Elcis encoders and position transducers

I/W59C incremental hollow shaft encoders for motors

I/W59C is an incremental optical encoder with a hollow shaft designed for direct mounting on electric motors and drives. Featuring an integrated flexible stator coupling, it absorbs axial play and radial shaft runout.

Resolution ranges from 1 to 10,000 pulses per revolution with hollow shaft bores up to 15 mm. Output electronics include TTL Line Driver (RS-422) and HTL Push-Pull with complementary channels and zero reference pulse.

When replacing existing units, verify the bore diameter, pulse count, supply voltage, and cable outlet orientation. Ensure proper mechanical alignment to avoid excessive bearing wear during long-term continuous motor operation.

I/115 heavy-duty industrial incremental encoders

The I/115 and I/M115C series represent heavy-duty incremental rotary encoders housed in rugged 115 mm metal bodies for harsh industrial environments such as steel rolling mills, paper processing and heavy machinery.

They tolerate heavy shaft loads up to 300 N, offering resolutions up to 3,600 to 50,000 pulses per revolution. Ingress protection reaches IP65/IP66 with heavy-duty bearing assemblies.

When replacing units, verify mechanical flange configurations, solid shaft diameters (10 mm or 12 mm), connector pinouts, and frequency limits. Heavy housings ensure signal stability despite severe plant vibrations.

I/58 and 58ES standard industrial incremental encoders

The I/58 and 58ES family represents the classic European 58 mm diameter industrial optical encoder for CNC machine tools, automation machinery and positioning stages.

Offered with solid shafts (clamping or servo flanges) or blind hollow shafts, it covers pulse counts up to 1,800,000 ppr through internal electronic interpolation. Precision ABEC 5 stainless steel bearings ensure low friction and extended service life.

Verify centering boss diameter, shaft dimensions and supply voltage compatibility prior to installation. Shielded twisted pairs must be maintained to prevent high-frequency noise from corrupting pulse trains.

A/58 absolute single-turn and multi-turn rotary encoders

A/58 absolute rotary encoders retain true position data upon power loss, providing single-turn resolutions up to 16 bits (65,536 positions/turn) and multi-turn counts up to 14 bits (16,384 revolutions) via mechanical gear trains.

Available interfaces include synchronous serial (SSI), parallel Gray/Binary code, and analog 4-20 mA or 0-10 V outputs. When commissioning replacements, verify data protocol settings, clock rates, code format, and zero-preset terminal wiring to align the zero angle with machine reference.

Solid optical assemblies ensure absolute tracking without battery backup.

Fieldbus absolute encoders for Profinet, Profibus, EtherCAT and CANopen

Elcis fieldbus and Industrial Ethernet absolute encoders integrate directly into modern distributed architectures via PROFINET, PROFIBUS-DP, EtherCAT, CANopen and DeviceNet.

Equipped with dual M12 connectors for daisy-chain line or ring topologies, they support on-the-fly parameterization of resolution, total measuring range and preset values via standard device description files.

When replacing a damaged encoder, confirm the network profile, baud rate switches, and controller hardware configuration. Device diagnostic LEDs accelerate on-site link and fault troubleshooting.

Magnetic rotary encoders and non-contact angle sensors

Elcis magnetic encoders (starting from compact Ø 27 mm housings) are engineered for operating conditions where optical code discs are vulnerable to condensation, oil mist, washdown and mechanical shocks.

Available in bearing-supported or contactless split architectures, they deliver incremental resolutions from 1 to 20,000 ppr and absolute SSI or analog outputs. With full resin potting achieving IP68 protection, they are ideal for mobile machinery, food processing and woodworking equipment.

Mechanical wear is eliminated in contactless configurations.

Linear transducers: optical scales, rack-and-pinion and draw-wire

Elcis linear transducers measure axes and linear stroke in machine tools, gantries and automation equipment.

The line includes RV18/RV20 glass optical scales (up to 2,440 mm, resolution to 0.5 µm), pre-assembled CR80/CR85 rack-and-pinion systems for long measurement lengths up to 50 meters, and EF draw-wire transducers spanning strokes up to 60 meters.

Extruded aluminum protective housings with flexible sealing lips protect measuring elements from coolant spray and chips. Calibration certificates accompany precision optical scale assemblies.

Couplings, mounting flanges, cables and industrial connectors

Original Elcis mounting and interconnection accessories ensure long-term measuring reliability. The scope includes zero-backlash metallic bellows couplings, mounting brackets, adapter flanges, and shielded multi-conductor cables with low capacitance for TTL/HTL/SSI lines.

High-grade IP67/IP68 industrial connectors (M12, M23, and MIL-spec bayonet plugs) provide secure connections. Using appropriate flexible couplings prevents premature bearing failure caused by radial and angular shaft misalignment. Grounding rings and clamps preserve shielding integrity.

Encoder troubleshooting, signal diagnostics and replacement workflow

When a CNC machine reports contouring deviations or encoder fault alarms, systematic signal diagnostics will pinpoint whether the failure lies in the optical disc, output line driver, or cable harness.

Verify supply voltage at the sensor, probe quadrature outputs A and B with an oscilloscope for proper 90-degree phase displacement, and confirm complementary channels.

When replacing obsolete models, our engineering team confirms mechanical dimensions, electrical interfaces, and parameter equivalence. Structured bench tests avoid recurrent machine downtime.

Wiring schematics, signal interfaces and pinout specifications

Electrical interfacing specifications for Elcis rotary encoders cover signal conditioning, connector pin assignments and noise immunity across extended transmission lines.

The standard output types include differential TTL line driver (RS-422) for long runs up to 100 meters, push-pull HTL for direct PLC digital input interfaces, and 1 Vpp sinusoidal signals for high-resolution drive interpolation.

Proper single-point shield termination via 360-degree EMC cable clamps prevents ground loops and electrical interference. Matching termination resistors absorb line reflections on high-frequency channels.

Encoder selection procedure and mechanical mounting criteria

Selecting the optimal Elcis encoder configuration for machinery retrofits involves mechanical kinematics, counting frequency limits, and environmental protection ratings. Solid shaft variants require flexible bellows couplings, whereas hollow bore models utilize anti-rotation stator brackets.

Calculate pulse output frequency using operating RPM and target resolution to verify PLC counter bandwidth. Where high cutting fluid spray is present, select IP66 housings with viton radial shaft seals. Consult our application specialists with motor drawings for complete validation.