The HEIDENHAIN ND 920 is a robust, 2-axis digital readout (DRO) position display unit designed for use on milling machines and other precision manufacturing equipment. It is housed in a durable cast-metal casing suitable for benchtop use. As a “PGM” operator panel, it includes advanced functionality for program input and tool compensation.
Key Features
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2-Axis Operation: Specifically designed for position feedback on two axes (X and Y).
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Program Input: Features a “PGM” (Program) mode, allowing users to enter and execute simple sequences for repetitive tasks.
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Tool Compensation: Includes radius compensation (R+ / R-) functionality for milling operations.
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Versatile Display Modes: Supports both inch and millimeter measurement units, as well as distance-to-go and radius/diameter display options.
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Encoder Input: Accepts HEIDENHAIN linear encoders with sinusoidal output signals (11 to 40 µA pp). Encoder parameters (signal period and subdivision) are configurable via the unit’s settings.
Technical Specifications
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Power Supply: 100 to 240 V AC (−15% to +10%), 48 Hz to 62 Hz.
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Power Consumption: Approximately 17 W.
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Dimensions: 300 x 200 x 108 mm (W x H x D).
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Weight: Approx. 3 kg.
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Operating Temperature: 0° to 45°C (32° to 113°F).
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Protection Class: IP40 (IEC 529).
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Interface (Option): RS-232-C/V.24 for data output.
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Fuses: Internal line fuses (F 2.5 A 250 V) and a fuse for switching outputs (F 1 A).
Applications
This unit is ideal for machine tool applications requiring precise two-axis position readout, particularly in milling. It is suitable for both industrial and laboratory settings where reliable and accurate measurements are essential.
