Abus LIS-SE User Manual

Page 5AN120076.000_EN
ThefollowingtableshowsthetheoreticalservicelifeD
as a function of the FEM group and the load spectrum
factor.
Theoretical service life D, (h)
FEM groups
1Dm
M1
1Cm
M2
1Bm
M3
1Am
M4
2m
M5
3m
M6
4m
M7
5m
M8
Line
load group / ropes|load
factor
Theoretical service life D (h)
1
light 1 / L1
K=0.5
(Km
1
= 0.125  0.5
3
)
800 1600 3200 6300 12500 25000 50000 100000
2
medium 2 / L2
0.5 < K < 0.63
(Km
2
=0.25 0.63
3
)
400 800 1600 3200 6300 12500 25000 50000
3
heavy 3 / L 3
0.63 < K < 0.8
(Km
3
=0.5 0.8
3
)
200 400 800 1600 3200 6300 12500 25000
4
very heavy 4 / L4
0.8 < K < 1
(Km
4
=1 1
3
)
100 200 400 800 1600 3200 6300 12500
When the theoretical service life D has elapsed, cranes
and hoists connected to them may represent a risk to
persons and machines. If a load population recorder is
used, it is easier to determine the actual hours of use S,
from which the remaining service life is calculated.
In the case of standard hoists equipped with anLIS–SE
with integrated load population recorder, the operating
conditions are recorded electronically. The inspector
can have the actual hours of use S and other parame-
ters displayed at any time (see Section 5.3).
The FEM group is stored in the LIS–SE unit and can be
displayed using the operator terminal. The group is in -
dicated in hours at full load.
_________________________________
2.4.2 Definitions
Theoretical service life
The theoretical service life D is the calculated hours of
service of a crane or a hoist over a period of about 10
years taking into consideration the group determined
in accordance with FEM 9.511.
Actual hours of
use
The actual hours of use S represent the effective use of
the unit determined on the basis of operating hours and
load populations.
Tot a l s e r v i ce
life
The total service life of a standard hoist is the period
from initial commissioning through to final decommis-
sioning of the hoist.
Remaining service
life
The remaining service life or theoretical remaining ser-
vice life of a hoist is the difference between the actual
hours of use S a nd the theoretical service life D. When
thetheoreticalservicelifehaselapsed,thehoistmust
be overhauled.I
Safe working period
(SWP)
The hoist is within its safe working period if S/D is less
than or equal to 1.
2.5 Integrated Control Functions
In addition to overload protection functions, the LIS-
SE features a number of integrated hoist control func-
tions.
D AC- 4 disable control
In order to prolong the service life of the high lifting
speed contactor, the LIS- SE unit prevents the con-
tactor from being switched off until the set start- up
delay of t he motor has elapsed. This function signi-
ficantly reduces contact erosion.
D Braking with the motor acting as a generator
Each time the hoist is braked from high speed, the
LIS- SE unit ensures that the hoist is first braked by
operating the motor as a generator at low speed
before the brake is activated. This significantly ex-
tends the service life of the brake rotor.
D Motor current monitoring function
LIS- SE monitors the current inputs.
If excessive motor current is detected for an inad-
missibly long time, the unit immediately switches
off main contactor K1.

Abus LIS-SE Specifications

General

Brand	Abus
Model	LIS-SE
Category	Touch Panel
Language	English