12- 44
Service Manual
LWE130
© BT Europe AB
Electrical system – 5000
Technical specifications
T-code
Valid from serial number
Date
Order number
675
914369-
2005-09-23
226057-040
12.11 Technical specifications
12.11.1 Transistor regulator SEM-X
Table 14: Transistor regulator specification SEM-X
Item
Value
Unit
Description
Rated operating voltage
24
Volts
Overvoltage limit
33
Volts
28.8 V continuously
Undervoltage limit
16,8
Volts
Minimum operating voltage
Electrical insulation towards cold body
500
V AC
Minimum
PWM frequency
16
kHz
Max. current of armature winding *
75
Amps
for 2 minutes
40
Amps
for 1 hour
Max. current of field winding
12
Amps
for 2 minutes
6,6
for 1 hour
Contactor voltage
24
Volts
Same as battery voltage
Contactor current
3
Amps
Max
KSI input voltage, Min.
16.8
Volts
Logic input voltage
>9,4; High
<9,2; Low
Volts
Operating temperature
-30 to +40
°C
Overtemperature, reduction
70
°C
Reduced in proportion to the rise
in temperature
Undertemperature, reduction to 80%
-10
°C
Maximum temperature limit
90
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