Settings under PID process control
To enable the PID process control, you need to set function code J01 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), you can access manual speed commands
(frequency command) with
and keys; if it is set to any other, you can access the PID process
command with those keys.
Refer to the FRENIC-Multi User's Manual for the details of the PID control.
Setting the PID process command with the
and keys
(1) Set function code J02 to "0: / 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 of the displayed
command and its decimal point blink.
(4) To change the PID process command, press the
/ key again. The PID process command
you have specified will be automatically saved into the inverter’s internal memory. It is retained
even if you temporarily switch to another PID process command source and then go back to the
via-keypad PID process command. Also, it is retained in the memory even while the inverter is
powered off, and will be used as the initial PID process command next time the inverter is
powered ON.
• Even if multi-frequency is selected as a PID process command (SS4 or SS8 = ON), you
still can set the process command using the keypad.
• When function code J02 is set to any value other than "0," pressing the
/ ke
displays, on the 7-segment LED monitor, the PID process command currently selected,
while you cannot change the setting.
• On the 7-segment LED monitor, the decimal point of the lowest digit is used to
characterize what is displayed. The decimal point of the lowest digit blinks when a PID
process command is displayed; the decimal point lights when a PID feedback amount is
displayed.
Table 3.4 PID process Command Manually Set with / Key and Requirements
PID control
(Mode
selection)
J01
PID control
(Remote
command SV)
J02
LED monitor
E43
Multi-frequency
SS4, SS8
With
/ key
0
PID process command by keypad
1 or 2
Other than 0
Other than 0 ON or OFF
PID process command currently
selected
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