SIEMENS
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Siemens D 11 · 2015
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Options
(continued)
4
SINAMICS G150
Drive converter cabinet units
75 kW to 2700 kW
L13
Line contactor (for currents
≤
800 A for single connection)
SINAMICS G150 converter cabinet units in a single connection
do not have a line contactor as standard. Option
L13
is required
if a switching element is required for disconnecting the cabinet
from the supply (required for EMERGENCY OFF). The contactor
is controlled and powered inside the converter. For devices with
rated input currents > 800 A in single connection, the function of
option
L13
is provided by option
L26
.
Note:
For converters with power units connected in parallel, the line
contactor is included as standard.
L15
Sine-wave filter
Sine-wave filters are available in the voltage range 380 V to 480
V up to a type rating of 250 kW, and in the voltage range 500 V
to 600 V up to a type rating of 132 kW.
The sine-wave filter at the converter output supplies almost per-
fect sinusoidal voltages to the motor so that standard motors can
be used without special insulation and without insulated bear-
ings. The sine-wave filter also reduces the converter-related
supplementary motor noise. The maximum permissible motor
supply cable length is limited to 300 m.
Notice:
In conjunction with the option
L15
, the pulse frequency of the
converter must be increased. This reduces the power available
at the converter output (
for the derating factor, see SINAMICS
Low Voltage Engineering Manual
). The modulation depth of the
output voltage decreases to approx. 85% (380 V to 480 V) or ap-
prox. 83% (500 V to 600 V). The maximum output frequency is
150 Hz (for 380 V to 480 V) or 115 Hz (for 500 V to 600 V). It
should be noted that the reduced voltage at the motor terminals
compared to the rated motor voltage means that the motor
switches to field weakening mode earlier.
Note:
Option
L15
cannot be combined with the following options:
•
L07
(dv/dt filter compact plus VPL)
•
L08
(motor reactor)
•
L10
(dv/dt filter plus VPL)
•
M78
(motor connection from above)
L19
Connection for external auxiliary equipment
An outgoing, controlled feeder fused with max. 10 A for external
auxiliary equipment (e.g. motor external fan).
The voltage is tapped at the converter input upstream of the
main contactor / circuit breaker and, therefore, has the same
level as the supply voltage.
The outgoing feeder can be controlled internally by the con-
verter or externally.
L21
Surge suppression
In ungrounded IT systems, the line voltage is not permanently
connected to the ground potential because of the missing
ground connection of the supply network. Therefore, when a
ground fault occurs during operation, a voltage against ground
increased by a factor of 2 can occur. For this reason, it is recom-
mended that a surge suppression against ground be installed
for operation on IT systems. The surge suppression option in-
cludes the installation of line-side surge arresters and upstream
fuses for each system phase. The signaling contacts of the
surge arresters are connected in series for the monitoring and
connected to a customer interface.
Note:
Option
L21
does not include the installation of an insulation mon-
itor for the IT system. An insulation monitor should always be or-
dered separately as option
L87
when the supplying IT system is
not monitored at another position (e.g. at the transformer outgo-
ing feeder). Only one insulation monitor can be used in each gal-
vanically coupled network.
Option
L21
also does not include the factory-side removal of the
metal bracket which establishes the connection to ground of the
radio interference suppression filter installed as standard. The
metal bracket should therefore be removed during the installa-
tion or commissioning of the converter if the device is to be op-
erated on an ungrounded IT system.
Terminal
-X50:
Meaning
4
Checkback contact (NO contact), contactor closed
5
Checkback contact (NC contact), contactor closed
6
Common potential
Terminal
-X155:
Meaning
Range
1
L1
380 ... 690 V AC
2
L2
380 ... 690 V AC
3
L3
380 ... 690 V AC
11
Contactor control
230 V AC
12
Contactor control
230 V AC
13
Feedback signal, circuit breaker
230 V AC / 0.5 A;
24 V DC / 2 A
14
Feedback signal, circuit breaker
230 V AC / 0.5 A;
24 V DC / 2 A
15
Feedback signal, contactor
230 V AC / 6 A
16
Feedback signal, contactor
230 V AC / 6 A
PE
PE
© Siemens AG 2015