EncoderWorks develops the EVS78E-012KRRPBI-0016 custom compatible replacement solution around explosion-proof PROFINET singleturn feedback where 16-bit position data, RT/IRT timing, Ethernet Rx/Tx terminal mapping, KR radial sealing, INOX grounding, and Ø10 mm servo-flange alignment must remain matched to the installed PLC project. The failure boundary is not only the 10–30 VDC supply, but also device identity, 100 MBit/s PROFINET communication, binary singleturn data length, Rx-/Tx-/Rx+/Tx+ polarity, shield continuity, coupling centering, and explosion-proof certificate scope. Typical production lead time: 15 working days.
This model is used where the controller reads absolute singleturn position over a PROFINET network from a solid-shaft encoder with a radial KR terminal compartment and stainless housing. A compatible replacement must preserve the 16-bit singleturn position structure, binary code behavior, Ethernet terminal assignment, PLC project recognition, Ø10 mm shaft interface, servo-flange geometry, housing bonding, and hazardous-area installation requirement.
System Limits
The first system boundary is the PROFINET project and 16-bit singleturn data structure. EVS78E-012KRRPBI-0016 must appear to the PLC as the correct PROFINET singleturn encoder device with matching device identity, network configuration, RT/IRT timing expectation, counting direction, diagnostic behavior, and 16-bit binary position length. If the replacement is supplied as a multiturn device, configured with a different data length, assigned with incompatible device identity, or commissioned with changed direction behavior, the network may still detect an Ethernet device while the axis reports the wrong angle, unstable diagnostics, incorrect direction, or commissioning mismatch.
The second boundary is the KR radial terminal compartment and Ø10 mm servo-flange installation. Terminal 1 GND, terminal 2 +Ub, terminal 5 Rx-, terminal 6 Tx-, terminal 7 Rx+, terminal 8 Tx+, grounding terminal, shield path, cable gland, stopping plug, radial cable clearance, and stainless housing bonding must match the installed wiring. A correct PROFINET encoder can still fail if Rx/Tx pairs are crossed, polarity is reversed, unused terminals are treated as active signals, the shield is terminated with high impedance, or the KR sealing boundary is not preserved. Mechanically, the Ø10 mm × 20 mm solid shaft, servo flange, coupling centering, axial load, radial load, and shaft-load boundary must be checked together.
Wiring & Installation
Before replacement, confirm the full installed model code, PROFINET device identity requirement, PLC project configuration, 16-bit singleturn structure, RT/IRT timing requirement, counting direction, diagnostic mapping, KR terminal layout, radial cable-entry direction, cable-gland condition, stopping-plug condition, INOX housing requirement, servo-flange geometry, and Ø10 mm shaft interface. This EVS78E singleturn version should not be inferred from ESM78E or EVM78E multiturn variants because the process-data length, mechanical interface, and commissioning boundary are different.
During installation, verify supply wiring, GND, Rx-/Tx-/Rx+/Tx+ terminal assignment, grounding terminal, shield continuity, and Ethernet cable routing before powering the system. Keep PROFINET wiring away from motor and drive cables, avoid cable kinking or tensile load at the gland, and maintain low-impedance bonding through the stainless terminal compartment. The servo flange should seat concentrically, and the coupling should not force the Ø10 mm shaft off center. Explosion-proof suitability must be confirmed against the installed hazardous-area requirement and certificate scope before shipment.
Custom Compatible Solution
- Match PROFINET communication behavior, 16-bit singleturn feedback, binary code, RT/IRT timing expectation, and PLC project requirements
- Preserve GND, +Ub, Rx-, Tx-, Rx+, Tx+, grounding terminal, shield continuity, KR cable-gland sealing, and stopping-plug boundary
- Adapt the Ø10 mm × 20 mm solid shaft, servo flange, KR radial terminal compartment, INOX stainless housing, and IP66 sealing boundary
- Review device identity, 16-bit process-data length, Ethernet terminal mapping, servo-flange centering, housing bonding, hazardous-area certificate scope, and commissioning requirements before shipment
Key Data
| Item | Data |
|---|---|
| Model | EVS78E-012KRRPBI-0016 |
| Encoder type | Explosion-proof singleturn absolute rotary encoder |
| Interface | PROFINET |
| Transmission rate | 100 MBit/s |
| Timing boundary | RT / IRT timing requires PLC project confirmation |
| Supply voltage | 10–30 VDC |
| Output code | Binary |
| Singleturn resolution | 16 bit |
| Multiturn resolution | Not applicable |
| Total position structure | 16-bit absolute singleturn data |
| Connection | KR, terminal compartment with 1 cable gland and 1 stopping plug |
| Cable exit | R, radial |
| Ethernet terminal boundary | Rx-, Tx-, Rx+, Tx+ mapping requires confirmation before replacement |
| Shaft / flange | Ø10 mm × 20 mm solid shaft, servo flange |
| Housing material | I, INOX stainless steel |
| Protection class | IP66 sealing boundary requires confirmation against installed version |
| Hazardous-area boundary | ATEX / IECEx explosion-proof compliance requires confirmation against installed certificate scope |
| Key replacement checks | Device identity, PLC project match, RT/IRT timing, 16-bit data length, Rx/Tx terminal mapping, shield continuity, KR sealing, INOX grounding, Ø10 mm servo-flange alignment |
