Available From Summer’21

 

Enhanced Dedicated Crane Functions

Continuous improvements of the key functions for

crane applications has won the trust of our customers for over 30 years.

Integrated Features and Functions

Anti-sway function 
The CR700 crane drive has a built-in cargo swing suppression function. This special functionality supports the crane operator to prevent uncontrolled load fluctuations during the traverse movement which results in reduced takt times and higher crane efficiency. 

Travel Limit and Contact Position Function

The contact position function prevents the crane against collision during movement stop. In addition, the travel sensor input prevents over-travel or over-winding during regular operation and keeps your operation within safe application limits.

Crane Maintenance Monitors

The CR700 monitors the number of brake commands and the lifetime of drive internal components like IGBT, cooling fan, capacitor or inrush prevention relay.  This information helps you to trigger the right schedule for preventive maintenance of the crane brake and crane drive system.

Synchronized position control 
Synchronized position control protects your crane application against position deviation. This CLV operation of the CR700 eliminates position error which might occur when lifting or lowering a load jointly with two crane drives. Additionally it helps you to eliminate additional external control loops.

High-speed operation at light loads 
The High-speed operation function detects if the application is running with full or light load. In case of light load the drive will increase the frequency reference and operation speed which helps to shorten the cycle time and increasing the crane efficiency.

Load balance function without encoder 
The load balance function without the need of an encoder shares the load impact between two drives.
Your crane application benefits by eliminating the need of encoder installation which also reduces the risk of possible fault caused by encoder failure.

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