- Panel PC: An industrial computer with a built-in display, used for machine interfaces and process control, often mounted directly on a control panel.
- Parameter list: A comprehensive set of configurable values or settings for devices like drives, PLCs, or relays, allowing users to tailor behavior to specific applications.
- Passive Harmonic Filter: A filter that reduces harmonic distortion in electrical systems by using passive components like inductors and capacitors, improving power quality.
- PDS (Power Drive System): A complete variable-speed drive system that includes the motor, frequency converter, and sometimes additional components for precise motor control.
- Personnel protection: Safety measures designed to protect individuals from electrical hazards, such as shock, arc flash, and equipment faults.
- Phase cutting: A method of controlling power by delaying the firing angle of a switch (e.g., in dimmers), which alters the waveform and reduces voltage to the load.
- Phase failure motor protective relay Z: A specific relay designed to detect the loss of one or more phases in a three-phase system and protect the motor accordingly.
- Phase failure sensitive: Describes a device that can detect and respond to missing or unbalanced phases, used to prevent motor damage.
- Phase imbalance relay: A protection relay that detects unequal voltages or currents across the three phases, which can cause overheating in motors.
- Phase monitoring relays: Devices that supervise the presence, sequence, and balance of three-phase power and trigger alarms or shutdowns if anomalies occur.
- Phase sequence relays: Relays that monitor the order of phase rotation (L1-L2-L3). Incorrect sequence can cause motors to run in reverse.
- Pilot devices: Low-power control devices (such as pushbuttons, switches, and indicators) used to send control signals in industrial environments.
- Polarisation reflex sensor: A photoelectric sensor that detects reflected light using a polarizing filter, often used for transparent or reflective object detection.
- Position switch LS-Titan®: A line of limit switches used to detect position or motion in industrial automation.
- Drive: The mechanical actuator that moves the switching element.
- Standards: Compliance with international norms governing switch design and safety.
- Suitable applications: Common use cases such as door monitoring, conveyor tracking, or position feedback.
- Positive opening: A mechanical feature in safety switches where the contact opening is ensured by a rigid mechanical linkage, even in the event of contact welding.
- Potential isolation: Electrical separation between circuits to prevent unwanted current paths, often achieved using transformers or optocouplers.
- Power Factor: A measure of how efficiently electrical power is being used; the ratio between real power (kW) and apparent power (kVA). A low power factor indicates wasted energy.
- Preparing the cables with the SUB-D connector: The process of terminating and wiring cables for SUB-D (D-subminiature) connectors, commonly used in control interfaces.
- Process protection: Techniques and devices that monitor and safeguard industrial processes from faults, overloads, or failures to maintain operational integrity.
- Protection against earth fault: Measures that detect leakage or fault currents to ground and isolate the circuit to prevent electric shock or fire.
- Protection types for electrical equipment: Classifications based on the protection level provided by enclosures (e.g., IP ratings) or functional protection against faults.
- Protective conductors, minimum cross-sections: The smallest allowed wire sizes for grounding conductors to ensure safety under fault conditions.
- Protective earth, Protective ground: A safety connection that diverts fault current to the ground, reducing the risk of electric shock or equipment damage.
- Protective measures: General actions and devices used to ensure electrical safety, such as insulation, grounding, fusing, and disconnection.
- PTC thermistors
- Motor protection: Thermistors with a positive temperature coefficient (PTC) used to monitor motor temperature. Resistance increases sharply when overheating occurs.
- Thermistor overload relays: Relays that receive input from thermistors and trip the motor circuit when a high temperature is detected.
- Pull-up torque: The minimum torque a motor generates after starting and before reaching full speed. If the load torque exceeds pull-up torque, the motor may stall.
- Pulse generating: Creating short-duration voltage or current signals used to trigger actions or clock signals in digital systems.
- Pulse shaping: Modifying a signal’s waveform (e.g., square, sawtooth) to improve signal integrity or match system requirements.
- Pump control: The management of pump operation via controllers, relays, or drives—often including level detection, pressure feedback, or load management.
- Pushbutton configurator: A software or tool used to select and customize pushbutton assemblies according to functional and aesthetic preferences.
- Push-in terminals: Spring-loaded terminal blocks that allow tool-free wire insertion for quick, reliable electrical connections.
Published by Leonardo Tomás Cardillo
https://www.linkedin.com/in/leonardocardillo
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