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Installation manual
CNC 8055
CNC 8055i
6.
MACHINE PARAMETERS
SOFT: V02.2X
Axis parameters
It must be set when the drive's velocity command is analog; it is sent via Sercos (DRIBUSLE = 0)
or via CAN (DRIBUSLE = 0 or 1).
When using gear reduction on the shaft, only the whole assembly must be taken into account when
setting one of parameters PITCH or NPULSES.
DIFFBACK (P9)
Indicates whether the feedback device uses differential signals (double ended) or not.
On an 8055 CNC with –Vpp Axes– module, the feedback connectors of the first 4 axes are for
differential TTL and Vpp signals. This parameter is ignored for these four axes. Use Fagor signal
adapter "SA-TTL-TTLD" (from "non-differential TTL" to "differential TTL") to connect non-differential
signals to these connectors.
SINMAGNI (P10)
Indicates the multiplying factor x1, x4, x20, etc. that the CNC must apply only to sinusoidal feedback
signal.
For square feedback signals, this parameter must be set to 0 and the CNC will always apply a
multiplying factor of x4.
The axis feedback resolution must be set using axis parameters PITCH (P7), NPULSES (P8) and
SINMAGNI (P10) as shown in the following table:
Possible values
Integer numbers between 0 and 299999.
Default value: 1250
When using CAN servo, if both parameters NPULSES and PITCHB are set to ·0·, the CNC will assume
the equivalent values of the drive.
Value Meaning
EZ It does NOT use differential signals.
YES It uses differential signals.
Default value: YES
Possible values
Integer numbers between 0 and 255.
Default value: 0
PITCH
(P7)
NPULSES
(P8)
SINMAGNI
(P10)
Square signal encoder Leadscrew pitch Nr of pulses 0
Sinusoidal signal encoder Leadscrew pitch Nr of pulses multiplying factor
Square signal linear encoder linear encoder pitch 0 0
Sinusoidal signal linear encoder linear encoder pitch 0 multiplying factor
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