AOP30 Advanced Operator Panel
An AOP30 Advanced Operator Panel is located in the cabinet door of the converter for the operator control and monitoring as well as for the commissioning.
The AOP30’s two-stage safety concept prevents unintentional or unauthorized changes to settings. Operation of the drive from the operator panel can be disabled by the keyboard lock so that only parameter values and process variables can be displayed on the operator panel. The OFF key is factory-set to “active”, but can be deactivated by the customer. A password can be used to prevent the unauthorized changing of converter parameters.
The user is guided by interactive menus through the drive commissioning screens. When commissioning the drive for the first time, only six motor parameters (which can be found on the motor rating plate) have to be entered on the AOP30. The closed-loop control is then optimized automatically to adapt the converter to the motor.
German, English, French, Italian, Spanish and Chinese are stored on the CU320‑2 Control Unit CompactFlash card as operator panel languages. The desired language must be downloaded to the AOP30 prior to commissioning. In addition to these preinstalled languages, Russian and Portuguese (Brazil) are also available for subsequent installation. Further languages are available on request.
Examples of plain-text displays during various phases of operation are shown below.
The first commissioning is performed via the operator panel.
Only six motor parameters have to be entered:
Power, speed, current, cos φ, voltage and frequency of the motor.
This information can be found on the motor rating plate, and must be entered in the screens on the display by following a short, menu-assisted procedure. The motor cooling method must also be specified.
The next screen contains the parameter values that are used to automatically optimize the control.
During operation, the display shows current data, such as setpoints and actual values as absolute values or it is possible to parameterize up to three process variables as a quasi-analog bar display.
Any alarms which occur are signaled by the flashing of the yellow “ALARM” LED, faults by the lighting up of the red “FAULT” LED. There is also an indication of the cause displayed in plain text on the display’s status line.
Communication with higher-level controller and customer terminal block
A PROFIBUS interface on the CU320‑2 DP Control Unit is provided as standard as the customer interface for the controller.
When using the CU320‑2 PN (PROFINET) Control Unit (option K95), communication is via PROFINET in accordance with the PROFIdrive profile.
The Control Unit can be connected to the higher-level controller via its digital inputs and outputs to exchange digital signals.
The inputs and outputs available as standard can be optionally expanded using a TB30 Terminal Board (option G62) and/or up to two TM31 Terminal Modules (option G60 or G61).
To simplify configuration and commissioning of the drive, the optional TM31 Terminal Module can be preset with a variety of factory settings.
For further information, please refer to the SINAMICS Low Voltage Engineering Manual.
Open-loop and closed-loop control functions
The converter control contains a high-quality sensorless vector control with speed and current control as well as motor and converter protection.