The Model DR857 Accu-Coder™ is a direct replacement incremental optical encoder with a 3-inch round body and 3/8-inch 303 stainless steel shaft, designed for AMS Controls machines. It features an end-mount 10-pin MS connector, 5V line driver outputs meeting RS-422, and CPR options of 256, 500, 1000, 2000, and 4000. Operating temperature ranges from 0° to 70°C at 256 and 4000 CPR, and 0° to 100°C at intermediate CPRs. Maximum shaft speed is 8000 RPM, with axial and radial load capacity of 80 lb. IP66 sealing, precision ABEC ball bearings, and electrical protections for reverse voltage and output shorts are included. Maximum output frequency is 500 kHz, rise time under 1 microsecond, and quadrature phasing is 90° (±22.5° electrical) up to 6000 CPR.
Designed as a drop-in replacement for the AMS Incremental Optical Encoders, the Model DR857 meets or exceeds all OEM specifications. The Model DR857 is designed to provide precision feedback control on any AMS Controls machine that includes their optical encoder, from metal roll forming to material tracking equipment.
| Encoder Products Company | |
|---|---|
| Product Category | Rotary Encoders |
| Product Number | Model DR857 Accu-Coder® |
| Product Name | Incremental Rotary Encoder |
| Encoder Technology | Optical |
