3.3 Running Mode
3-10
• In order to perform setting such as reference frequency, press / once and when the least
significant digit flashes, push down the key, and then, the flashing digit will move. Therefore, it is
possible to change the large numerical number easily.
• 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)).
• While the function code F01 data is set to “0” or “8”, when a setting method other than frequency
setting 1 (frequency setting 2, communication, multistep frequency, etc.) is selected as the frequency
setting, it is not possible to change the reference setting with the / keys even if the keypad is
in running mode. In this case, display “3.3.10 Display when keypad operation disabled (command
source display)” for 2 seconds.
• By setting function code F01 data to “8: Keypad operation using / keys (with
balanceless/bumpless)” balanceless/bumpless is enabled.
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. By using this function, even if the
frequency setting method is switched, it is possible to perform operation without shock.
3.3.6 Setting PID commands with the keypad
PID commands can be set with the and keys on the keypad.
[ 1 ] Settings under PID process control
To enable the PID process control, you need to set the J01 data to “1” or “2.”
Under the PID control, the items that can be specified or checked with and keys are different from those
under regular frequency control, depending upon the current LED monitor setting. If the LED monitor is set to the
speed monitor (E43 = 0), the item accessible is a manual speed command (reference frequency); if it is set to any
other, the item is a PID process command.
Setting the PID process command with and keys
(1) Set function code J02 to “0” ( / keys on keypad).
(2) Set the LED monitor to other than the speed monitor (E43=0) in keypad Running mode. When the keypad is
in Programming or Alarm mode, you cannot modify the PID process command with the / key. To make
it possible for PID process commands to be set using the / keys, switch to running mode.
(3) Press the / key to display the PID process command. The lowest digit and its decimal point blink on
the LED monitor.
(4) To change the PID process command, press the / key again. The new setting can be saved into the
inverter’s internal memory.
• The PID process command 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.
• Even if multistep frequency is selected as a PID command (PID-SS1 or PID-SS2 = ON), it is possible
to set a PID command using the keypad.
• When function code J02 is set to any value other than “0,” pressing the / key displays, on the
LED monitor, the PID command currently selected, but does not allow any change.
• On the LED monitor, the decimal point of the lowest digit is used to discriminate the PID related data
from the reference command. The decimal point blinks or lights when a PID command or PID feedback
amount is displayed, respectively.
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