OZ Lifting Products ELECTRIC Serie Manuel De L'opérateur page 7

RUN TIME LIMITS:
Rated Percentage Duty Cycle (%ED):
Do not exceed the rated duty cycle
WARNING
The service life of the product is significantly dependent on the frequency at which it is operated. To
ensure long service life, operate the winch within its rated percentage duty cycle (%ED). The rated
percentage duty cycle (%ED) is expressed by the duty factor (%ED) obtained at the rated voltage and
percentage duty cycle (%ED) =
The maximum startup frequency represents the frequency of startup operations per hours, including
inching operations. The rated speed, which indicates the average speed of winding up or down at a
rated load. A cycle is limited at 10 minutes at most.
Rated Percentage Duty Cycle (%ED):
Load Spectrum
Light
Medium
Heavy
Very Heavy
Load %
Operating time %
lifting time+lowering time
lifting time+idle time+lowering time+idle time
State of Loading
Occasional full
load; Usually light
load; Small fixed
load
Occasional full 0.5 < k ≤ 0.63
load; Usually light
load; Average
fixed load
Repetitive full 0.63 < k ≤ 0.8
load; Usually
average load;
Heavy fixed load
Usually almost full
load; Very heavy
fixed load
Load %
Operating time %
Cubic Mean Average Daily
Value Operating Time
in Hours
k ≤ 0.5
0.8 < k ≤ 1
Load %
Operating time %
EN pg.7
%
Calculated Total
Operating Time
in Hours
2 ≤ 3,200
1 ≤ 1,600
0.5 ≤ 800
0.25 ≤ 400
Load %
Operating time %