Pfaff ESW BETA SL Série Traduction Du Manuel D'utilisation Original page 29

Electric wire rope winch BETA SL
E nglish
5.2 Explanation to drive groups FEM 9.511 for rope drives
The electric wire rope winches are classified according to different drive groups, DIN 15020, FEM
9.511, ISO4301/1 (see technical data)
Those drive groups refer to the rope drive and all mechanical parts of the winch.
It determines the period of time of safe operation depending on load collective.
running
time /
medium running time per day in
category
hour, related to one year
no. Term
light
1
medium
2
heavy
3
4 very
heavy
5.3 Calculated operating times acc. to FEM 9.755
DIN 15020/1 FEM 9.511
ISO 4308/1; SO 4301/1
Load collective
line
factor of the load spectrum
light 1 - L1
k = 0,5
1
(km 1 = 0,125 = 0,5 3 )
medium 2 - L2
0,5 < k < 0,63
2
(km 1 = 0,25 = 0,63 3 )
heavy 3 - L3
3 0,63 < k < 0,8
(km 1 = 0,5 = 0,8 3 )
very heavy 4- L4
0,8 < k < 1,0
4
(km 1 = 1 = 1,0 3 )
*) not included in FEM 9.511
Apart from drive groups, the rope has to be checked and serviced regularly according to DIN15020, if
necessary, replace.
By comparing those data with the actual operating conditions and times the consumed part of the cal-
culated operating time can be determined
The consumed part of the calculated operation has to be recorded by the operator (e.g. writing, count-
ing, measuring)
After expire of the calculated working life the winch has to be given a thorough examination
1)
only by manufacturer or competent personnel authorised by manufacturer
technische Änderungen vorbehalten
Symbol
Explanation
exceptionally maximum load,
continuously very small loads
k < 0,50
often maximum load, but contin-
uously small loads
0,50 < k < 0,63
frequent maximum load, contin-
uously average loads
0,63 < k < 0,80
continuously maximum load and
adjacent loads
0,80 < k < 1,00
1Dm
Drive group
1Em*
(400) *
800
(200) *
400
(100) *
200
(50) *
100
design changes under reserve
04.01.401/1000
V V V
006 012 025
 0,12  0,25  0,5
acc. to FEM9.511, DIN15020, ISO4301
1Em* 1Em* 1Dm 1Cm 1Bm 1Am 2m
1Em* 1Dm 1Cm 1Bm 1Am 2m
1Dm 1Cm 1Bm 1Am 2m
1Cm 1Bm 1Am 2m
1Cm 1Bm 1Am
M1 M2 M3 M4
calculated operation time D (h)
1600 3200 6300 12500 25000 50000 100000
800 1600 3200
400 800 1600
200 400 800
changements techniques sous réserve
V V V V
05 1 2 3
 1  2  4  8
Drive group
3m
3m 4m
3m 4m 5m
2m 3m 4m
M5 M6 M7
6300 12500 25000
3200 6300 12500
1600 3200 6300
1)
V V
4 5
 16  16
3m 4m
4m 5m
5m
5m
M8
50000
25000
12500
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