ALLPCB
Motor Delta and Star Connection Diagrams
Technical overview of motor wiring comparing star connection and delta connection, star-delta reduced-voltage starting, and field troubleshooting of a 2.2 kW motor.
Motor Power and Cable Diameter Calculation
Motor current and cable sizing calculations with transformer kVA, voltage-drop, conductor selection and protective device sizing (breakers, contactors, overload relays).
What Do Iq and Id Mean in Motor Control?
Explains basic motor model and torque from magnetic misalignment, introduces Park transform and DQ axes, and how field-oriented control (FOC) uses Id/Iq to regulate torque.
Industrial Camera Frame Rate and Exposure Time Explained
Explains industrial camera frame rate and its relation to exposure time, covering non?overlapped vs overlapped acquisition and a timing example for STC?A202A.
Siemens S7-1500 Redundancy Configurations and Cases
Configuration overview of S7-1500R/H redundancy for 1500 series PLCs: supported CPU models, PROFINET ring requirements, topology options, failure scenarios and diagnostics.
Shaft Design Basics for Engineers
Learn the basics of shaft design for engineers, including types, materials, structural design, and maintenance tips.
Control Valve Action: Air-to-Open/Close and Flow Directions
Explains air-to-open and air-to-close valve behavior, direct/reverse pneumatic actuator and positioner actions, flow-to-open/close and fail-open/fail-close safety considerations.
MOSFET H-Bridge vs Dedicated Motor Driver Solutions
Compare MOSFET H-bridge and motor driver IC solutions for motor control, examining power capability, design complexity, and reliability trade-offs.
Single-motor vs Dual-motor Drive Systems
Comparative overview of single-motor vs dual-motor drive systems in new energy vehicles, assessing load distribution, architectures, and durability implications.
PLC Control Cabinet Conditions and Structure
Technical overview of PLC control cabinet components, operating conditions, architecture, and working principle, including I/O image table and scan cycle behavior for automation.
Common CNC Machine Parameter Guide
FANUC 0i/0TD CNC troubleshooting: handwheel pulse generator failure, overtravel/ALM701 alarms, and maintenance parameter procedures for diagnostics and temporary fixes.
How to Reduce Motor Energy Losses
Learn how to reduce motor energy losses with techniques for stator, rotor, core, and stray losses to improve electric motor efficiency.
Back EMF vs Terminal Voltage in PMSMs
Technical summary of back EMF in permanent-magnet motors: generation, relation to terminal voltage, flux linkage, and factors affecting magnitude (speed, turns, air gap).
Structure and Function of Siemens TIA Portal Text Block Interfaces
Technical reference for block declaration and return value syntax, declaration sections, variable and constant declarations, ARRAY type rules and initialization.
Seven-Step PLC Commissioning Guide for Beginners
Seven-step PLC commissioning guide for electrical control cabinets covering circuit checks, IO testing, motor and safety verification, PID tuning, and pilot production.
Effects of Improper Coil Winding on Motor Performance
Technical guidance on motor windings: how turn count (fewer or more turns) affects inductance, resistance, current, speed, heating and performance.
Star-Delta Motor Starting Wiring and Principle
Star-delta reduced-voltage starting for induction motors: wiring, components, and timed star-to-delta sequence to limit starting current for large motors.
Classifying Electric Motor Sizes
Motor size classification by shaft center height and stator core outer diameter, listing micro/small/medium/large ranges for engineers and designers.
Choosing Cameras and Lenses for Machine Vision
Camera selection and lens selection for computer vision: imaging principles, key parameters, line-scan vs area-scan sizing, spatial resolution and focal-length formulas.
AGV Integration Methods with MES/ERP/WMS
Overview of five AGV integration approaches (Webservice, intermediate database, HTTP API, TCP/IP+Modbus, custom) with LAN and interface considerations.