6KBU300
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3.2. HARDWARE SPECIFICATIONS3.2.1. Power required
The supply of the braking unit is directly obtained by the DC Link and the maximum consumption is 15W.
3.2.2. Internal fuses
Denomination Protection for Fuses
F1 Switchinginput supply 4A500V slow6 x 32 mm
F2 +24Vsupply(terminals1 and 2) 315mA250V slow 5 x 20 mm
Master output command ( terminals 5 and6)
F3 Supplyofthe internalfan (+24V) 1A 250V slow5 x 20 mm
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The fuse F2 for the +24V supply (terminals 1 and 2) and Master output command (terminals 5 and 6) is mounted
on the front panel.
Replacement vendor sources:
Fuse 1 - Omega (Europe) GF632240
Fuse 2 - Omega (Europe) ST520131
- Littlefuse 218315
Fuse 3 - Omega (Europe) ST520210
- Littlefuse 218001
3.2.3. Signalling LEDs
Denomination Colour Function
24V green Itshows presence of the power supply
MASTER yellow Thebraking unit is set as master
BR yellow Thebraking unit is active (braking)
OK green OKrelay status (closed = OK)
AL red Itshows the alarm condition
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3.2.4. Terminal strip
The power terminal strip is composed by the following terminals:
Terminals Function I/Q Volt.max. Curr.max.
CConnection to the intermediate circuit of the
inverter I 770Vdc Ipeak
DConnection to the intermediate circuit of the
inverter I 770Vdc Ipeak
CR Connectionto the braking resistor Q 745Vdc Ipeak
BR Connectionto the braking resistor Q 745Vdc Ipeak
PE Groundconnection – – –
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