Mitsubishi Electric FR-A820-00046 (0.4K), Инструкция по эксплуатации

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Parameters (H) Protective function parameter
FR-A800 5 - 333
5.10.12 Load characteristics fault detection
This function is used to monitor whether the load is operating in normal condition by storing the
speed/torque relationship in the inverter to detect mechanical faults or for maintenance. When the
load operating condition deviates from the normal range, the protective function is activated or the
warning is output to protect the inverter or the motor.
Parameters referred to
Pr. 22 Torque limit level => page 5-325
Pr. 73 Analog input selection => page 5-406
Pr. 178 to Pr. 189 (Input terminal function selection) => page 5-439
Pr. 190 to Pr. 196 (Output terminal function selection) => page 5-378
Pr. 858 Terminal 4 function assignment => page 5-411
Pr. 868 Terminal 1 function assignment => page 5-411
Pr. Name
Initial value
Setting range Description
FM CA
1480
H520
Load characteristics
measurement mode
0
0
Load characteristics measurement is normally
completed.
1
Load characteristics measurement mode is
started.
2, 3, 4, 5, 81, 82,
83, 84, 85
The load characteristics measurement status is
displayed. (Read-only)
1481
H521
Load characteristics
load reference 1
9999
0 to 400%
Set the reference value of normal load
characteristics.
8888: The present load status is written as
reference status.
9999: The load reference is invalid.
1482
H522
Load characteristics
load reference 2
9999
1483
H523
Load characteristics
load reference 3
9999
1484
H524
Load characteristics
load reference 4
9999
1485
H525
Load characteristics
load reference 5
9999
1486
H526
Load characteristics
maximum frequency
60 Hz 50 Hz 0 to 590 Hz
Set the maximum frequency of the load
characteristics fault detection range.
1487
H527
Load characteristics
minimum frequency
6 Hz 0 to 590 Hz
Set the minimum frequency of the load
characteristics fault detection range.
1488
H531
Upper limit warning
detection width
20%
0 to 400%
Set the detection width when the upper limit
load fault warning is output.
9999 Function disabled
1489
H532
Lower limit warning
detection width
20%
0 to 400%
Set the detection width when the lower limit load
fault warning is output.
9999 Function disabled
1490
H533
Upper limit fault
detection width
9999
0 to 400%
Set the detection width when output is shut off
when the upper limit load fault occurs.
9999 Function disabled
1491
H534
Lower limit fault
detection width
9999
0 to 400%
Set the detection width when output is shut off
when the lower limit load fault occurs.
9999 Function disabled
1492
H535
Load status detection
signal delay time / load
reference
measurement waiting
time
1 s 0 to 60 s
Set the waiting time after the load fault is
detected until warning output or output shutoff.
In the load characteristics measurement mode,
set the waiting time after the load measurement
frequency is reached until the load reference is
set.