For systems using the GEMMH.R203P32 model, we provide a precise Profibus-DP multiturn absolute encoder 1:1 replacement solution. The replacement encoder replicates the original device’s electrical characteristics, bus interface, mechanical dimensions, and functional features, allowing installation without any hardware or software modifications. This ensures minimal downtime and reliable system performance.
From a technical perspective, GEMMH.R203P32 is a multiturn optical absolute encoder offering singleturn 13-bit resolution and multiturn 16-bit resolution through the Profibus-DP interface. It supports programmable rotation direction (CW/CCW) and parameterization options for steps per turn, number of revolutions, preset, and scaling. Integrated diagnostics continuously monitor position and multiturn operation, with a DUO-LED status indicator for real-time feedback. The encoder powers from 10–30 VDC, includes reverse polarity protection, and initializes in approximately 250 ms.
Mechanically, the encoder features a Ø58 mm stainless steel housing, with hollow shaft options up to Ø14 mm and clamping or synchro flange. It is designed for high reliability in industrial environments, with resistance to vibration, shock, temperature extremes, and humidity, and mechanical/electrical speed limits of 6,000 rpm. Verified functional equivalence and mechanical compatibility make this 1:1 replacement solution a dependable long-term option for the GEMMH.R203P32 model in industrial Profibus-DP applications.
Technical data
| Parameter | Value |
| Voltage supply | 10...30 VDC |
| Reverse polarity protection | Yes |
| Consumption w/o load | ≤100 mA (24 VDC) |
| Initializing time (typ.) | 250 ms after power on |
| Interfaces | Profibus-DPV0, CANopen, DeviceNet |
| User address | Rotary switch in bus cover |
| Steps per turn | 8192 / 13 bit |
| Number of turns | 65536 / 16 bit |
| Absolute accuracy | ±0.025° |
| Sensing method | Optical |
| Code | Binary |
| Code sequence | CW/CCW programmable |
| Interference immunity | DIN EN 61000-6-2 |
| Emitted interference | DIN EN 61000-6-4 |
| Programmable parameters | Steps per revolution, Number of revolutions, Preset, Scaling, Rotational direction |
| Diagnostic functions | Position or parameter error, Multiturn sensing |
| Status indicator | DUO-LED integrated in bus cover |
| Approval | UL approval / E63076 |
| Parameter | Value |
| Housing | ø58 mm |
| Shaft | ø12 mm hollow shaft ø14 mm hollow shaft |
| Protection DIN EN 60529 | IP 64 |
| Operating speed | ≤6000 rpm (mechanical) ≤6000 rpm (electric) |
| Rotor moment of inertia | 20 gcm² |
| Materials | Housing: stainless steel 1.4305 Flange: stainless steel 1.4305 Bus cover: stainless steel 1.4305 |
| Operating temperature | -25...+85 °C -40...+85 °C (optional) |
| Relative humidity | 95 % non-condensing |
| Resistance | DIN EN 60068-2-6 (Vibration 10 g, 16-2000 Hz) DIN EN 60068-2-27 (Shock 200 g, 6 ms) |
| Weight approx. | 1500 g |
