Fagor CNC 8070, Hardware Configuration

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Hardware configuration.
CNC 8070
5.
CENTRAL
UNIT + MONITO
R (ETX PLATFORM).
Conn
ecti
ons.
·92·
(R
EF
: 1911)
5.12.8 Mechatrolink bus.
The Mechatrolink bus may be used to communicate with servos (axis and spindle) and
inverters (spindle) in Mlink-I (17 bytes) mode and Mlink-II (17 or 32 bytes) mode. With this
type of bus, up to 14 slaves may be connected in Mlink-I mode and 30 slaves in Mlink-II mode
(a repeater must be used to connect more than 16 slaves).
Mechatrolink cable characteristics.
Use a specific Mechatrolink cable. The maximum length of the cable is 50 m (164 ft). The
minimum length of the cable between elements is 0.3m (1 ft) in Mlink-I mode and 0.5 m (1.7
ft) in Mlink-II mode.
Twisted-pair shielded cable should be used to minimize interference between cables, thus
preventing poor communication in long lengths.
Identification of the first and last elements of the bus. Line
terminating resistor.
In the bus, it is necessary to use a line terminating resistor to identify which are the elements
that occupy the ends of the bus; i.e. the first and last physical element in the connection. For
the central unit, the terminating resistor is factory installed because the CNC is always at
one end of the bus.
Item. Description.
Type. Shielded. Twisted pair.
Impedance. 130

.
Servo
Inverter
1 2 3 n
CNC
Servo
Inverter
Servo
Inverter
Servo
Inverter