Overtemperature alarm, Dip switches description, Selection of the intervention threshold – GE Industrial Solutions 6KBU300 Braking Unit User Manual
Page 15: Parallel connection of the unit
6KBU300
—————— TECHNICAL DATA ——————
3
5
3.2.5. Dip Switches description
Denomination
Function
S1-1
Enabling of the function for quick discharge of the DC link
Standard = OFF
S1-2 ... S1-5
Selection of intervention threshold of the braking unit
Braking threshold
S1-2
S1-3
S1-4
S1-5
400V dc
OFF
OFF
OFF
ON
640V dc
OFF
OFF
ON
OFF
680V dc
OFF
ON
OFF
OFF
745V dc
ON
OFF
OFF
OFF
S1-6
Not used
S2
MASTER = Selection of braking unit function as Master (standard)
SLAVE = Selection of braking unit as Slave
S3
Button Reset of alarm condition
bu0035
3.3. SELECTION OF THE INTERVENTION THRESHOLD
The DC threshold of the braking unit must be set accordingly to the supply voltage value of the connected
inverter, setting the switches as described in the following table.
N
OTE
:
It is possible to select only one braking threshold at a time.
Voltage
Braking threshold
Position of the switches
supply
[V
BR
]
S1-2
S1-3
S1-4
S1-5
230Vac
400Vdc
OFF
OFF
OFF
ON
400Vac
680Vdc
OFF
ON
OFF
OFF
460Vac
745Vdc
ON
OFF
OFF
OFF
bu0010
3.4. PARALLEL CONNECTION OF THE UNIT
There is the possibility to connect up to four braking units in parallel. For this purpose, terminals C and D must be
parallel connected and one of the units must be set as Master function, while the others as Slave (through switch
S2).
Only the Master needs to be selected for the desired intervention threshold (through switches S1-2...S1-5).
Connect the braking units as showed in the picture, paying particular attention to the correspondance of the
terminals connection C and D. For the cascade’s command connections (terminals 5 ... 10) correspondence of
terminals polarity is not requested, but it is advisable to use twisted cables.