For applications using the GEMMW.A203P32 model, we offer a professional Profibus-DP multiturn absolute encoder customized replacement solution. The replacement encoder is designed to match the original in electrical interface, bus communication, resolution, and functional performance, allowing direct installation without changes to PLC mapping, I/O configuration, or control software. This ensures reliable and predictable operation in industrial automation and heavy machinery environments.
Technically, GEMMW.A203P32 is a multiturn optical absolute encoder with singleturn 13-bit resolution and multiturn 14-bit resolution. Position data is transmitted via a Profibus-DP interface, supporting deterministic communication and programmable rotational direction (CW/CCW). The encoder features integrated diagnostic functions to detect position or parameter errors and monitors multiturn sensing for safe operation. Programmable parameters include steps per revolution, number of revolutions, preset values, scaling, and rotational direction. Typical initialization time is 250 ms after power-on, and the device is equipped with reverse polarity protection and low-no-load current (<100 mA at 24 V DC).


Mechanically, the replacement encoder has a Ø58 mm stainless steel housing, with clamping or synchro flange options and shafts of Ø10 mm or Ø6 mm depending on flange type. It offers high mechanical resilience, with a maximum speed of 10,000 rpm (mechanical) / 6,000 rpm (electrical), low starting torque, and defined axial and radial shaft load limits. The device is designed for demanding industrial environments, featuring IP67 protection, vibration and shock resistance, and operating temperature from -25…+85 °C (optional -40…+85 °C). With verified electrical and mechanical compatibility, this replacement provides a dependable solution for systems requiring Profibus-DP multiturn absolute feedback.
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 (type-specific) |
| 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 |
| Approval | UL approval / E63076 |
| Parameter | Value |
| Housing | ø58 mm |
| Shaft | ø10 mm (clamping flange) ø6 mm (synchro flange) |
| Flange | Clamping or synchro flange |
| Protection DIN EN 60529 | IP 67 |
| Operating speed | ≤10000 rpm (mechanical) ≤6000 rpm (electric) |
| Starting torque | ≤0.03 Nm IP 67 |
| Rotor moment of inertia | 20 gcm² |
| Admitted shaft load | ≤20 N axial ≤40 N radial |
| 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. | 900 g |

