S.Vasudevan

The productivity of machinery and plants is a decisive factor in competitiveness.

It is the declared aim of engineering companies across the board to continually increase productivity. These companies have made it their objective to eliminate past inadequacies and uncertainties in an ongoing process, and to increase production speed and improve quality.

SEW EURODRIVE offers dynamic synchronous servo drive systems, which meet the

with highly dynamic servomotors.

Kunkel-Wagner India well known for its automatic molding equipments world wide realized the increased productivity in its new high speed vent piercing machine. This machine drills holes in the mould engine castings. With the CM series of synchronous servos from SEW EURODRIVE the demand of high cycle times as high as one hole for every four second with an overall positioning accuracy of 0.1 per cent in a span of 600mm was achieved.

Integrating systems

The drive system supplied by SEWEURODRIVE includes the following:

■ Servo Motor Model – KAF47RCM90S/TF/RH1M/KK

There is one each for X1, Y1 and X2, Y2 coordinates per machine. Movidrive MDX61B inverter with technology version is used together with Profibus interface DFP21B. Ready to use application module ‘Positioning via bus’ integrated in Movidrive performs the complex positioning activity by receiving the coordinates from Profibus. The PLC stores hundred different recipes used by more than 1,000 different variants of moulds. Each Movidrive receives its coordinates from the bus and positions the geared servo motor in the desired position within two seconds. The ramp and speed is dependent on the coordinates and present machine position. In-position feedback is given to PLC for drilling after positioning thus maintaining total cycle time of four seconds per drill. Movidrive inverter with its integrated intelligent IPOSPlus capability was able to perform dynamic and precise positioning tasks each in X and Y axis taking off the complex programming sequences from the high level automation system.

IPOSPlus positioning and sequence control system makes no compromise when it comes

to precision because it uses the exact and highly-dynamic control properties of the

drive inverter. The user can set the programming to either windows programming or high

language. IPOSPlus is fast and flexible. This allows for diverse movement controllers, which can be tailored by the individual requirements of the system. The variety of options available in Movidrive means that the system can be extended at any time in accordance with the modular concept.

Information technology is becoming increasingly important in industrial systems.

Technical product data should be called up at every PC in the company at the touch of button. Horizontal communication between controllers and application takes place through the simple physical medium.

Movidrive offers interface for variety of communication protocol’s in the industry via

PROFIBUS, DeviceNet, CANbus, INTERBUS and ETHERNET fieldbus interface Modbus

TCP, PROFINET IO and Ethernet/IP.

Eight Vent piercing machines of Kunkel-Wagner are working across India in the foundries of Automobile majors for many years and it has been a smooth sailing. The entire period has been without a blemish. Nirupam Goradia, Vice President, Kunkel-Wagner India is quite happy with the advancements and proceedings partnered by SEW EURODRIVE India.