SIEMENS
Description of options
SINAMICS GM150, SINAMICS SM150
Description of options
6/23
Siemens D 12 · 2012
6
■
Options
With option
L29
a VSM10 Voltage Sensing Module is integrated
into the converter. The VSM10 detects the line supply voltage
regarding phase position, frequency and amplitude. A voltage
transformer, which should be provided on the primary side of the
switch S1 (plant-side) is used for this purpose. It thus supplies
the data for synchronization of the motor to the line and from the
line to the converter. The converter control prepares the drive
signals of the two circuit breakers to be provided on the plant
side.
In addition, an output reactor with
u
K
= 10 % (±2 %) or option
Y15
(sine-wave filter) is required to decouple the converter
during commutation.
Note:
A
u
K
value of 10 % cannot be reached with option
L08
(output
reactor).
Circuit breaker S3 should be dimensioned so that it protects the
motor against overvoltage and overcurrent during line supply
operation. If temperature sensors are fitted in the motor, these
must be monitored on the plant side for the case of mains
operation.
Notice:
Option
L29
is only possible if the converter output voltage is the
same as the line voltage.
L32
Automatic restart (SINAMICS GM150)
Option
L32
enables the converter to be restarted after a power
failure once the mains supply has been restored.
If such a restart is required for technical reasons, the conditions
set out below must be taken into consideration.
The 400 V 3 AC and 230 V 1 AC auxiliary infeed supplies must
not fail; this is so that the voltage supply to the fans and coolant
pumps and to the controller and closed-loop control is main-
tained.
If the main infeed fails, a pulse block is triggered and the DC link
is supported through precharging for a short period. It is impor-
tant to distinguish between two cases here:
Case A:
The circuit breaker on the input side is still switched on.
When the medium voltage supply returns, the DC link voltage
rises. This is detected by the closed-loop control and the control-
ler. Operation is resumed when a threshold value is exceeded.
Case B:
The circuit breaker on the input side has responded.
After a fixed time (which can be parameterized), the circuit
breaker receives an "ON command". The response of the DC link
voltage is then analyzed.
If the DC link voltage falls, the converter is disconnected.
If the DC link voltage rises, operation is resumed when a thresh-
old value is exceeded.
Depending on the down times, load characteristic and moment
of inertia, the drive may be "caught" again or the machine may
need to be "excited" again first before operation can be re-
sumed.
With option
L32
a VSM10 Voltage Sensing Module is integrated
into the converter. The VSM10 detects the line supply voltage re-
garding phase position, frequency and amplitude. A voltage
transformer, which should be provided on the primary side of the
switch S1 (plant-side) is used for this purpose. This enables the
controller and closed-loop control to detect when the medium
voltage returns after a power failure if the circuit breaker on the
input side has dropped out.
For safety reasons, a time limit is built in between the power fail-
ure and the maximum permitted line restoration time so that the
drive cannot start up again uncontrolled.
A signal is issued in addition when restarting and can be used
to generate an acoustic warning.
Note:
For SINAMICS SM150 in the IGBT and IGCT versions, the
Voltage Sensing Module VSM10 as well as the software func-
tionality is included as standard.
Connections at the VSM10 Voltage Sensing Module
DRIVE-CLiQ interface to connect VSM10
Pin
Signal name
Comment
–X500:
1
TXP
Transmit data +
2
TXN
Transmit data -
3
RXP
Receive data +
4
Reserved
–
5
Reserved
–
6
RXN
Receive data -
7
Reserved
–
8
Reserved
–
A
+ (24 V)
Power supply
B
M (0 V)
Electronic ground
Electronics power supply VSM10
Terminal
Type
Comment
–X524:
+
Electronics power supply
Voltage: 24 V DC
(20.4 ... 28.8 V)
Current consumption:
Max. 0.2 A
Max. current via the jumper
in the connector:
20 A at 55 °C
+
Reserved
M
Electronic ground
M
Electronic ground
Analog inputs/temperature sensor input VSM10
Terminal
Type
Comment
–X520:
1
AI 0+
Inputs can be parameter-
ized via the software,
resolution: 12 bit
2
AI 0-
3
AI 1+
4
AI 1-
5
+Temp
Temperature sensor
connection
KTY84-1C130/PTC
6
-Temp
Phase inputs VSM10
Terminal
Type
Comment
–X522:
1
Phase voltage U
Phase differential voltages
U
UV
and
U
VW
are sensed.
2
Phase voltage V
3
Phase voltage W
© Siemens AG 2012