GE 6KBU300 Braking Unit BU-300

GEI-100350A

—————— TECHNICAL DATA ——————

0V24(MCMD)

MASTER

DCHG

745V

680V

640V

400V

SOUT

SIN

RESET

S3 RESETS3 RESET

TIM

MCMD

0V24

+24V

SLAVE

BU-300

1. DC Link input power must be removed

and fully discharged before removing

cover, or performing maintenance or

inspection

2. Do not perform voltage test with meggar

onregulation card terminals

Contents

Main Page Page Page CONTENTS Page 1. GENERAL Page 2. MAINS CHARACTERISTICS Page 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 Page Page 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 Page 5. MINIMUM VALUE OF THE RESISTORS THAT CANBEUSED ATTENTION!! Units are not protected against direct short-circuit between terminals CR, BR. This Page 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 Page 6KBU300 BLOCKS DIAGRAM 8 8. BLOCKS DIAGRAM S1 75 BU-C 76