Fu1-54: Overload Warning Level; Fu1-55: Overload Warnig Time; Fu1-56: Overload Trip Selection; Fu1-57: Overload Trip Level - LG SV-iS5 Instruction Manual

Chapter 6 - Parameter Description [FU1]
Output Current
Forced-Cool
100%
95%
Self-Cool
65%
20Hz
[Load Current Derating Curve]
☞
Note: Despite the motor current changing frequently due
to load fluctuation or acceleration and deceleration, the
inverter calculates the i 2 t and accumulates the value to
protect the motor.
Related Functions: FU2-33 [Rated Motor Current]

FU1-54: Overload Warning Level

FU1-55: Overload Warning Time
FU1? OL level
54 150 %
Factory Default:
150 %
FU1? OL time
55 10.0 sec
Factory Default:
10.0 sec
The inverter generates an alarm signal when the output
current has reached the FU1-54 [Overload Warning
Level] for the FU1-55 [Overload Warning Time]. The
alarm signal persists for the FU1-55 even if the current
has become the level below the FU1-54.
Multi-function output terminal (AXA-AXC) is used as the
alarm signal output. To output the alarm signal, set I/O
44 [Multifunction Auxiliary Contact Output] to ' OL' .
☞
Note: Inverter is not tripped by this function.
☞
Note: The set value is the percentage of FU2-33 [Rated
Motor Current].
Morek IT OÜ, Rauna 24, 76506 Saue Harjumaa, Estonia. www.morek.eu Tel. +372 604 1423 Fax +372 604 1447 morek@morek.eu
60Hz
54 150
150
55 10.0
10.0
96
Output Current
FU1-54
[OL Level]
FU1-54
[OL Level]
AXA-AXC
[Overload Warning]
Related Functions:
FU2-33 [Rated Motor Current]
I/O-44 [Multi-function Auxiliary Contact
Output]

FU1-56: Overload Trip Selection

FU1-57: Overload Trip Level

FU1-58: Overload Trip Delay Time
FU1? OLT select
56 --- Yes ---
Factory Default:
Yes
FU1? OLT level
57 180 %
Factory Default:
180 %
FU1? OLT time
58 60.0 sec
Factory Default:
60.0 sec
Inverter cuts off its output and displays fault message
when the output current persists over the FU1-57
[Overload Trip Level] for the time of FU1-58 [Overload
Trip Time]. This function protects the inverter and motor
from abnormal load conditions.
Time
ON
Time
t1 t1
t1: FU1-55 [Overload Warning Time]
56 1
1
57 180
180
58 60.0
60.0