05.2004 Mounting, Connecting-up
Siemens AG 6SE7087-7CX87-2DA0
SIMOVERT MASTERDRIVES Unité de Freinage / Braking Unit 3-5
3.2 Power terminals
Construction type S Construction type A Construction type B
Connection Terminal Tightening
torque
[Nm / lbf ft]
Terminal Tightening
torque
[Nm / lbf ft]
Terminal Tightening
torque
[Nm / lbf ft]
C/+ Input X3:1 0.5 / 0.37 X3:2 2 / 1.5 Busbar C/L+ 13 / 9.6
D/- Input X3:3 0.5 / 0.37 X3:3 2 / 1.5 Busbar D/L- 13 / 9.6
Shielding
X3:5 0.5 / 0.37 M5 screw on
top of
housing
6 / 4.4 M6 screw on
top of
housing
10 / 7.4
PE1 M5 screw on
top of
housing
6 / 4.4 X3:4 2 / 1.5 Busbar PE1 13 / 9.6
G external braking
resistor
X6:1 0.5 / 0.37 X6:1 2 / 1.5 Busbar G /
R+
13 / 9.6
H1 internal braking
resistor
X6:3 0.5 / 0.37 X6:2 2 / 1.5
H2 / H external braking
resistor
X6:5 0.5 / 0.37 X6:3 2 / 1.5 Busbar H / R- 13 / 9.6
Shielding
X6:7 0.5 / 0.37 M5 screw on
bottom of
housing
6 / 4.4 M6 screw on
top of
housing
10 / 7.4
PE2 M5 screw on
bottom of
housing
6 / 4.4 X6:4 2 / 1.5 Busbar PE2 13 / 9.6
Connection via
Terminal strip Terminal strip Cable lug according to DIN
46235 and M8 screws
Connectable
conductor cross-
section
VDE
(mm
2
)
1.5 to 4 2.5 to 10 max. 1 x 95 or 2 x 70
(stranded):
AWG 16 to 10 14 to 6 max. 1 x 000
NOTE
AWG: American Wire Gauge
Recommended conductor cross-sections: see
Table 7-1.
Table 3-1 Power terminals of the braking unit
The braking unit may be connected to the DC bus bar with or without
using fuses.
The connections between the drive converter and braking unit must be
short-circuit- and ground-fault proof.
The voltage withstand capability of the cable must be according to the
line voltage.
WARNING
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