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FANUC Series 20 A20B-3900-0070

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A20B-3900-0070

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The FANUC A20B-3900-0070, part of the Series 20, is a Flash/EPROM storage PCB equipped to retain essential CNC memory. It offers a memory capacity of 16 MB and functions optimally at an operating voltage of 5 V, with compatibility among several FANUC models, including Series 16i, 18i, 21i, and select 0i.

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Technical specifications for A20B-3900-0070

ManufacturerFANUC
Product TypeFlash/EPROM Storage PCB
Product LineSeries 20
Part NumberA20B-3900-0070
Weight0.25 lbs (0.11 kg)
FunctionProvides non-volatile memory storage for CNC firmware, part programs, and parameters
Memory Capacity16 MB
Operating Voltage5 V
CompatibilityFANUC Series 16i, 18i, 21i, and some 0i models
Protection ClassIP20
Enclosure RatingNEMA 1
CoolingNatural
Maximum Ambient Temperature40 degrees Celsius
Minimum Ambient Temperature0 degrees Celsius
Maximum Operating Humidity80% (non-condensing)
Maximum Storage Humidity80% (non-condensing)
Maximum Altitude1000m above sea level
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The A20B-3900-0070 from FANUC is a Flash/EPROM storage PCB, significant for the preservation of CNC firmware, part programs, and configurable parameters. It comes with a substantial memory capacity of 16 MB to cater to various programming needs. This unit operates on a 5 V power supply, making it compatible with FANUC models such as Series 16i, 18i, and 21i, along with some 0i variants.

Designed to operate in a protective configuration, the item is classified under Protection Class IP20 and has an enclosure rating of NEMA 1, allowing it to be housed effectively in typical industrial environments. Cooling is achieved through natural convection, which suffices given the operational conditions it endures. The ambient temperature for its operation is limited to a maximum of 40 degrees Celsius, while the minimum threshold is set at 0 degrees Celsius.

Furthermore, the A20B-3900-0070 maintains stable performance in environments with up to 80% relative humidity, both during operation and while stored, provided conditions are non-condensing. It can function at an altitude of up to 1000 meters above sea level, making it versatile for various geographic installations.