Description
Overview
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Part Number: A860-0203-T001
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Type: Manual Pulse Generator (MPG) / handwheel encoder
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Variant: Without flange (w/o flange) — designed for panel mounting rather than a flush or flange-mounted configuration
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Replacement / Supersedes: This version replaces earlier models such as A860-0202-T001 / T002 and A860-0201-T001 in Fanuc’s lineup.
Electrical / Signal Specifications
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Power Supply: +5 V DC for the encoder section
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Output / Signal Type: Quadrature encoder outputs (A, B)
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Load / Output Impedance: 330 Ω or open-collector configuration
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Terminals / Pins: +5V, 0V (ground), A, B (signal outputs)
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Scale / Axis Selection: The unit includes scale-selection and axis-selection switches. For the T001 variant, typical usage is selecting scale (×1, ×10, ×100) and axis (X, Y, Z, etc.) via common terminals COM1 and COM2.
Mechanical / Physical Specifications
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Pulse Count: Standard 100 pulses per revolution (“100PPR click”)
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Shaft / Mounting: Tapered (keyed) shaft design, no flange
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Weight: ~ 200 g
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Construction: Optical / encoder-based handwheel for precise position feedback
Use Cases & Applications
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The MPG is used in CNC controls / operator panels to allow manual, fine control (jogging, setup) of axes positioning.
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Because it is “without flange”, it is typically panel-mounted with the shaft extending to be engaged by a handwheel or knob.
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It is used especially where precision manual control is needed in machine tools, for CNC axis offsetting, adjustments, etc.