3.3 Running Mode
3-9
OPERATION USING THE KEYPAD
Chap 3
3.3.4 Setting up reference frequency from the keypad
You can set up the desired reference frequency with the and keys on the keypad. It is also possible to set up
the reference frequency as load shaft speed, motor speed or speed (%) by setting function code E48.
Using the keypad (F01 = 0 (factory default) or 8)
(1) Set function code F01 to “0” (Keypad operation using /
keys) or “8” (Keypad operation using /
keys, balanceless-bumpless). Frequency setting with the keypad is disabled in Programming or Alarm mode.
To enable it, switch to Running mode.
(2) Press the / key to display the current reference frequency. The lowest digit blinks.
(3) To change the reference frequency, press the / key again. The new setting can be saved into the
inverter’s internal memory.
Holding down the / key changes data in the least significant digit and generates a carry.
The reference frequency can
be saved either automatically by turning the main power OFF or only by
pressing the
key. You can choose either way using function code E64. The factory default is “0
(Automatic saving when main power is turned OFF).
To set the reference frequency, first press the key once to blink the least significant digit.
each time the key is pressed, the cursor moves to the next higher digit where data can be changed
.
This cursor movement allows you to easily move the cursor to the desired digit and change the data in
If you have set function code F01 to “0” or “8” but have selected a frequency setting 1
frequency command 1 (i.e., frequency command 2, frequency command via communic
multistep frequency command), then the and
keys are disabled to change the current
frequency command even in Running
mode. Pressing either of these keys just displays the current
Setting F01 data to “8” (Keypad operation using /
keys, balanceles-bumpless
balanceless-bumpless switching.
Balanceless-bumpless switching refers to the function that
makes the inverter inherit the current
frequency that has applied before the frequency
command source is switched to the keypad from any
other source, providing smooth switching and shockless running.