TNC 320




    • Main computer with TNC keyboard and integrated 15-inch screen with soft keys

    Operating system

    • HEROS 5 real-time operating system for machine control


    • RAM memory: 2 GB
    • NC program memory: 1.8 GB (on CFR Compact Flash memory card)

    Input resolution and display step

    • Linear axes: down to 0.1 µm
    • Rotary axes: down to 0.0001°

    Input range

    • Maximum 99 999 999 mm or 99 999 999°


    • Linear in four axes
    • Circular in two axes
    • Circular in three axes with tilted working plane
    • Helical: superimposition of circular and straight paths

    Block processing time

    • 3 ms (3-D straight line without radius compensation)

    Axis feedback control

    • Position resolution: signal period of the position encoder/1024
    • Position controller cycle time: 3 ms

    Spindle speed

    • Maximum 100 000 rpm (analog speed command signal)

    Error compensation

    • Linear and nonlinear axis error, backlash, reversal peaks during circular movements, thermal expansion
    • Static friction, reversal error, sliding friction

    Data interfaces

    • RS-232-C/V.24 max. 115 kbit/s
    • Extended data interface with LSV-2 protocol for remote operation of the TNC 320 over the data interface with the TNCremo or TNCremoPlus software from HEIDENHAIN
    • Gigabit Ethernet interface 1000BASE-T
    • Three USB ports: one USB 2.0 port on front and two USB 3.0 ports on rear


    • Fast and simple troubleshooting through integrated diagnostic aids

    Ambient temperature

    • Operation: +5 °C to +40 °C
    • Storage: –20 °C to +60 °C