Control Techniques 095U3D300CFFCB Encoder Feedback Unit

Module Feature

095U3D300CFFCB (part number 100190) is a high precision optical rotary encoder manufactured by Control Techniques,designed for servo motor position feedback. It adopts non-contact optical grating sensing to convert shaft rotation into digital quadrature signals. Differential line-driver A/B/Z phase output greatly improves noise immunity for long cable runs inside industrial test racks. The metal shield housing suppresses electromagnetic interference from servo power circuits. Built-in BIT diagnostic continuously monitors LED light source and signal receive path integrity; fault status can be read via drive register. Rugged mechanical structure with reinforced bearing assembly,shock and vibration screened for power plant cabinet environment,widely used in servo axis control,aerospace ground test bench and hardware-in-loop real-time simulation chassis.

Working principle

When servo motor shaft rotates, the coupled grating disc turns synchronously. Infrared LED passes through the grating slits and is captured by photodiode array to generate A/B quadrature pulses and Z reference index pulse. Differential drivers transmit these signals to Control Techniques servo drive feedback port. BIT circuit checks optical signal amplitude and power rail condition to report hardware fault. Metal shield prevents EMI from high-current power cables corrupting position signals.

Onboard components

Infrared LED light source,precision optical grating disc,photodiode receiver array,RS-422 differential line driver,metal shielding housing,precision shaft bearing assembly,multi-pin feedback connector,BIT power and signal detection hardware.

LED indicators

LED indicator for power supply status and BIT fault alarm.

Hardware self-diagnosis

Visual inspection of housing,shaft and connector;BIT optical signal and power supply test;A/B/Z phase waveform check;shaft rotation smoothness inspection.

Programming software

Control Techniques Unidrive Tools software,supports encoder configuration,position monitoring and BIT fault log reading.

Electrical & Process Parameters

Model:095U3D300CFFCB 100190 Brand: Control Techniques Device type: Servo optical rotary encoder feedback unit Power supply:5 V DC Signal output:RS-422 differential A/B/Z quadrature signal Shaft type:Solid shaft Control mode:Non-contact optical position measurement,differential signal transmission,metal EMI shielding,built-in BIT health monitoring Cooling: Natural convection cooling Protection: Reverse polarity protection,metal shield anti-interference Mounting: Flexible shaft coupling to servo motor Protection class: Metal sealed housing

Mechanical & Structure

Mounting: Servo motor shaft coupling installation Protection class: Metal shield housing

Environmental

Operating temperature:-40℃ ~ +85℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:20~80% non-condensing Certification: CE compliant Status: Control Techniques high-precision optical quadrature rotary encoder for servo motor position feedback

Installation

Follow ESD safety procedure before handling.Align encoder shaft with servo motor shaft and connect by flexible coupling.Tighten coupling screws properly,avoid excessive radial or axial load.Connect 5 V DC power and differential A/B/Z feedback wiring to Control Techniques servo drive feedback terminal.Power on chassis,launch Unidrive Tools,run BIT diagnostic before commissioning.

Interface

Multi-pin feedback connector for 5 V power,ground and A/B/Z differential quadrature signals.

Diagnostic

No pulse output: missing 5 V supply,loose connector or failed LED source. Incorrect rotation direction: A and B phase wires swapped. Loss of Z index pulse: optical grating contamination or Z channel hardware damage. Unstable position reading: inadequate shielding or ground loop interference.

Product Brief

Control Techniques 095U3D300CFFCB (100190) servo optical rotary encoder,RS-422 differential A/B/Z quadrature output,metal EMI shielding and built-in BIT self-check,delivers high-precision shaft position feedback for Control Techniques servo drives and hardware-in-loop simulation systems.