When EVM78E-011DRRPBN-1413 is used in place of an Inox-housing version, the replacement is not a communication change but a housing-material and installation-environment check; EncoderWorks can configure a custom compatible replacement solution while preserving the PROFINET device identity, GSDML layout, 13-bit singleturn scaling, 14-bit multiturn range, DR terminal-compartment wiring, clamping flange, and ø10 mm shaft coupling. The key risk is assuming that an aluminum flameproof housing can be applied under the same mechanical, corrosion, and site-exposure conditions as a stainless-steel version. Typical production lead time: 15 working days.
This configuration belongs to the EVM78E PROFINET multiturn absolute encoder family. It combines 13-bit singleturn resolution, 14-bit multiturn range, binary output code, 10–30 VDC supply, flameproof 78 mm housing, aluminum mechanical construction, clamping flange, ø10 mm × 20 mm solid shaft, radial cable exit, and DR terminal compartment with two cable glands. Replacement work should focus on GSDML compatibility, device name, IP address, cyclic data length, preset value, counting direction, IRT/RT cycle timing, cable-gland sealing, shield grounding, and whether the aluminum housing is suitable for the installed hazardous-area environment.
System Limits
The first system limit is PROFINET commissioning. Device name, IP address, GSDML file, update time, IRT or RT class, position data format, preset value, scaling, and counting direction must match the existing PLC project. If the encoder comes online with a different data layout or parameter set, the network may appear healthy while the axis receives an incorrect multiturn position.
The second limit is the aluminum Ex housing. Compared with an Inox version, this configuration should be checked against washdown, chemical exposure, outdoor corrosion risk, impact conditions, and site material requirements. If the housing material is accepted without checking the environment, the electrical replacement may work while the mechanical service life is reduced.
The third limit is the clamping flange and radial DR cable-gland entry. Coupling misalignment, axial preload, radial load, weak cable-gland sealing, or poor shield bonding can create bearing stress, EMC faults, or intermittent PROFINET diagnostics in hazardous-area installations.
Wiring & Installation
Before replacement, record the PLC hardware configuration, GSDML file, device name, IP address, IRT/RT setting, position format, preset value, scaling, counting direction, diagnostics, and terminal-compartment wiring. Confirm the two cable glands, cable diameter, sealing condition, shield termination, grounding path, and whether aluminum housing is permitted by the site specification.
During installation, align the ø10 mm shaft coupling without axial force and keep the clamping flange square to the mounting surface. Route Ethernet and power wiring away from inverter and motor cables, bond the shield with a low-impedance connection, and close the terminal compartment without damaging the sealing path. After startup, verify online status, actual position, multiturn counting, direction, preset response, diagnostics, and repeatability over several machine cycles.
Custom Compatible Solution
EncoderWorks can configure the replacement around the installed PROFINET and mechanical system:
- Match 13-bit singleturn plus 14-bit multiturn binary absolute position behavior
- Preserve PROFINET device identity, GSDML compatibility, IRT/RT cycle timing, scaling, preset, direction, and diagnostics
- Adapt the aluminum flameproof housing, clamping flange, ø10 mm solid shaft, radial exit, and DR terminal compartment with two cable glands
- Review housing-material suitability, cable-gland sealing, shield grounding, terminal mapping, EMC routing, and coupling preload
Key Data
| Item | Data |
|---|---|
| Model | EVM78E-011DRRPBN-1413 |
| Encoder type | Absolute multiturn encoder |
| Interface | PROFINET |
| Resolution | 13-bit singleturn + 14-bit multiturn |
| Overall resolution | 27-bit configured range |
| Output code | Binary |
| Supply voltage | 10–30 VDC |
| Housing | Flameproof, aluminum |
| Flange | Clamping flange |
| Shaft | ø10 mm × 20 mm solid shaft |
| Connection | Radial terminal compartment, 2 cable glands |
| Protection | IP66 |
| Key checks | GSDML, device name, IP, IRT/RT cycle, housing material, cable-gland sealing |
