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Installation manual
CNC 8055
CNC 8055i
2.
CNC 8055 I CONFIGURATION
SOFT: V02.2X
CNC structure
Sercos digital servo system
Module identification at the bus.
Each one of the elements integrated into the Sercos bus is identified by the 16-position rotary switch
(0-15) "Address" (also referred to as "Node_Select"). This rotary switch selects the address (node)
occupied by each element integrated in the bus.
The CNC's communications board does not have a switch and always assumes position 0 inside
the bus. The rest of the modules occupy consecutive positions (recommended) starting from "1".
The fact that the drive identified with number 1 (for example) corresponds to the X axis, to Y or to
another one is irrelevant. However, it is a good idea, for the sake of clarity, that the machine axes
X, Y, Z, U, V, W, A, B and C are numbered sequentially in that order.
Sercos connector pinout.
Sercos cable characteristics.
Fagor Automation provides the fiber optic cables needed for Sercos communication. There are
different types of cables depending on length and dynamic and static installation characteristics.
• Fiber optic cable with polymer core (SFO, SFO-FLEX) for up to 40 meters If the cable will be
subject to dynamic conditions (it will be moving), the SFO-FLEX cable must always be used.
If the cable will be subject to static conditions (it will not be moving), the SFO cable will be enough.
• Fiber optic cable with glass core (SFO-V-FLEX) for more than 40 meters.
Mechanical characteristics of the cables.
Signal Description
IN Sercos connection input.
OUT Sercos connection output.
SFO cable
Flexibility. Normal. Minimum bending radius: 30 mm.
Only to be used when the cable will not be moving (static conditions).
Covering. PUR. Polyurethane resistant to chemical used on machines.
Temperature. Work: -20 ºC / 80 ºC (-4 ºF / 176 ºF).
Storage: -35 ºC / 85 ºC (-31 ºF / 158 ºF).
SFO-FLEX cable
Flexibility. High. Minimum static bending radius of 50 mm and a dynamic radius of 70 mm.
Special cables to be used in cable carrying chains.
Covering. PUR. Polyurethane resistant to chemical used on machines.
Temperature. Work: -20 ºC / 70 ºC (-4 ºF / 158 ºF).
Storage: -40 ºC / 80 ºC (-40 ºF / 176 ºF).
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