SIEMENS
SINAMICS GM150
Medium-Voltage Converter
SINAMICS GM150 in IGBT version
2/7
Siemens D 12 · 2012
2
Software and protection functions
AOP30 operator panel
The AOP30 operator panel is fitted into the cabinet door of
the SINAMICS GM150 to enable operation, monitoring and
commissioning.
It has the following features and characteristics:
•
Graphical LCD display with backlighting for plain-text display
and a bar display of process variables
•
LEDs for displaying the operational status
•
Help function describing causes of and remedies for faults
and alarms
•
Membrane keyboard with keypad for operational control of a
drive
•
Local/remote switchover to select the operator control location
(priority assigned to operator panel or customer's terminal
strip/PROFIBUS)
•
Numeric keypad for input of setpoint or parameter values
•
Function keys for prompted navigation in the menu
•
Two-stage safety strategy to protect against accidental or un-
authorized changes to settings. The keyboard lock disables
operation of the drive from the operator panel, so that only
parameter values and process variables can be displayed.
A password can be used to prevent the unauthorized modifi-
cation of converter parameters.
The operator panel languages – English, German, Spanish
and Chinese – are stored on the CompactFlash card of the
Control Unit.
SINAMICS GM150
in IGBT version
Description
Detecting the actual motor speed
(option)
The SMC30 encoder module can be used to record the actual motor speed. The signals from the rotary pulse
encoder are converted here and made available to the closed-loop control for evaluation via the DRIVE-CLiQ
interface.
Operator protection
The cabinet doors of the power units are fitted with electromagnetic locks. This prevents the cabinet doors
being opened while hazardous voltages are connected inside the cabinet.
EMERGENCY-OFF button
The converters are equipped as standard with an EMERGENCY-OFF button with protective collar which is
fitted in the cabinet door. The contacts of the button are connected in parallel to the terminal strip so they can
be integrated in a protection concept on the plant side. EMERGENCY-OFF stop category 0 is set as standard
for an uncontrolled shutdown (DIN EN 60204-1/VDE 0113-1 (IEC 60204-1)). The function includes voltage
disconnection of the converter output through the circuit breaker. The motor coasts in the process.
EMERGENCY-STOP category 1 is optionally available for a controlled shutdown (option
L60
).
Insulation monitoring
The converters feature insulation monitoring of the complete electrical circuit from the secondary side of the
transformer to the stator windings of the motor.
Monitoring of the peripherals
An extensive package of options for I/O monitoring (from the transformer and the motor through to the
auxiliaries) is available.
Thermal overload protection
An alarm message is issued first when the overtemperature threshold is reached. If the temperature rises
further, either a shutdown is carried out or automatic influencing of the output current so that a reduction in the
thermal load is achieved. Following elimination of the cause of the fault (e.g. improvement in the ventilation),
the original operating values are automatically resumed.
For instance, for air-cooled converters and when filter mats are used, the amount of pollution of the filter mats
is monitored by measuring the differential pressure which is then signaled. In the case of water-cooled
converters, the water temperature and flow rate are recorded at several points in the cooling circuit and
evaluated. Extensive self-diagnostic functions signal faults and therefore protect the converter.
Grounding switch (option)
If grounding on the infeed or motor side is required for safety and protection reasons, a motorized grounding
switch can be ordered.
For safety reasons, the converter controller locks these grounding switches against activation while voltage is
still present. The control is integrated into the protection and monitoring chain of the converter. The grounding
switches are inserted automatically when the standard grounding switches of the DC link are inserted.
Capacitor tripping device (option)
For applications in which the existing circuit breaker has no undervoltage coil and cannot be retrofitted there
are capacitor tripping devices for 110 V to 120 V DC and for 220 V DC.
The capacitor tripping device ensures that the circuit breaker on the plant side can still be reliably opened
even if there is a power failure or the normal OFF command is not effective, e.g. because of a wire break.
© Siemens AG 2012