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5. PARAMETERS
5.7 (H) Protective function parameter
3
4
5
5
5
6
7
8
9
10
5.7.13 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.
Pr. Name Initial value Setting
range
Description
1480
H520
Load characteristics
measurement mode
0 0 Load characteristics measurement mode is not started. (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 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.
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