3.3 Running Mode
3-10
• To input bipolar analog voltage (0 to ±10 VDC) to terminals [12] and [V2], set C35 and C45
data to "0." Setting C35 and C45 data to "1" enables the voltage range from 0 to +10 VDC
and interprets the negative polarity input from 0 to -10 VDC as 0 V.
• A reference frequency can be specified not only with the frequency (Hz) but also with other
menu items, depending on the setting of function code E48 (= 3 to 5, or 7).
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 differ depending
upon the current LED monitor setting. If the LED monitor is set to the speed monitor, you can access
manual speed commands (frequency command); if it is set to any other, you can access the PID process
command.
Setting the PID process command with
and keys
(1) Set function code J02 to "0" (
and keys on keypad).
(2) Set the LED monitor to something other than the speed monitor (E43=0) when the inverter is in
Running mode. When the keypad is in Programming or Alarm mode, you cannot modify the PID
process command with the
/ key. To enable the PID process command to be modified with the
/ key, first 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 will 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 multi-frequency is selected as a PID command (SS4 or SS8 = 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, while you cannot change the
setting.
• On the LED monitor, the decimal point of the lowest digit is used to discriminate the PID
related data from the frequency command. The decimal point blinks or lights when a PID
command or PID feedback amount is displayed, respectively.
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