VEXTA BLD30A Series DC Speed Controllers BLD30A-F

Name: VEXTA BLD30A Series DC Speed Controllers BLD30A-F
Brand: Vexta

Model: BLD30A-F

Brand Vexta

Series BLD30A-F

Model BLD30A-F

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Technical Dossier

Product Details And Specifications

VEXTA BLD30A Series Technical Notes

The VEXTA BLD30A series, manufactured by Oriental Motor Co., Ltd. (Japan), is a line of brushless DC speed controllers designed for precision motor speed regulation in continuous-duty industrial environments. These units have been deployed across heavy-process industries including petrochemical plants, nuclear facility auxiliary systems, offshore platform equipment, and refinery conveyor infrastructure. The BLD30A platform pairs with Oriental Motor's BL series brushless DC motors, providing closed-loop speed control with analog reference input, enabling stable operation across variable load conditions. The series occupies a critical position in legacy automation infrastructure globally, with installed bases spanning Asia-Pacific, the Middle East, and European process industries.

The Evolution of BLD30A Architecture

The BLD30A series represents Oriental Motor's second-generation brushless DC controller platform, succeeding the earlier BLD20 line. The architecture is built around an analog PWM control circuit with internal speed feedback derived from the motor's Hall-effect sensor array. Early production units (pre-2005) used through-hole PCB construction with discrete MOSFET output stages rated at 30W continuous. Mid-generation revisions introduced surface-mount logic sections while retaining the power stage topology for backward compatibility with existing motor wiring harnesses.

BLD30A Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified BLD30A series product range. Each unit is a standalone brushless DC speed controller rated at 30W output, differentiated by speed reference input method, enclosure type, and accessory configuration.

BLD30A-F: 30W brushless DC controller, front-panel potentiometer speed reference input.
BLD30A-E: 30W brushless DC controller, 0–5 VDC external analog voltage speed reference input.
BLD30A-P: 30W brushless DC controller, pulse-train (open-collector) speed reference input.
BLD30A-FP: 30W controller, combined front-panel pot and pulse-train input, selectable via switch.
BLD30A-EP: 30W controller, combined external voltage and pulse-train input, selectable via switch.
BLD30A-F2: 30W controller, front-panel potentiometer, 200 VAC single-phase input variant.
BLD30A-E2: 30W controller, external analog input, 200 VAC single-phase input variant.
BLD30A-P2: 30W controller, pulse-train input, 200 VAC single-phase input variant.
BLD30A-FP2: 30W controller, combined pot/pulse input, 200 VAC single-phase input variant.
BLD30A-EP2: 30W controller, combined external/pulse input, 200 VAC single-phase input variant.
BLD30A-F-S: BLD30A-F with integrated speed monitor signal output terminal.
BLD30A-E-S: BLD30A-E with integrated speed monitor signal output terminal.
BLD30A-P-S: BLD30A-P with integrated speed monitor signal output terminal.
BLD30A-F-SET: Factory-matched set of BLD30A-F controller paired with compatible BL series motor.
BLD30A-E-SET: Factory-matched set of BLD30A-E controller paired with compatible BL series motor.
BLD30A-P-SET: Factory-matched set of BLD30A-P controller paired with compatible BL series motor.
BLD30A-F-GFS: BLD30A-F controller with optional gear-head and feedback speed sensor accessory kit.

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