Siemens SIMOVERT MASTERDRIVES Betriebsanleitung Seite 62

Mounting, Connecting-Up
Terminal / meaning
C/L+ Input (Plus DC link)
D/L- Input (Minus DC link)
PE Protective earth
Shield connection
Braking resistor terminal to X6 terminal strip (5 – 50 kW)
Terminal / meaning
G External braking resistor
H External braking resistor
PE Protective earth
Shield connection
Connectable cross section:
Multi-core
Stranded
AWG
WARNING
Fuses
NOTE
3-8
Braking units 5 – 50 kW:
DC link terminal to X3 terminal strip (5 – 50 kW)
Remark
Terminal strip (top of unit)
Terminal strip (top of unit)
Terminal strip (top of unit)
M5 bolt on housing at top
Remark
Terminal strip (bottom of unit)
Terminal strip (bottom of unit)
Terminal strip (bottom of unit)
M5 bolt on housing at bottom
(above shield plate)
NOTE
1.5 to 16 mm
1.5 to 16 mm
16 to 6
Table 3-2 Power connections of the 5 – 50 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.
2
2
6SE7087-6CX87-2DA1
Braking Unit SIMOVERT MASTERDRIVES
05.2009
Tightening
torque
[Nm / lbf ft]
1.5 / 1.1
1.5 / 1.1
1.5 / 1.1
6 / 4.4
Tightening
torque
[Nm / lbf ft]
1.5 / 1.1
1.5 / 1.1
1.5 / 1.1
6 / 4.4
Siemens AG