Start-Up
4.7 Commissioning
4-84
SINUMERIK 802S
6FC5 597–2AA00–0BP2 (01.02)
4.7.2 Starting up the axes
Overview
The SINUMERIK 802S has up to three stepper motor feedrate axes (X, Y
and Z). The stepper motor drive signals are output at connector X7 for the:
S X axis at pins 1–3 (PULS1, DIR1 and EN1)
S Y axis at pins 4–6 (PULS2, DIR2 and EN2) and for the
S Z axis at pins 7–9 (PULS3, DIR3 and EN3).
Additional axes
The 2nd axis in the axis order, which when milling has the function of the Y axis can be used
as an additional axis when turning. This is achieved by loading one of the files “turnax_U.ini”
or “turnax_V.ini” or “turnax_W.ini” from the Toolbox and enabling these data.
Which files are selected is dependent on the desired axis name: U or V or W.
The additional axis is a linear axis with limited functionality, compared with the axes X and Z.
It can be traversed together with the remaining axes. If the additional axis is traversed in a
program block that contains G1 or G2/G3, using the axes (X, Z), then it will not be assigned a
component of the feedrate F. In this case, the axis’ speed will depend on the path travel time
of the axes X, Z. Its motion starts and ends together with the axes X, Z. The axis speed, ho-
wever, cannot be greater than the limit value defined for the additional axis.
If the additional axis is programmed in a separate block, it will travel with the active feedrate F
if G1 is programmed.
Both settable offsets (G54 ... G57) and programmable offsets (G158) are possible for the addi-
tional axis. Tool offsets are not effective in this axis.
Simulation/stepper motor drive
Setpoint output and pulse feedback can be switched between simulation and drive operation
using the axis MD 30130_CRTLOUT_TYPE and 30240_ENC_TYPE.
Table 4-12
MD
Simulation Normal Operation
30130 Value = 0
To test the axis, the actual value is fed
back internally as an actual value. No set-
point output at connector X7.
Value = 2
The setpoint signals for stepper motor
operation are output at connector X7. Real
axis traversal is possible using a stepper
motor.
30240 Value = 0 Value = 3
Internal pulse feedback from setpoint out-
put to actual value input “ON”
Machine data default settings for stepper motor axes
The machine data list bloew contains the default machine data and their recommended set-
tings with stepper motor axes connected.
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