Mitsubishi Electric FR-F820-00046 Instruction Manual page 430

• Example of protective function by time limit (Pr.760 = "0")
Measured value[PSI]
Pr.761
Output frequency[Hz]
Pr.127
0Hz
STF
Y49
Y51
ALM
• Example of protective function measured value limit (Pr.760 = "1")
Measured value[PSI]
Pr.763
Output frequency[Hz]
Pr.127
0Hz
STF
Y49
Y53
ALM
 Setting multiple PID pre-charge functions
• When the second pre-charge function is set, two sets of pre-charge functions can be switched for use. The second pre-
charge function is enabled by the turning ON RT signal.
• The second pre-charge function parameters and signals function in the same way as the following parameters and signals
of the first pre-charge function. Refer to the first pre-charge function when setting the second pre-charge functions.
Classification
Pr.
760
761
762
Parameter
763
764
1132
Classification
Signal
Input signal X77
Y49
Output signal Y51
Y53
Ending level
Pr.764
E.PCH
First pre-charge function parameters
Name
Pre-charge fault selection
Pre-charge ending level
Pre-charge ending time
Pre-charge upper detection level
Pre-charge time limit
Pre-charge change increment amount
First pre-charge function parameters
Name
Pre-charge end command
During pre-charge operation
Pre-charge time over
Pre-charge level over
When Pr.760 = "0",
output is immediately shut off.
E.PCH
When Pr.760 = "1",
output is shut off after the motor decelerates to a stop.
Second pre-charge function parameters
Pr.
765 Second pre-charge fault selection
766 Second pre-charge ending level
767 Second pre-charge ending time
768 Second pre-charge upper detection level
769 Second pre-charge time limit
Second pre-charge change increment
1133
amount
Second pre-charge function parameters
Signal
X78 Second pre-charge end command
Y50 During second pre-charge operation
Y52 Second pre-charge time over
Y54 Second pre-charge level over
Time
Time
Time
Time
Name
Name
5. PARAMETERS
5.11 (A) Application parameters
1
2
3
4
5
6
7
8
9
10
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