Cleaning Function - Mitsubishi Electric FR-F820-04750 Instruction Manual

(A) Application parameters
5.11.4

Cleaning function

This is a function to remove stains or foreign matter on the impellers or fans of pumps by setting a for-
ward/reverse rotation sequence.
Pr.
1469
A420
1470
A421
1471
A422
1472
A423
1473
A424
1474
A425
1475
A426
1476
A427
1477
A428
1478
A429
1479
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.
Output
frequency
Pr. 1474
Pr. 1472
Pr. 1469
Fig. 5-155:
5 - 342
Name
Number of cleaning times
monitor
Number of cleaning times
setting
Cleaning trigger selection
Cleaning reverse rotation
frequency
Cleaning reverse rotation
operation time
Cleaning forward rotation
frequency
Cleaning forward rotation
operation time
Cleaning stop time
Cleaning acceleration time
Cleaning deceleration time
Cleaning time trigger
ON
STF
Trigger
ON
Y215 ON
Pr. 8
Normal
operation
0 Hz
Pr. 1476
Pr. 1477
Pr. 1473
0
Signal timing for cleaning operation
Initial value Setting range Description
0 0 to 255
0 0 to 255
0 0 to 15
30 Hz 0 to 590 Hz
5 s 0 to 3600 s
0 to 590 Hz
9999
9999
0 to 3600 s
9999
9999
5 s 0 to 3600 s
0 to 3600 s
9999
9999
0 to 3600 s
9999
9999
0
0
0.1 to 6000 h
A trigger generated during the cleaning
operation does not affect the operation.
ON
Cleaning operation
Pr. 1475
Pr. 1477 Pr. 1478
Pr. 1476
Pr. 1478
2
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.
OFF
Pr. 7
Pr. 1476
Pr. 1476
Time
The cleaning operation is
terminated when the number of
cleaning operation times
reaches the Pr. 1470 setting.
3
Parameters
I003036E