Installation and maintenance
R250
A.V.R.
4067 en - 2009.05 / b
LEROY-SOMER
5
2 - R250 A.V.R.
2.1 - Characteristics
- Storage: -55°C; +85°C
- Operation: -40°C; +70°C
- Voltage regulation: around ± 0,5 %.
- Supply range/voltage detection 85 to 139 V
(50/60Hz).
- Rapid response time (500 ms) for a
transient voltage variation amplitude of
± 20 %.
- Voltage setting
P1
.
- Stability setting
P2
.
- Power supply protected by 8 A fuse,
replacement product: Ferraz-Shawmut
T084013T fast-blow fuse, 8 A FA 250 V,
breaking capacity 30 kA.
2.2 - U/F Fonction and LAM
The threshold position (50 Hz - 60 Hz) to
action the U/F fonction as well as the LAM
setting type is selected using the
potentionmeter.
WARNING: The jumper settings must
correspond to the rated operating
frequency (see the nameplate on the
alternator).
Risk of destruction for the alternator.
The threshhold position and LAM fonction
settings are done with the jumper.
Operating at 50 Hz: (U/F gradient)
0
: threshold at 48 Hz without LAM for impacts
between 30 and 40% of the rated load.
1
: threshold at 48 Hz with LAM 13% for
impacts between 40 and 70% of the rated
load.
2
: threshold at 48 Hz with LAM 25% for
impacts > 70% of the rated load.
Operating at 60 Hz: (U/F gradient)
3
: threshold at 58 Hz without LAM for impacts
between 30 and 40% of the rated load.
4
: threshold at 58Hz with LAM 13% for
impacts 40 and 70% of the rated load.
5
: threshold at 58Hz with LAM 25% for
impacts > 70% of the rated load.
Specific operating
6
: threshold at 57Hz without LAM for speed
variations at a steady state > 2 Hz
7
: threshold at 65Hz without LAM for variable
speed and tractelec / gearlec (U/F
gradient).
8
: special: the factory setting 48Hz 2U/F
gradient ; a special programme is possible
on request. This programme must be
specified before ordering, during the project
study.
9
: threshold at 47.5 Hz without LAM for
speed variations at a steady state > 2 Hz.
For hydraulic applications, it is advisable to
select:
- position 0 for 50 Hz
- position 3 for 60 Hz
0
9
8
7 6 5 4
3
2
1
o
1
2
3
5
6
7
9
8
4
60Hz
65Hz
57Hz
47.5Hz
50Hz
KNEE
SPECIAL
LAM
OFF
OFF
13%
13%
25%
25%
LAM
KNEE
KNEE
LAM OFF
LAM OFF
LAM OFF
241/285
Содержание R 340 U
Страница 1: ...User and maintenance manual for generating sets R340U 33504081101NE_0_1 ...
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