Process Of Spindle Orientation With Marker M4130 Or Module 9171 - HEIDENHAIN TNC 426 PB/M Technical Manual

Process of spindle
orientation with
Marker M4130 or
Module 9171
6 – 202
The spindle speed is reduced in open-loop control along the ramp from
MP3412.1 to the speed for spindle orientation (MP3520.1). As soon as this
speed is reached, the control loop closes. The spindle is oriented in feedback
control along the ramp from MP3412.1 to the nominal position. As long as the
spindle moves in a closed loop, M4017 remains set:
7 7 7 7
In MP3440.x, assign each gear range a k
ranges.
7 7 7 7 In MP3415.1, define the overshoot behavior of the first spindle during
spindle orientation.
7 7 7 7
Define the positioning window in MP3420. As soon as the spindle is in the
positioning window, M4000 is set.
If the spindle should not remain in the position control loop after it reaches the
nominal position, then you must set M4012. After the marker is set the spindle
is free again.
If M4012 always remains set, the control loop opens after every oriented
spindle stop as soon as the positioning window is reached.
You can compensate a maladjustment resulting from mounting the rotary
encoder:
7 7 7 7
In MP3430, enter the offset between the nominal and actual position of the
reference mark. The offset is then compensated during orientation.
After the spindle is switched on, the NC evaluates the reference mark, even if
the position control loop is not closed. M4018 is set until the reference mark
is evaluated. For special applications you can evaluate the reference mark
again by setting M4015. The NC resets M4015 when the reference mark is
evaluated.
7 7 7 7 With MP7291, select the display mode for the spindle position. If M03 and
M04 are not active, the display returns to zero every 360 degrees (modulo
function).
MP3412.1 Multiplier for MP3411 during spindle orientation
Input: 0 to 1.999
MP3415.1 Spindle overshoot behavior during orientation
Input: 0 to 1000 [ms]
MP3420 Spindle positioning window
Input: 0 to 360.0000 [°]
MP3430 Deviation of the reference mark from the desired position
(spindle preset)
Input: 0 to 360 [°]
MP3440.0-7 k factor for spindle orientation for gear ranges 1 to 8
v
Input: 0.1 to 10 [(1000°/ min) /°]
MP3520.1 Spindle speed for oriented stop
Input: 0 to 99 999.999 [rpm]
factor for adjusting the gear
v
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