4B1270.00-490 B & R Automation
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The B & R Automation 4B1270.00-490 is part of the 4B1 PanelWare Panels series and features an LC display with a resolution of 4 x 20 characters. It has a membrane keypad with 24 keys, including 12 illuminated keys, and operates at a supply voltage of 24 VDC. The panel measures 180 mm in height, 145 mm in width, and 30 mm in depth, and consumes a maximum power of 3.8 watts.
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Product Description:
B&R Automation's 4B1270.00-490 belongs to the 4B1 PanelWare Panels series and serves as an operator interface for machine control stations. The unit bridges human input with PLC logic by combining a text display and a tactile keypad so operators can view process status and issue commands without a separate computer. Its compact footprint allows mounting on crowded cabinet doors, and the front panel materials are chosen for industrial environments typical of packaging, material handling, and assembly lines.
Electrical characteristics are targeted at low-power machine sections supplied from a 24-volt control circuit. The panel runs on a regulated 24 VDC input that enters through a 3-pin terminal block supply connector. In normal operation, it draws 3.3 W, with headroom to a peak of 3.8 W when the backlight and keys are fully active. The LC display produces a luminance of 200 cd/cm2, so text remains legible under typical shop lighting. That display presents process data in an arrangement of 4 x 20 characters, which is sufficient for short alarms and parameter labels. A 9-pin D-type CAN connector provides network access, and the bus lines are electrically isolated to help prevent ground loops between the controller and field devices.
Physical interaction is handled by a membrane keypad with 24 tactile keys, of which 12 are fitted with individual backlights for clear status feedback. Panel dimensions are limited to a height of 180 mm, a width of 145 mm, and a depth of 30 mm, allowing flush installation in shallow enclosures. This layout supports straightforward navigation during routine use. The sealed membrane surface resists dust and cleaning agents encountered on factory floors, and the mechanical outline matches standard cutout patterns used throughout the 4B1 PanelWare Panels series.
