Mounting, Connecting-Up - Siemens Simovert Masterdrives Serie Betriebsanleitung

05.2004
3
Mounting
Connecting-up
WARNING
Siemens AG
SIMOVERT MASTERDRIVES
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Mounting, Connecting-up

♦ Braking units are mounted next to SIMOVERT MASTERDRIVES on
a G rail or using M6 screws.
♦ Braking unit:
Connect the terminals C/L+ and D/L- (top side of the braking unit) to
the terminals C/L+ and D/L- of the drive (see Fig. 3-1).
• The connecting cables should be max. 3 m long and twisted.
• For several inverters in parallel with a common DC bus, the
braking unit should be connected to the inverter with the highest
rating.
♦ Connecting braking units in parallel:
• Only braking units with the same ratings or the next highest or
next lowest rating (see Table 7-1) may be connected in parallel.
• Each braking unit must have its own twisted feeder cable, max.
length 3 m .
♦ External braking resistors (selection list see chapter "Braking
Resistors")
• 5 kW to 20 kW
• 50 kW to 200 kW
• Length of the connecting cables between braking unit and
external braking resistor < 15 m.
Mis-connecting or shorting the DC bus terminals will destroy the drive
and the braking unit, respectively.
5 kW to 20 kW
For braking units with an internal brake resistor, the air discharge
temperature can be > 80 °C.
6SE7087-6CX87-2DA0
Bremseinheit / Braking Unit
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Disconnect jumper between terminals H1
and H2, connect resistor to Terminals G and
H2.
Connect the resistor to terminals G and H.
If an external resistor is connected, the jumper
between H1 and H2 must be removed, otherwise
the unit or the braking unit may be destroyed!
Mounting, Connecting-up
3-1