AC Tech Drives Lenze Americas
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Lenze Americas PositionServo drives, Lenze Servo motors and smd Series AC inverter drives have all been utilized in the latest generation, specialty printing machine for corrugated board.

Cardboard material is auto-fed into the printing machine at high speed and passed through five sets of rollers positioned above and below the board.

The rollers at the top deposit the printing ink, one color at a time. The lower set of rollers control the pressure exerted on the material as it is passed through the printing process.

Lenze PositionServo 940 Servo Drives Distributors

PostionServo Simplifies Corrugated Board Printing

The thickness of the material ranges from 1 to 3mm for solid board and 1.3 to 8mm for corrugated board, for both types of card the position of the roller is critical to the print finish and smooth throughput.

Four PositionServo drives and Lenze Servo motors are used. The first two drop the roller's position and allow a new sheet to be fed in; the second pair is used for fine control while the machine is actually printing.

The PositionServo's 64-bit processing and two microsecond reaction time allow tiny, fast incremental position changes during printing. This creates a displacement effect, compressing the card as it passes through, creating smooth surface finishes, ironing out any material inconsistencies in the raw board, and ensuring a consistent print finish.

The entire process is PLC controlled and high-resolution linear encoders supply positional feedback; hence the servos have a simple, but high accuracy task to perform. Lenze Americas SMD 15kW AC inverter drives are also used to control the drying fans that make sure the ink is fixed after the application of each print color.

PositionServo Benefits:

  • Tight positioning control
  • Linear encoder compatibilty
  • Simple set-up and programming
  • Global sales and technical support
  • Lenze Americas, one source for servo drives, servo motors and VFDs
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Lenze Software

The PLC Designer and L-force Engineer share one common licence. Any customers ordering one of the two products will therefore automatically also receive a license for the other product. The license key, which is required for installation of the software, is the same for both products. Every L-force controller is also supplied with a CD which, among other things, includes the PLC Designer. This version is a demo version which can be used for 30 days.

Lenze Motors

The MH Series feature B3, B5 and B14 designs and dimensions standardised in line with IEC 60072-1 and/or DIN EN 50347 which makes then suitable for universal use. The thermal sensors integrated as standard allow for permanent temperature monitoring and are coordinated to the motor winding's temperature class F (155 °C). The motors of the basic version are adapted to ambient conditions by IP55 degree of protection.