BEI ELECTRONIC MODULES ENCODER SIGNAL BROADCASTER Introduction The BROADCASTER accepts standard incremental encoder inputs, (two channels in quadrature plus an index and complements) and can broadcast up to four encoder signals to four independent devices. Each of the broadcast signals is optically isolated eliminating ground loops. This compact package also allows for signal processing options, such as anti-dither filter, integer countdown or pulse and direction outputs, to be incorporated into each of the four broadcast signals independently. The broadcaster is ideal for driving multiple receivers from a single encoder in applications like electronic line shafting or synchronization of multiple devices to a single operation. The module accepts signals of 5, 12-15 and 24 VDC and provides three output options: Vout = Vin, Vout = 5 V or NPN open collector. The compact package mounts to standard EN 50 022 35mm X 7.5mm DIN rail and is 142mm wide, 78mm deep and 45mm above the DIN rail. A 155mm section of DIN rail is included. Features Broadcasts signals from a single encoder to four independent receivers Signal processing modules (pulse converter, integer countdown, anti- dither) can be added to each output for additional capabilities Accepts all standard input voltages and types: single ended, differential and open collector Signals are optically isolated for high noise immunity Compact package saves installation costs SPECIFICATIONS (For Isolated Circuit And Anti-Dither Functions) Differential Line Driver (See Figure 1) The Encoder signals from 5 VDC to 24 VDC (must specify the voltage when ordering) This is the preferred type of encoder output as it has the best noise immunity. Connect each encoder signal to its like input (A to A, A/ to A/, etc). Page 1 www.sensata.com Copyright 2018 Sensata Technologies, Inc.Single Ended Line Driver (See Figure 2) Encoder signal from 5 VDC to 24 VDC (must specify the voltage when ordering) Connect broadcaster A to optical isolator module input channel A, B to B and Z to Z. Connect the A/, B/, and Z/ inputs of the optical isolator to circuit common of the encoder supply. Single ended operation is limited to shorter cable runs and is more susceptible to noise. Open Collector with or without Internal Pull-up Resistors (See Figure 3) Encoder NPN (sinking) outputs. Connect encoder output A to optical isolator module input A/, B to B/ and Z to Z/. Connect the A, B, and Z inputs of the broadcaster to the positive encoder supply line. This connection results in a logic inversion within the broadcaster module. To compensate for the logic reversal, swap A for A/, B for B/, and Z for Z/ at the broadcaster outputs. TERMINATION PINOUTS Encoder Side PIN Description Notes A, A/ Channel A Inputs Input levels consistent with specified value in model number (5 V, 15 V, 24 V). B, B/ Channel B Inputs Signal input current 25 mA nom. See BEI Optical Isolator Module Applications Guide for single ended Z, Z/ Channel Z Inputs and open collector connection diagrams. Non-committed terminals. T1, T2, T3 Uncommitted Terminals Provided for use as connection points for encoder power. Page 2 www.sensata.com Copyright 2018 Sensata Technologies, Inc.
