SDMO R33C3 User And Maintenance Manual page 203

LEROY-SOMER
3.2.2 - Physical and visual checks
Before starting the machine for the first time, check that:
- the fixing bolts on the feet are tight
- the cooling air is drawn in freely
- the protective louvres and housing are correctly in place
- the standard direction of rotation is clockwise as seen from
the shaft end (phase rotation in order 1 - 2 - 3). For anti-
clockwise rotation, swap 2 and 3.
- the winding connection corresponds to the site operating
voltage (see section § 3.3).
Connection codes
L1(U)
A
T1 T7
3 phase
T4
T10
T12
T5
T9
T11
T6
L3(W)
T3
L1(U)
D
T1
3 phase
T4
T7
T10
T12
T9
T11
T8
T3 T6
L3(W)
FF
1 phase
T2 T8
T6
T3
T5
T11
T4
T7
T1
L
M
Voltage LM = 1/2 voltage LL
F L1(U)
T12 T1
1 phase
or
T9
3 phase
T6
T3
L3(W)
T8 T5
T11
L
M
Voltage LM = 1/2 voltage LL
InstallatIon and maIntenance
LSA 42.2 - 2 & 4 POLE
ALTERNATORS
Winding
6
7
N
8
T2
R 250 voltage detection :
0 => (T8) / 110 V => (T11)
R 438 voltage detection :
L2(V)
T8
0 => (T3) / 220 V => (T2)
Winding
6
7
N
8
T5 R 250 voltage detection :
0 => (T8) / 110 V => (T11)
T2
R 438 voltage detection :
L2(V)
0 => (T3) / 380 V => (T2)
Winding
6
T12
7
8
T9
T10
R 250 voltage detection :
L
0 => (T1) / 110 V => (T4)
R 438 voltage detection :
0 => (T10) / 220 V => (T1)
Winding
6
T4
7
T7
8
T10
L2(V)
R 250 voltage detection :
T2
L
0 => (T8) / 110 V => (T11)
R 438 voltage detection :
0 => (T3) / 220 V => (T2)
3.3 - Terminal connection diagrams
To modify the connection, change the position of the terminal
cables. The winding code is specified on the nameplate.
Any intervention on the alternator terminals during
reconnection or checks should be performed with
the machine stopped.
L.L voltage
50 Hz 60 Hz
190 - 208 190 - 240
-
220 - 230
-
190 - 208
50 Hz 60 Hz
380 - 415 380 - 480
-
440 - 460
-
380 - 416
50 Hz 60 Hz
220 - 240 220 - 240
-
250 - 260
200 220 - 240
50 Hz 60 Hz
220 - 240 220 - 240
-
250 - 260
220 - 240
200
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3433 en - 2010.10 / g
Factory connection
T6
T5
T11
T12
T10
T4
T9
T3
T8
T2
T7
T1
T11
T12
T10
T9
T6
T3
T8
T5
T2
T7
T4
T1
T4
T11
T7
T3
T9
T10
T8 T6
T2
T12 T5
T1
T11
T6 T3
L
T9
T5
T8
T10
T4 T2
L
T12
T7
T1
N
L3(W)
L2(V)
L1(U)
NDE
N
L3(W)
L2(V)
L1(U)
NDE
M
L
L
NDE
L3(W)
L2(V)
L1(U)
NDE
7