Mitsubishi Electric 800 Series Instruction Manual page 392

5.11.5 Cleaning function
This is a function to remove stains or foreign matter on the impellers or fans of pumps by setting a forward/reverse rotation
sequence.
Pr. Name
1469 Number of cleaning times
A420 monitor
1470 Number of cleaning times
A421 setting
1471 Cleaning trigger selection
A422
1472 Cleaning reverse rotation
A423 frequency
1473 Cleaning reverse rotation
A424 operation time
1474 Cleaning forward rotation
A425 frequency
1475 Cleaning forward rotation
A426 operation time
1476 Cleaning stop time
A427
1477 Cleaning acceleration time
A428
1478 Cleaning deceleration time
A429
1479 Cleaning time trigger
A430
 Outline of the cleaning operation
• Setting a number in Pr.1470 Number of cleaning times setting enables the cleaning function.
• The cleaning operation is started when the trigger set in Pr.1471 or Pr.1479 occurs, or when X98 signal turns ON. When
the cleaning is started initially, the operation in the opposite direction to the start command is performed.
STF ON
Trigger ON
Y215
ON
Output
frequency
Pr.8
Pr.1474
Normal
operation
0 Hz
Pr.1476
Pr.1472
Pr.1469 0
• When the number of times of cleaning operation is an odd number, the operation in the opposite direction to the start
command is performed. When the number of cleaning times is an even number, the operation in the start command
direction is performed.
Initial value Setting range
0 0 to 255
0 0 to 255
0 0 to 15
30 Hz 0 to 590 Hz
5 s 0 to 3600 s
9999 0 to 590 Hz
9999
9999 0 to 3600 s
9999
5 s 0 to 3600 s
9999 0 to 3600 s
9999
9999 0 to 3600 s
9999
0 0
0.1 to 6000 h
ON
Cleaning operation
Pr.1477
Pr.1476
Pr.1477 Pr.1478
Pr.1473
1
Displays the number of cleaning times. (Read-only)
Set the number of cleaning times.
Select the condition to start cleaning.
Set the reverse rotation frequency for cleaning operation.
Set the operating time after the cleaning reverse rotation
frequency is reached.
Set the forward rotation frequency for cleaning operation.
As set in Pr.1472.
Set the operating time after the cleaning forward rotation
frequency is reached.
As set in Pr.1473.
Set the stop time when the rotation is switched from forward
to reverse or from reverse to forward.
Set the acceleration time during cleaning.
Acceleration time for normal operation
Set the deceleration time during cleaning.
Deceleration time for normal operation
Time trigger disabled
Cleaning is performed at a set time interval.
A trigger generated during the
cleaning operation does not affect the
operation.
Pr.1475
Pr.1478
Pr.1476
Pr.1476
3
2
Description
OFF
Pr.7
Time
The cleaning operation is
terminated when the number of
cleaning operation times reaches
the Pr.1470 setting.
5. PARAMETERS
5.11 (A) Application parameters
3
4
5
5
5
6
7
8
9
10
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