btsr MULTIFEEDER Operating Manual page 58

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MASTER/SLAVE mode
In order to obtain a Top Quality product on multi-drop machines, it is necessary to
meet the following requirements:
Homogeneous Tension
Speed constant and perfectly equivalent on all devices.
This can be obtained by means of the Master/Slave operating mode, where more
Slave devices follow the Master device speed exploiting the CAN bus
communication line, in such a way as to obtain constant and homogeneous speeds
on all the devices.
Example: Assuming that the Master device is working with a 4 g tension at 200
m/min speed and that the speed of a Slave is 190 m/min, this one will decrease its
work tension until obtaining the same speed of the Master device.
On the same machine it is possible to install multiple sets of devices featuring
different processes.
This means that you may define more than one Master and more than one set of
Slaves: the Slaves 1 will copy the Master 1 data; the Slaves 2 will copy the Master
2 data and so on. At the moment, however you may configure a maximum of two
Masters (Master 1 and Master 2); an unlimited number of Slaves can be assigned to
each Master.
The Master/Slave mode can be configured both: for applications using only
MULTIFEEDER devices and for applications using different device types, as
shown on the following table.
MASTER SLAVE
MULTIFEEDER MULTIFEEDER
MULTIFEEDER ROLLING FEEDER
MULTIFEEDER ROLLING MED
During the normal operation, to easily locate the association between each Master
and the relevant Slaves, a different LED lighting code is used:
The LED lights-up on Master 1 and relevant Slaves 1
The LEDs and
If a Slave does not receive data, for instance due to communication problems on
CAN bus, then the red signalling will blink (LED
and . in case of Slave 2)
MULTIFEEDER
APPLICATION
Various
Small, medium, large diameter
circular machines
Machines for medical socks
light-up on Master 2 and relevant Slaves 2
Operation
in case of Slave 1, LEDs