By340_04b_oi_e.doc / Apr-16
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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
Encoder
Index
Master
(optional)
Index
Slave
(optional)
Slave
Encoder
Speed
variable
drive
0-10V
BY Controller
Master motor with
free motion under
remote control
(not controlled
by the BY unit)
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.
