Auxiliary Power Supply / Main Contactor Or Bypass Contactor / „Safety Off; Drive Converters For Rated Dc Voltages 280 V To 310 V Dc - Siemens SIMOVERT MASTERDRIVES Operating Instructions Manual

Connecting-up
Type Order No.
A 6SE702_-_ _ A_ _
B 6SE702_-_ _ B_ _
C 6SE702_-_ _ C_ _
D 6SE702_-_ _ D_ _
Table 3.2 Possible connection cross-sections
3.1.1 Protective conductor connection
The protective conductor should be connected-up on both the supply- and motor sides. It should be dimensioned
according to the power connections. Due to discharge currents from the noise suppression capacitors, according
to VDE 0160, a minimum cross-section of 10 mm
cross-section must be routed in parallel (for cross-sections < 10 mm
3.2 Auxiliary power supply / main contactor or bypass contactor /
„Safety off"
3.2.1

Drive converters for rated DC voltages 280 V to 310 V DC

The auxiliary power supply and the main- or bypass contactor are connected through the 5-pin connector X9.
Connector X9 is supplied together with the connectors for the control terminal strip. Cables with cross-sections
2
from 0.2 mm to 2.5 mm
The auxiliary power supply is required if the drive converter is fed through a main-
and bypass contactor.
The main- or monitoring contactor is controlled through floating contacts -X9.4
and -X9.5 (software pre-setting).
More detailed information is provided in the Section „options".
Term. Function description
24 V DC external ≥ 2.1 A
1
(max. 4 A dependent on the options)
2 Reference potential to DC
3 Unassigned
4 Main contactor control
5 Main contactor control
Table 3.3 Connector assignment for -X9
The main contactor coil must be provided with overvoltage limiters, e.g. RC element.
3-4
Possible connection cross-section for power terminals
Finely stranded
2
(mm )
1.5 to 10
1.5 to 10
4 to 16
10 to 35
2
2
(AWG: 24 to 14) can be connected at X9.
AWG
12 to 6
12 to 6
10 to 4
6 to 2
is required, or a second protective conductor with the same
2
).
NOTE
SIMOVERT MASTER DRIVES
Multi-stranded/solid
2
(mm ) AWG
2.5 to 16 12 to 4
2.5 to 16 12 to 4
10 to 25 6 to 2
10 to 50 6 to 0
ext. 24 VDC Main contactor
pwr.supp. control
M
P
1 2 3 4 5
-X9
Fig. 3.1 Connecting an
external auxiliary
24 V DC power
supply and main
contactor control
Siemens AG 6SE7087-6BD70
Operating Instructions
09.97
AC 230
1 kVA