
• To stop the timed operation, press the key during timer countdown.
• When the timer period is 0, pressing the key does not start operation if C21 = 3.
• An external signal (FWD or REV) can also be used to start operation.
Example of timed operation
Preconfiguration
• To indicate the timer value on the LED monitor, set the data for E43 (LED monitor) to “13” (timer vaule) and data
for C21 to “3.”
• Specify the reference frequency for timed operation. When the reference frequency is specified by keypad
operation and the timer value is indicated, press the key to switch to speed monitor display and modify the
reference frequency.
Timed operation (to start operation with the key)
(1) While checking the timer value on the LED monitor, press the / key to specify the timer period (in
seconds). (The timer value is indicated as an integer without a decimal point on the LED monitor.)
(2) Press the key to start motor operation. The timer period counts counted down. After the timer period has
elapsed, the operation stops without the need for pressing the key. (Timed operation is possible even
when the LED monitor indication is not the timer value.)
For operation by turning the FWD terminal ON, the indication alternates between “end” and LED monitor
display (0 for timer value) when the timed operation has been completed with deceleration to stop. Turning
FWD OFF brings back the LED monitor display.
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