Siemens SIMOVERT MASTERDRIVES Betriebsanleitung Seite 63

05.2009
Terminal / meaning
C/L+ Input (Plus DC link)
D/L- Input (Minus DC link)
Protective earth
Shield connection
Terminal / meaning
G/R+ External braking resistor
H/R- External braking resistor
Protective earth
Shield connection
Connection via
AWG
WARNING
Fuses
NOTE
Siemens AG 6SE7087-6CX87-2DA1
SIMOVERT MASTERDRIVES
Braking units 100 – 200 kW:
DC link terminal (via busbars, 100 - 200 kW)
Remark
Busbar C/L+
Busbar D/L-
Busbar PE
M6 bolt on housing at top
Braking resistor terminal (via busbars, 100 - 200 kW)
Remark
Busbar G/R+
Busbar H/R-
Busbar PE
M6 bolt on housing at bottom
NOTE
crimping connector according to DIN 46234
covered with shrinkable tube
connection of cable via provided M8 x 25 bolts
max 2/ 0
Table 3-3 Power connections of the 100 - 200 kW braking units
The braking unit may be connected to the DC bus bar with or without
using fuses. The connections between the drive converter or inverter
and braking unit must be short-circuit- and ground-fault proof.
The dielectric strength rating of the cable must be selected according to
the line voltage.
♦ Fuses are necessary for multi-motor systems with a common DC
link (incoming power > > braking unit rating).
♦ High voltage fuses (1000 V) must be used in the positive and
negative branches (fuses type see Table 7-1).
♦ Fuses are not required for single-motor drives (one braking unit on
converter).
These fuses only provide protection in "critical situations". They do not
protect the braking unit or external braking resistor.
Braking Unit
Mounting, Connecting-Up
Tightening torque
[Nm / Ibf ft]
16 / 11.8
16 / 11.8
16 / 11.8
8 / 5.9
Tightening torque
[Nm / Ibf ft]
16 / 11.8
16 / 11.8
16 / 11.8
8 / 5.9
3-9