The figure below shows the hardware configuration based on the example of an industry overhead bridge crane (OHBC).

Example configuration for industry cranes by using SIMOCRANE Basic Technology V5.0 (Basic License)

The figure below shows the hardware configuration based on the example of a container quay crane. The prepared software architecture allows the easy integration of SIMOCRANE Sway Control, which is described in the SIMOCRANE Advanced Technology section.西门子触摸屏广州代理商

Example configuration for a container quay cranes by using SIMOCRANE Basic Technology V5.0 (Advanced License)

The SIMOCRANE Basic Technology V5.0 package provides not only the core functionalities in form of a product library, but also 2 application libraries which can be adapted by the users. The former is optimized for crane‑specific motion control. The later are mainly applied for sequential control inside the SIMATIC S7‑1500, the communication between PLC and drive, the monitoring as well as the switchover inside the SINAMICS S120. The package also contains standard applications for STS crane, GSU crane and OHBC crane separately.
The modular software concept based on each main drive of the crane construction (e.g. hoist) makes it easier to build up different applications according to the crane type. The software structure is shown for a coil crane and a container quay crane in the following examples. The motion control of each main drive is preconfigured by using the corresponding core function blocks from the product library in SINAMICS. Coordinating and monitoring the main drives are realized in the application by using 2 application libraries in both SIMATIC and SINAMICS.

Each function module (e.g. hoist) has 3 DCC charts separately in fast/middle/slow cycle time in SINAMICS for processing the setpoint in consideration of the related crane technology. Furthermore, it has one function block instance in the SIMATIC PLC for executing logic control, mode management and communication. The communication between the SIMATIC S7‑1500 and SINAMICS S120 can be carried out by the standardized interface via PROFINET or PROFIBUS for each main drive. All function modules have been designed in the same structure.西门子触摸屏广州代理商

The standard application is created for the most commonly used crane types. These are "container quay crane", "grab ship unloader" and "overhead bridge crane", which are fit for "ready‑to‑run" users to set parameters only. SIMOCRANE Basic Technology V5.0 additionally provides a Configurator and some copy‑templates for "ready‑to‑apply" users to build up their individual projects with expansions and adaptations in specific crane applications by a few mouse clicks.西门子触摸屏广州代理商

SIMOCRANE Basic Technology V5.0 is designed for the TIA world. It replaces not only the SIMOCRANE Basic Technology V3.0 but also the SIMOCRANE Drive‑Based Technology V1.0 SP2 HF1. Customers can select the optimal range of functions depending on the application requirements by ordering different licenses.西门子触摸屏广州代理商

Software structure for an industrial overhead bridge crane

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Software structure for a container quay crane

No.FunctionBrief descriptionAdvanced LicenseBasic License1Load‑dependent field weakeningUsing the DCC block, a supplementary speed setpoint is calculated during the acceleration phase depending on the load. The hoist gear speeds up to its maximum speed in one go. This additional speed above the rated speed makes it possible to always operate partial loads at peak performance, which increases the crane's throughput significantly.This DCC block provides the auto‑tuning function for commissioning to optimize parameters automatically.✓ 2Simplified load‑dependent field weakeningA supplementary speed setpoint is calculated during constant movement. The hoist speeds up after the measurement. This function makes it possible to always operate partial loads at peak performance, which increases the crane's productivity.✓✓3Prelimit switch (selectable limiting)The velocity of the drive can be limited using the DCC block when a predefined prelimit switch is reached.✓✓4Start pulseUsing the DCC block, "load sag" is prevented at starting the hoist gear with a suspended load.✓✓5Actual position and velocityUsing the DCC block, the actual motor speed is converted to actual velocity and integrated to actual position. These values are permanently saved in case of power off. The actual position can be newly referenced at standstill and on the fly.✓✓6Target controlThis DCC block makes all main drives on cranes positioning exactly, especially suitable for systems that tend to be subject to mechanical vibration, such as trolleys on STS cranes. If required, a creep speed can be selected to move further after arriving the target position.✓✓7Slack rope controlThis DCC block prevents a slack rope during a grab is closing in the goods being handled. It ensures the grab a controlled digging into the goods therefore reaching maximum filling.✓ 8Current equalization controlWhen raising and lowering a closed grab, the tension levels in the holding and the closing gear should be approximately the same. Using this DCC block the required total hoisting power can be optimally distributed across the two drives. The load distribution between the master drive and the slave drive can be set on demand.✓ 9Synchronization controlThis DCC block enables both speed or position synchronization between a master drive and several slave drives by correcting any offset. If a specified offset is required, it can be created and kept.✓ 10Master controllerUsing the DCC block, the scaling of the master controller can be set depending on the speed setpoint, especially at lower speed, which makes it easier for a crane operator to have a fine sensitivity in manual positioning.✓✓11Continuous load measurementThis DCC block is required for grab cranes like dredger, whose grab is not visible. A continuous load measurement is carried out to show the crane driver the grab filling level and the message "Grab is touchdown".This DCC block provides the auto‑tuning function for commissioning to optimize parameters automatically.✓ 12Grab ControlThis DCC block is responsible for the closing gear to close and open the grab by exact positioning. Furthermore, the synchronous operation between the holding gear and the closing gear is possible when hoisting and lowering the grab. For a polyp grab, it can be used to detect bulky load material.✓ 13Push button controllerUsing this DCC block it is possible for a simple push button controller to generate a fixed or changeable setpoint.✓✓14Master‑slave closed‑loop torque controlMaster‑slave operation is used if 2 motors are connected to a common shaft. The master operates either closed‑loop position controlled or closed‑loop speed controlled depending on the operating mode. The slave only operates closed‑loop torque controlled. The master sends the torque as torque setpoint to the slave.✓✓15Customized monitoringThis function can be applied for any customized monitoring function inside SINAMICS.✓✓16Brake testThe mechanical brake function (e.g. hoist) should be regularly checked using this function. To do this, the axis moves against the closed brake with a certain torque setpoint in order to check the braking capability of the brake.✓✓17Ramp function generator with conter and zero‑crossing functionThis function is adapted for crane‑specific requirements, e.g. without begin or end rounding at conter or zero‑crossing movement.✓✓18Torque provingIf required, the torque can be double checked with both a saved value from "Start Pulse" and a preset minimum value before opening the brake.✓✓19InchingThis smart function enables the drive axis to move a predefined distance by activating the inching operating mode each time.✓✓20Tandem operationTandem operation is an extension of the synchronization control. Synchronous operation takes place between 2 groups. In each group, 2 drives can be coupled in master‑slave closed‑loop torque control or also in synchronous operation. The function is suitable to address applications for both harbor cranes, such as a double spreader container crane or large ship unloaders with 4 drum grabs, as well as industrial cranes with several hoists and trolleys.✓ 

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