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GE
6KBU300 Braking Unit
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GE Industrial Control Systems
We bring good things to life.
GEI-100350ARev. 2.0 (6/98)
Internet Address: http://www.ge.com
Contents
Main
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Page
Page
CONTENTS
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1. GENERAL
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2. MAINS CHARACTERISTICS
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1
3. TECHNICAL DATA
c
a1a1
a
W ARNING !
BU-300
Front view
CAUTION
3.2. HARDWARE SPECIFICATIONS 3.2.1. Power required
3.2.2. Internal fuses
3.2.3. Signalling LEDs
3.2.4. Terminal strip
GEI-100350A
Regulation board terminal strips:
Maximum cable sizes for power terminals C,D,CR,BR
Maximum cable sizes of the regulation section terminals
3.2.5. Dip Switches description
3.3. SELECTION OF THE INTERVENTION THRESHOLD
NOTE:It is possible to select only one braking threshold at a time.
3.4. PARALLEL CONNECTION OF THE UNIT
NOTE:When a very close mounting of several braking units is needed, it is necessary to keep among
NOTE:
3.5. OVERTEMPERATURE ALARM.
3.6. USE OF DC LINK DISCHARGE FUNCTION
4. DIMENSIONING OF THE BRAKING UNIT AND CORRESPONDINGRESISTOR
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4.1. SIMPLIFIED DIMENSIONING OF THE RESISTOR
1000
10
1 0,1 13456789
RESISTANCE POWER
2 OVERLOADFACTOR
Pause time
NOTE:The use of the normalized resistors reported at chapter 6 it is strongly reccomended
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5. MINIMUM VALUE OF THE RESISTORS THAT CANBEUSED
ATTENTION!! Units are not protected against direct short-circuit between terminals CR, BR. This
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6. STANDARD BRAKING RESISTORS
NOTE:the power ratings indicated with (*) have a value lightly below to the one calculated for POVL
7. EXTERNAL PANEL MOUNTED DC FUSE
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6KBU300
BLOCKS DIAGRAM 8
8. BLOCKS DIAGRAM
S1
75
BU-C
76