The Model 771 is a rugged incremental encoder designed for direct mounting on NEMA C-Face motors, featuring a thru-bore design compatible with motor face sizes 182TC to 256TC and a maximum bore size of 1.875 inches. It uses an all-metal housing and incorporates Opto-ASIC technology for noise immunity, with resolutions up to 4096 CPR and output formats including open collector, pull-up, push-pull, and line driver. The encoder supports shaft speeds up to 3500 RPM (6000 RPM for bore diameters of 1.125 in and smaller), operates from 4.75 to 28 VDC depending on temperature, and is rated IP65 when equipped with the C-Face gasket kit. Electrical outputs comply with RS-422 standards for line driver variants, and the unit meets EMI standards including BS EN61000-4-2, IEC801-3, and BS EN61000-6-2. Its housing style A fully encloses the motor shaft, while style B provides a thru-bore version with IP50 sealing.
The Model 771 C-Face encoder is a rugged, high resolution encoder designed to mount directly on NEMA C-Face motors. Both sides of the encoder are C-Face mounts, allowing additional C-Face devices to be easily mounted. Many competitive C-Face units are kit type encoders, but the Model 771 contains precision bearings and an internal flex mount that virtually eliminates encoder failures and inaccuracies induced by motor shaft runout or axial endplay. The advanced Opto-ASIC design provides superior noise immunity necessary for many industrial applications. This encoder is ideal for applications using induction motors and flux vector control. A thru-bore design allows fast and simple mounting of the encoder directly to the accessory shaft or drive shaft of a motor using a NEMA standard motor face (sizes 182TC to 256TC). The tough, all-metal housing resists the vibration and hazards of an industrial environment.
| Encoder Products Company | |
|---|---|
| Product Category | Rotary Encoders |
| Product Number | Model 771 NEMA Motor Mount Accu-Coder® |
| Product Name | Incremental Rotary Encoder |
| Encoder Type | Incremental |
