The Accu-Coder® DR21R is a direct replacement incremental rotary encoder designed to substitute obsolete Renco RCH20D, RHS25D, and RCM21D models on legacy servo motors. It features a 16-pin end mount header, 5 VDC input, TTL line driver output with quadrature and index signals, and an ABS stepped voltage output channel. The encoder operates at up to 300 kHz, supports up to 8 pole commutation, and has a maximum shaft speed of 6000 RPM. It is rated for operating temperatures from 0°C to 115°C with IP50 sealing. Mounting base circles are 1.182", 2.375", or 3.125", with bore sizes of 0.500", 8 mm, or 12 mm. The housing is made of aluminum and zinc alloy, and the unit weighs 3.5 oz typical.
The Accu-Coder® Model DR21R is a highly customized, Direct Replacement Encoder with a unique, OEM-specific ABS stepped voltage output channel. Model DR21R configurations replace select Renco RCH20D and RHS25D models* originally installed on legacy F, H, W, N and HSM servo motor models. An exact mechanical and electrical cross-reference for these obsolete Renco configurations, the DR21R also incorporates EPC’s advanced Opto-ASIC sensing technology, providing superior thermal stability and signal reliability.
| Encoder Products Company | |
|---|---|
| Product Category | Rotary Encoders |
| Product Number | Model DR21R Accu-Coder® |
| Product Name | Incremental Rotary Encoder |
| Encoder Type | Incremental |
