NanoPWM Servo Drives

ACS Motion Control (Israel) has developed a line of switching PWM servo drives that deliver sub-nanometer position jitter performance and nanometer level following error while moving at constant velocity. The new NanoPWM provides quality positioning and tracking performance. Features include: • Availability as part of ACS' MC4U Control Modules.

• Operation from 100 V.

• Up to 15/30A (Cont./Peak) of current.

• An error of ± 10 nm at speeds of 100 mm/sec.

Why Would I Specify?

• The NanoPWM servo drives are suitable for applications such as 450 and 300 mm semiconductor wafer inspection systems.

• The drives provide ultimate standstill jitter and a smooth velocity.

• Using a SPiiPlus controller and NanoPWM drives controlling an XY table with speeds above 1 m/sec, standstill jitter is better than ±0.3 nm.

High-Density Discrete LED

Cree (Durham, NC) has introduced the XLamp XB-H LED, the brightest discrete in Cree’s high-density (HD) class of LEDs, delivering a combination of lumen output and efficacy in a small package. The XB-H joins the XQ-E in the family of HD class discrete LEDs that offer a high optical control factor (OCF). Features include: • >500 lumens at 1.5 A.

• A 2.45 mm2 package.

• Up to 175 lumens-per-watt efficacy at 1W, 25°C.

• Availability in color temperatures ranging from 2700K to

8300K.

• CRI options of 70, 80, 85, and 90.

Why Would I Specify?

• The XLamp uses Cree’s ceramic package technology for long L70 lifetimes at both high temperature and current.

• The XB-H LED delivers up to 499 lumens at 5W, 85°C.

• Compatibility with most optics designed for the Cree XP family of LEDs, allows lighting manufacturers to leverage the optics of existing lighting designs and improve time to market.

www.cree.com

Draw Wire Units
Covering up to 30 M

Leine & Linde (Schaumburg, IL) WDS series draw-wire length measurement units provide up to 30 meters of position data for lifts, factory doors, hoists, and gantry systems.

Features include:
• The ability to
attach to any
encoder with

6 mm shaft and ø50 mm synchro dimensions (typified by the Leine & Linde type 63 flange).

• Measuring lengths ranging from 2. 5 to 15 m.

• >0.02% full scale linearity.

• Extension forces between 10 and 25 N depending upon measuring length.

• An anodized aluminium housing and poly-amide-coated stainless steel draw-wire.

• An operating temperature range from -20º to +80ºC.

Why Would I Specify?

• The WDS draw-wire unit has a robust and compact design that can be used with either absolute or incremental rotary encoders.

• When coupled to a 13 bit multi-turn absolute encoder, the entire measuring range can be covered with a resolution of approximately 0.024 mm (0.001”).

• When the WDS series draw-wire is used with Leine & Linde encoders, absolute position can be provided over Profibus, Profinet, DRIVE-CLiQ, SSI, EnDat, CanOpen, and parallel interfaces.

www.leinelinde.com

The STAC5, from Applied Motion (Watsonville, CA) at Servo2Go, provides up to 5 A per phase from a high bus voltage with current control, delivering high torque over a range of speeds. An anti-resonance algorithm with electronic damping allows for max torque utilization and fast settling times. Features include: • A built-in power supply and regeneration clamp.