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Scheda HEIDENHAIN
Brand: HEIDENHAIN -
Code:238 289 01
| Combination name | Availability | Price |
|---|---|---|
CNC Electronic Control Board – HEIDENHAIN 238 289 01
The 238 289 01 is an electronic control board (“Electronic Control Board”) manufactured by HEIDENHAIN, a leading German manufacturer of precision measurement and CNC control systems. The component belongs to the internal control electronics family of HEIDENHAIN TNC control systems, designed for signal management and interfacing within the control unit. The part number includes a hardware revision suffix (01) identifying the specific board variant; later revisions may exist. The board is installed in the control’s electronics rack and operates in conjunction with the other cards on the TNC backplane.
HEIDENHAIN TNC internal electronic boards perform essential functions: processing position signals from encoders, managing interpolated axes, interfacing with the power electronics, and handling inter-module communication within the CNC. A failure of this component typically causes a complete or partial control shutdown — unexpected machine stops, loss of position reference, or system errors that make machining impossible until the board is replaced or repaired.
HEIDENHAIN (Dr. Johannes Heidenhain GmbH) is a German company founded in 1948 in Traunreut, Bavaria, specialising in position measurement systems (linear and rotary encoders, optical scales), TNC numerical controls, and precision instrumentation for machine tools. Unlike many competitors, HEIDENHAIN has remained independent and is still active; however, boards in the 238 xxx series belong to control generations that are now legacy / discontinued and are available only as used stock, NOS surplus, or through specialist repair services.
Main Technical Specifications
| Type | CNC electronic control board (Electronic Control Board) |
| Part number | 238 289 01 (23828901) |
| Brand | HEIDENHAIN (Dr. Johannes Heidenhain GmbH) |
| Known application | HEIDENHAIN TNC series CNC control systems (milling machines, machining centres) |
| Function | Position signal processing, axis management and internal CNC system control |
| Hardware revision | 01 (embedded in part number; later revisions may exist) |
| Supply voltages | ±15 V, +5 V DC (typical for HEIDENHAIN TNC internal electronics) |
| Interfaces / connectors | Edge connector on TNC rack backplane; internal Eurocard connectors |
| Construction standard | Eurocard rack-mounted PCB; selected industrial-grade components |
| Weight | ~0.2–0.6 kg |
| Dimensions | ~160–280 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
