Mitsubishi Electric FR-F820-00046 Instruction Manual page 39

Stirring function during the PID sleep (Pr.1364 and Pr.1365)
• This function starts the pump periodically to prevent clogging of the pump while the PID output suspension
function (sleep function) is activated.
• When the sleep function is activated and the elapsed time exceeds the Pr.1365 Stirring interval time, the pump
is operated at the stirring frequency (Pr.232 or Pr.233). The pump decelerates to stop when the elapsed time
exceeds the Pr.1364 Stirring time during sleep. The interval time count for the second time onward starts after
the previous deceleration stop is completed.
Output frequency
Pr.232
(Pr.233)
PID
ON
SLEEP
STIR
• The rotation direction depends on the Pr.232 and Pr.233 settings.
Stirring frequency
Pr.232 setting Pr.233 setting
9999 9999
0 to 590 Hz Arbitrary
9999 0 to 590 Hz
• The stirring signal (STIR) turns ON during the stirring operation. For the STIR signal, set "218 (positive logic)" or
"318 (negative logic)" in any of Pr.190 to Pr.196 (output terminal function selection) to assign the function.
• When Pr.579 Motor connection function selection="1 or 3" (multi-pump function), the starting order of the
motors is changed when the sleep function is activated. The stirring operation during the sleep is applied to the
motor to be started first next time. For example, when the previous starting order was M1  M2  M3  M4, and
the next starting order of motors is M2  M3  M4  M1, stirring operation during the sleep will be applied to the
M2 motor.
• When the auxiliary motor starting condition is satisfied by the stirring operation during the sleep while the multi-
pump function is used, the stirring operation continues. The auxiliary motor does not start.
NOTE
• When the control switches between the first PID control and second PID control during the sleep function, the
interval time and the stirring time timer are carried over.
• When the sleep function cancellation condition is satisfied, the sleep function is cancelled, and the stirring function
during the sleep is also cancelled.
• Changing the terminal assignment using Pr.190 to Pr.196 (output terminal function selection) may affect the
other functions. Set parameters after confirming the function of each terminal.
Interval time Stirring time
(Pr.1365) (Pr.1364)
ON
ON
Rotation direction
―
Command direction
Opposite to the
command direction
Interval time
(Pr.1365)
Remarks
The stirring function during the PID sleep is disabled.
Pr.232 frequency is used for stirring.
Pr.233 frequency is used for stirring.
5
Stirring time
(Pr.1364)
ON
BCN-C22005-703
Time