2 – 58 HEIDENHAIN Technical Manual TNC 426, TNC 430
NC software
280 474-12 (export
version 280 475-12)
Release: 03/99
Improvements:
n MP2221: Monitoring the reference pulse of the spindle-speed encoder
n M4181: NC program selected
n Input value of the rated frequency in the motor table for asynchronous
motors increased from 999.9 Hz to 2000.0 Hz
n Module 9175: Error code approach position active
n Module 9281: Set cursor on a line in the selected pallet table
n Cycle 207, 17, 18: Maximum input value from Q239 expanded to 99.9999
mm
n New error number 1068 (Datum table?) for the function FN14: ERROR
NC software
280 474-13 (export
version 280 475-13)
Release: 06/99
Improvements:
n MP340: External interpolation
n In the manual operating modes, the highest axis feed is stored in D388
n In the format instructions for the large PLC window, special characters can
be entered with /xYY.
n With C-axis operation, the bit for the spindle or the axis can be transferred
to modules 9161 and 9162.
n Module 9035: Axis-specific handwheel superpositioning (M118)
n Module 9040 and 9041: Reference values with calculated backlash
compensation
n Module 9044: Spindle coordinates in the form 0.0001°
n Module 9122: Interrogate whether PLC axis has reached target position
n Module 9281: Datum shift and datum set can still be carried out, even if the
line is disabled by an entry in LOCK.
n If a customer-specific company logo is displayed, the control description is
no longer shown.
n Cycle 17, 18: If an interruption occurs during a tilted working plane, the soft
key MANUAL TRAVERSE appears.
NC software
280 474-14 (export
version 280 475-14)
Release: 07/99
Improvements:
n MP7500: Tilting-axis positioning during datum setting
n FN17 ID501: Write to REF-referenced datum table
n FN18 ID501: Read from REF-referenced datum table
n Module 9189: Shut down the control
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