Encoder aids motor accuracy
A
PennEngineering Motion Technologies - Europe product story
Edited by the Engineeringtalk editorial team
Jan 7, 2003
A new 35mm encoder developed exclusively for use with Pittman Lo-Cog brush-commutated and Elcom brushless DC motors has been introduced by Pittman.
A new 35mm ROSE (reflective optical sensing) encoder developed exclusively for use with Pittman Lo-Cog brush-commutated and Elcom brushless DC motors has been introduced by Pittman.
Instead of requiring discrete modules for individual line-count applications, the new encoder provides an unprecedented capability to achieve multiple line counts using only one module.
This new 35mm ROSE encoder for Pittman DC motors features an innovative PC board-based modular design and multi-tracked code discs to enable the widest range of resolutions (192, 200, 250, 256, 360, 400, 500 and 512 counts per revolution) using a minimum number of parts.
The PC board consists entirely of surface-mount components, which promotes flexibility in low tooling costs and quick turnaround to accommodate custom control electronics.
The new encoder is an incremental, noncontact rotary-to-digital feedback device translating real-time shaft angle, speed, and direction of rotation to TTL-compatible outputs.
Outputs are two-channel, in quadrature, with medium resolution encoding.
Signal conditioning options (all onboard) include an RS422 high-speed differential line driver, pull-up resistors, and additional filtering capacitors.
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