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Lenze-AC Tech announces the release of the ISO 13849-1 Safety Circuit for the PositionServo drive. PositionServo drives with suffixes "ES" and "RS" now include a safety circuit that disables the drive output to the motor so that the drive cannot generate torque in the motor.

This safety function, termed "Safe Standstill", meets the requirements of ISO 13849-1 Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design.

Lenze PositionServo 940 941 Servo Drives Distributors

Positionservo Now Available With ISO 13849 Safety Circuit

The PositionServo ISO 13849-1 safety circuit provides a highly reliable disable of the drive. Even in the event of a single fault (single component failure) the ISO 13849-1 safety circuit will still function and disable the drive.

ISO 13849-1 takes up where EN954 was lacking in addressing safety circuits in programmable electronic systems. ISO 13849-1 uses probability to define performance levels in terms of category (structure), mean time to dangerous failure (MTTFd), diagnostic coverage (DC) and common cause failure (CCF). Fully characterizing these four parameters provides a clearer picture of the level of performance required for the safety circuit to disable the device in which it is installed.

"Lenze-AC Tech drives are employed in many types of automated processes worldwide and the safety of both the equipment and personnel is paramount." says Dale Seidlitz, Quality and Safety Manager at Lenze-AC Tech. "Designing our products in accordance with the strict requirements of international safety standards just makes it easier for our global customers to purchase our products, knowing we have designed safety into them."

The ISO 13849 safety circuit provides the customer with one more safeguard to protect his investment in automation equipment and personnel.

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Lenze Drives

Edge Banding is a tricky process. It involves applying a decorative or protective surface to the edges of products made from compressed wood chip and resin board materials. The applied surface material is often wood-effect plastic on a roll that must be handled carefully due to its weak and brittle properties. The edge-banding machine prepares the wood surface, unrolls the edge material, applies the glue and then compresses

Lenze Servo Motors

The Inspection System's speed is truly enhanced by the PositionServo’s Motion-View OnBoard configuration and control software that makes programming and starting the drive simple and fast. Plus the PositionServo provides an extra measure of control when positioning large parts for inspection with its optional ISO 13849-1 Safety Circuit with 'safe torque off' mode (wherein the drive cannot generate torque in the motor).