Yaskawa’s specialized CR700 frequency drive series for lifting and handling equipment

Yaskawa presents its innovative CR700 series of AC drives, specially developed for the control of cranes and lifting and transport equipment.

The product family of the latest generation is based on over 30 years of experience of the Japanese manufacturer in the development of flexible, easy to use and sustainable solutions in the segment.

The CR700 frequency converters are the result of significant design improvements and guarantee increased performance with lower initial investment, impressive energy efficiency and minimal maintenance.

Advanced functionality for cranes and hoists

In addition to advanced functionality for lifting and handling equipment, the CR700 inverter series also provides uncompromising safety for the loads being moved through smooth operation and controlled system movement.

The innovative “Master-Follower” position control function is key in applications with multiple motors without mechanical connection to each other that require synchronized and precise control of speed and position.

The CR700 controllers continuously monitor the values ​​of these two critical parameters and compare the set and actual position of the motor shafts, thus facilitating extremely accurate synchronized operation. All control functions are built into the drives, eliminating the need for external controllers. There is also an option to automatically stop the movement in case of unacceptable deviations in the position.

And here are some of the other key features of the CR700 series:

“Anti-sway” function against swinging of the load

• Minimizes accidents and prevents damage due to load swinging;
• Does not require external anti-sway sensors;
• No need for motor encoders;
• Improves crane efficiency and productivity;
• Applicable for long load trajectories and cross travel of the hook.

Specialized function for lighter loads

• Load weight detection;
• Automatic speed adjustment according to weight;
• Shorter cycle times;
• Increased lift efficiency..

Load balance without encoder

• Reducing costs and the risk of encoder failure;
• Preventing operation with an unbalanced load and motor overload;
• Minimizing the mechanical friction and wear of the crane;
• Smooth acceleration and precise work progress.

Rope length monitoring

• Prevents deviations from the permissible working range;
• Monitors the position of the hook and the load at any moment;
• Optimizes safety;
• Tracks whether the restrictions in the work trajectory are respected.

Operator comfort is a priority

The CR700 series ensures an intuitive programming user experience through the drives’ easy-to-interpret and use keypad and tactile interface. Simplified menu navigation and dedicated configuration tips allow for easier and faster setup than ever before.

• Facilitated control via smartphone or tablet via the DriveWizard Mobile mobile application;
• Free drive registration, access to the most up-to-date product information and online storage of parameters and backup data for applications via Yaskawa’s cloud service (Yaskawa Drive Cloud);
• 10-year maintenance-free operation;
• Real Time Clock;
• Automatic parameter backup function;
• Advanced keyboard, easier menu navigation and initial configuration wizard;
• Setting the parameters of up to 4 motors;
• Parameter copy function;
• Micro SD memory for storage;
• High resolution display;
• On request – LCD keyboard with Bluetooth connectivity;
• Predictive maintenance functions (+ maintenance monitoring);
• Monitoring of braking motion;
• Wide range of communication options – Profibus, Profinet, Ethernet/IP, EtherCAT, Mechatrolink, CANopen, Modbus;
• Energy saving possibilities with the regenerative converter D1000 and the regenerative module R1000.

You will learn more about the series here.