Mounting, Connecting-Up - Siemens simovert masterdrives Betriebsanleitung

05.2004
3

Mounting, Connecting-up

♦ Braking units are mounted next to SIMOVERT MASTERDRIVES on
Mounting
♦ Braking unit:
Connecting-up
♦ Connecting braking units in parallel:
♦ External braking resistors (selection list see chapter "Braking
WARNING
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.
Siemens AG 6SE7087-6CX87-2DA0
SIMOVERT MASTERDRIVES
a G rail or using M6 screws.
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.
• 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 .
Resistors")
• 5 kW to 20 kW
Disconnect jumper between terminals H1
and H2, connect resistor to Terminals G and
H2.
• 50 kW to 200 kW
Connect the resistor to terminals G and H.
• Length of the connecting cables between braking unit and
external braking resistor < 15 m.
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!
Bremseinheit / Braking Unit
Mounting, Connecting-up
3-1