The Keyence LV-21AP is a PNP output amplifier unit designed for digital laser sensing applications in industrial automation. This main unit serves as the control interface for Keyence LV-series laser sensor heads, providing dual-channel PNP open-collector outputs for object detection and presence sensing. The amplifier features three selectable response speed modes (FINE, TURBO, and SUPER TURBO) to accommodate different application requirements, from high-speed detection at 80 microseconds to interference-resistant operation at 4 milliseconds. It supports expansion capability, allowing up to seven additional units to be connected for complex multi-point sensing systems. The unit includes comprehensive protection circuitry with reverse polarity protection, overcurrent protection, and surge absorption. With its compact DIN-rail mountable design and integrated 2-meter connection cable, the LV-21AP provides reliable performance in demanding industrial environments operating from -10 to +55°C. Item Details Brand Name: Keyence Manufacturer: Keyence Corporation Item Type Name: Digital Laser Sensor Amplifier Unit Product Family / Series: LV Series Digital Laser Sensor Output Type: PNP Unit Type: Main Unit Product Specifications control_output: PNP open-collector x 2 channels, 30 V DC max., 100 mA max., residual voltage 1.0 V max. response_speed_fine: 80 µs response_speed_turbo: 500 µs response_speed_super_turbo: 4 ms power_supply_voltage: 12 to 24 V DC, ripple (P-P) 10% max. power_consumption: 1.5 W max. (125 mA max. at 12 V, 62.5 mA max. at 24 V) operating_ambient_temperature: -10 to +55 °C (14 to 131 °F), no condensation operating_ambient_humidity: 35 to 85% RH, no condensation protection_circuit: Reverse polarity protection, overcurrent protection, surge absorber expansion_capability: Up to 7 additional expansion units (8 units total including main unit) interference_prevention_units: FINE: None, TURBO: 2 units, SUPER: 4 units cable_length: 2 m material: Polycarbonate (main body and cover) Additional Details Mounting: DIN rail mountable Measurements Weight: Approx. 75 g

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