Detailed Description
2.1 Spindle modes
Basic logic functions: Spindles (S1)
28 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Special points to be noted
• The accelerations are defined in the following machine data:
– MD35210 $MA_GEAR_STEP_POSCTRL_ACCEL
(acceleration in position control mode)
– MD35200 $MA_GEAR_STEP_SPEEDCTRL_ACCEL
(Acceleration in the speed control mode)
• The spindle override switch is active.
• The positioning action (SPOS, M19 and SPOSA) is canceled with each reset.
• The positioning action is canceled with NC STOP.
• The positioning velocity can also be programmed with FA[Sn].
2.1.5 Axis mode
Why axis mode?
For certain machining tasks (e.g., on turning machines with end-face machining), the spindle
not only has to be rotated with M3, M4 and M5 and positioned with SPOS, M19 and SPOSA, but
also addressed as an axis with its own identifier (e.g., C).
Prerequisites
• The same spindle motor is used for spindle mode and axis mode.
• The same position measurement system or separate position measurement systems can
be used for spindle mode and axis mode.
• A position actual-value encoder is a mandatory requirement for axis mode.
• If the axis is not synchronized, e.g., M70 is programmed after POWER ON, the axis must
first be homed with G74. Only then does the mechanical position match the programmed
one.
Example:
M70
G74 C1=0 Z100
G0 C180 X50
Configurable M function
The M function, which switches the spindle to axis mode, can be configured in machine data:
MD20094 $MC_SPIND_RIGID_TAPPING_M_NR.
The value on delivery is 70.
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