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Omron E6B2-CWZ6C Rotary Encoder 600P/R DC5-24V NPN Open Collector Φ40mm — front view

Omron E6B2-CWZ6C Incremental Rotary Encoder 600 P/R NPN Open Collector

SKU: E6B2-CWZ6C

USD 42.00

Omron E6B2-CWZ6C φ40 mm incremental rotary encoder, 600 P/R, DC5–24 V, NPN open-collector output with A/B/Z phases for motor-speed and position feedback.

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Product Overview

The Omron E6B2-CWZ6C is a 40 mm diameter incremental rotary encoder from the E6B2-C family, designed for reliable speed and position feedback on industrial automation equipment. It provides 600 pulses per revolution across three output phases (A, B, Z) with NPN open-collector outputs, and operates from a wide DC 5–24 V supply.

The quadrature A and B phases deliver direction-sensing and 4× resolution (2400 counts/rev) when decoded by an up/down counter, while the Z (index) pulse provides one marker per revolution for homing and origin positioning. Maximum response frequency is 100 kHz and maximum rotational speed is 6000 rpm, covering most conveyor, spindle, and servo-feedback applications.

Protection features include load short-circuit protection and reverse-polarity protection on the power supply. The pre-wired 0.5 m cable exits axially; longer 2 m variants are available in the same family for distributed-cabinet installations. For applications requiring line-driver outputs or higher noise immunity, see the E6C2-C or E6CP family.

Key Features

  • φ40 mm body, incremental rotary encoder
  • 600 pulses per revolution (2400 counts/rev with 4× decoding)
  • Three-phase output: A, B (quadrature) plus Z (index)
  • NPN open-collector output, DC 5–24 V ±10% supply
  • Maximum response frequency 100 kHz
  • Maximum rotational speed 6000 rpm
  • Load short-circuit and reverse-polarity protection
  • Pre-wired 0.5 m cable, axial exit
  • SKU: E6B2-CWZ6C
  • Series: E6B2-C
  • Voltage: 24 V

Best-Fit Applications

  • Servo motor and stepper drive position feedback
  • Conveyor speed monitoring and cut-to-length control
  • CNC machine tool axis feedback
  • Packaging machinery registration-mark timing
  • Textile and printing equipment synchronisation
  • Robotic axis position verification
  • General industrial counting and rate measurement

Buying Checklist

  • Verify PLC high-speed counter input type — NPN open-collector outputs require pull-up resistors or an NPN-compatible input card.
  • For longer cable runs (>10 m) or noisy environments, specify the E6C2-C line-driver variant instead.
  • Confirm shaft load ratings (30 N radial, 20 N axial) for your coupling selection.
  • For 1000 / 1024 / 2000 P/R variants in the same family, order the E6B2-CWZ6C 1000P/R, E6B2-CWZ6C 1024P/R, etc.
  • Add the E69-DF5 line-receiver if wiring to a differential-input motion controller.

Technical Specifications

Model E6B2-CWZ6C
Series E6B2-C
Type Incremental rotary encoder
Body Diameter φ40 mm
Shaft Diameter φ6 mm
Resolution 600 P/R (pulses per revolution)
Output Phases A, B (quadrature) and Z (index)
Output Type NPN open collector
Supply Voltage DC 5–24 V ±10%
Current Consumption 80 mA max (at 24 VDC)
Max Response Frequency 100 kHz
Max Rotational Speed 6000 rpm
Starting Torque 0.9 mN·m max
Moment of Inertia 1 × 10⁻⁶ kg·m² max
Shaft Load (Radial) 30 N max
Shaft Load (Axial) 20 N max
Cable Pre-wired 0.5 m, axial exit
Protection Rating IP50
Operating Temperature −10 °C to +70 °C

FAQ for E6B2-CWZ6C

What cable length and connector options exist for the E6B2-CWZ6C?
Standard cable is 0.5 m pre-wired with axial exit. 2 m variants are available in the same family (suffix "2M"). For longer cable runs, use a shielded extension cable and keep wiring at least 200 mm away from VFD or power cables. Line-driver outputs (E6C2-C family) are recommended for cable runs over 10 m.
How do I wire the E6B2-CWZ6C to a PLC high-speed counter?
Brown to DC+ (5–24 V), blue to DC− (0 V), black to high-speed counter input A, white to high-speed counter input B, orange to input Z. Add pull-up resistors (2.2 kΩ typical) on A and B if your PLC requires them. Shield the cable and ground the shield at the controller end only.
Can this encoder be used for both speed and position feedback?
Yes. The A/B quadrature channels give direction and 4× resolution (2400 counts/rev at 600 P/R) when read by an up/down counter. The Z (index) channel provides one pulse per revolution for homing, origin reset, and slip-detection on conveyors.
What resolutions are available in the E6B2-C family?
The E6B2-CWZ6C family offers 13 resolution options from 100 to 2000 P/R: 100, 200, 300, 360, 400, 500, 600, 1000, 1024, 1200, 1500, 1800, and 2000 P/R. Select by SKU suffix — for example E6B2-CWZ6C 1000P/R for 1000 P/R or E6B2-CWZ6C 2000P/R for 2000 P/R.

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