Drive Converters For Rated Dc Voltages 510 V To 780 V Dc - Siemens SIMOVERT MASTERDRIVES Operating Instructions Manual

09.97
3.2.2

Drive converters for rated DC voltages 510 V to 780 V DC

The auxiliary power supply and the main- and bypass contactor as well as the "safety off" function are connected
via the nine-pin connector X9.
Connector X9 is supplied together with the connectors for the control terminal strip. Cables with cross-sections
2
from 0.14 mm to 1.5 mm
be connected at X9.
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 -X9.7 and -X9.9 (software pre-setting).
The "safety off" function guarantees that a rotating field cannot occur
at the motor terminals, i.e. the motor cannot rotate. The "safety off"
function is activated by opening the external contact S1 (Fig. 3.2).
The drive converter is supplied with terminals X9.5 and X9.6
jumpered.
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 / 4 Checkback signal for "safety off"
5 / 6 "Safety off" active with switch S1 open
7 Main contactor control
8 Unassigned
9 Main contactor control
Table 3.4 Connector assignment for -X9
The main contactor coil must be provided with overvoltage limiters, e.g. RC element.
Siemens AG 6SE7087-6BD70
SIMOVERT MASTER DRIVES
2
(AWG: 26 to 16) and 1 mm
♦ The power terminals can still be live (under voltage), even if the "safety off"
function is active!
♦ The relay on PEU -X9:7,9 is, for DC-AC units, only suitable for switching
voltages up to 30 V!
Operating Instructions
2
(AWG: 18), finely-stranded with connector sleeves, can
ext. 24 V DC
pwr.supp.
P
-X9
Fig. 3.2
NOTE
WARNING
Connecting-up
30 V DC
10....30 mA
S1
Main contactor
control
M
1 2 3 4 5 6 7 8 9
30 V DC
2 A
Connecting an external auxiliary 24 V
DC power supply, main contactor
control and safety off
30 V DC
0.5 A
3-5