LS ELECTRIC LSLV-S100 Series, User Manual, Page: 248 / 270

Technical Specification
239
Display Functions
DB Resistors connect with B1, B2 of DB Unit. DBU has 3 LEDs. Red LED which is located
in middle displays supplying main power, one Green LED which is right side displays under
breaking and another green LED which is left side displays Over Heat Trip(OHT).
Displays Function description
POWER
(Red LED)
POWER LED is turned On when main power is supplied. Generally, POWER
LED is turn On while main power supplied because DBU is connected with
inverter.
RUN
(Green
LED)
RUN LED is turned off while DBU is ON by regenerative energy of Motor.
OHT
(Green
LED)
Under Breaking, if the temperature is exceeded over setting value due to over
heat of Heatsink, Cut the TURN ON signal of DBU and LED is turn on by
working overheat protection function.
Dynamic Braking Unit Resistors
Product(kW) DB Unit Resistor(
Ω
) Capacity(W) Reference
30kW
SV370DBU-4U
16.9
6,400
100% braking
torque,
10%ED
37kW
SV370DBU-4U 16.9 6,400
45kW
SV550DBU-4U
11.4
9,600
55kW
SV550DBU-4U
11.4
9,600
75kW
SV750DBU-4U
8.4
12,800
Note
•
The resistance/rated capacity/breaking torque/%ED of DB Resistor are valid only for the
DB unit of type A and the values of DB Resistor for type B and C refer to the manual of DB
Unit..
•
Rating Watt of DBU has to be doubled when %ED is doubled.