Introduction. Motrona BY340, BY641

3.

Introduction

The BY340 / BY641 units are suitable to operate as electronic synchronous controllers with speed-variable drives of any kind and any size, provided they dispose of an analog input to set the speed. The operation is based on a Master / Slave principle.

The Master could basically be any moving part of a machine, provided there is a quadrature incremental encoder signal available from the Master motion. The Slave would typically be a speed-variable drive like an Inverter Drive or Servo Drive or DC Drive, but could also be a hydraulic system with a servo valve or similar. In any case a quadrature feedback signal is also necessary from the Slave.

The subsequent drawing shows an example of speed synchronization between two belts, including automatic position adjustment by means of index sensors (optional).

Master motor with free motion under remote control

(not controlled by the BY unit)

Master

Encoder

Index

Master

(optional)

Speed

variable

drive

0-10V

Index

Slave

(optional)

Slave

Encoder

BY Controller

 This manual first provides all basic instructions for operation of model BY340

 For operation of relays and thumbwheels with model BY641 see appendix

 For PC setup our “OS32” software is available on the CD included to delivery, or on our homepage www.motrona.com

 For communication by PLC, IPC or by a remote operator terminal, please observe the serial protocol details described in our separate SERPRO manual.

 PROFIBUS communication is possible with use of our gateway PB251.

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