GV-21P KEYENCE Amplifier Unit PNP Main Unit GV Series Fast Response

GV-21P KEYENCE Digital CMOS Laser Sensor Amplifier Unit

GV-21P from KEYENCE is a main amplifier unit for the GV Series. It delivers fast response, dual digital display, and stable PNP output. Ideal for industrial automation tasks.

Technical Data

• Brand: KEYENCE
• Model: GV-21P
• Series: GV Series
• Type: Amplifier Unit, Main Unit
• Output: PNP
• Power Consumption:
  • Normal: 2200 mW max. (30 V: 73.3 mA max.)
  • Eco-Half: 1700 mW max. (30 V: 56.7 mA max.)
  • Eco-All: 1600 mW max. (30 V: 53.3 mA max.)
• Display: Dual 7-segment LED (Red current value, Green preset value) + 2-color 13-level bar LED
• Control Output: PNP open collector x 2ch, 30 V DC max., 100 mA max., residual voltage 1 V max.
• Control Input: Emission stop, Bank switching, Shift, Timing. Each input response time: 20 ms
• Response Time: 1.5 / 3 / 10 / 20 / 50 ms
• Operation Indicators: Control output red LED x 2, Channel display green LED x 2, Laser emission green LED, Other green LED x 2 / red LED x 3
• Power Voltage: 10 to 30 VDC, ripple (P-P) 10%
• Ambient Temperature: -10 to +55 °C (14 to 131 °F), no freezing
• Relative Humidity: 35 to 85 % RH, no condensation
• Vibration Resistance: 10 to 55 Hz, double amplitude 1.5 mm, 2 hours each axis (X, Y, Z)
• Material: Housing & display cover: Polycarbonate, Key top: Polyacetal, Cable: PVC
• Weight: Approx. 110 g

Installation Guide

• Mount the GV-21P on a DIN rail or panel.
• Connect power supply: 10 to 30 VDC.
• Wire PNP output to your PLC or load.
• Use control inputs for emission stop, bank switching, shift, or timing.
• Keep away from strong vibration and direct sunlight.

Commissioning and Maintenance

• Set preset value with green 3-digit LED.
• Read current value on red 3-digit LED.
• Use bar LED for quick level check.
• Clean display cover with soft cloth.
• Check wiring every 6 months.

Compatibility

• Works with GV Series sensor heads.
• PNP input devices and PLCs.
• 10 to 30 VDC power systems.
• Standard industrial automation controllers.

Certifications

• CE marked. RoHS compliant. KEYENCE quality standards.

Package Contents

• 1 x GV-21P Amplifier Unit
• 1 x Instruction Manual

Warranty and Shipping

• 12-month warranty from date of purchase.
• Ships within 12-24 hours.
• Express delivery: FedEx, UPS, DHL.

Manager’s Insight

The GV-21P is a smart choice for fast lines. It has dual display and PNP output. Power use is low in Eco mode. Response time is quick. This unit fits many KEYENCE sensor heads. It reduces downtime and setup time.

Expert Review

The GV-21P offers strong performance for its class. The 1.5 ms response time handles fast sorting. The dual LED display shows current and preset values at a glance. The bar LED helps with quick alignment. PNP output works with most PLCs. The Eco modes save energy. Vibration and temperature ratings suit factory floors. A solid main unit for the GV Series.

Ideal Applications

• Part presence detection
• Position sensing on conveyors
• Small object counting
• Edge detection
• Label positioning

FAQ

• Q: What is the difference between GV-21P and other GV models?
  A: GV-21P is a main amplifier unit with PNP output. Other models may have different output types or functions.
• Q: Can I use GV-21P with any GV Series sensor head?
  A: Yes. It works with all GV Series sensor heads.
• Q: How do I set the preset value?
  A: Use the green 3-digit LED and the setting buttons. The manual explains the steps.
• Q: What is the response time range?
  A: You can choose 1.5, 3, 10, 20, or 50 ms.
• Q: Does it work with 24 VDC power?
  A: Yes. The range is 10 to 30 VDC.
• Q: How many control outputs does it have?
  A: Two PNP open collector outputs.
• Q: What is the warranty period?
  A: 12 months.
• Q: How fast do you ship?
  A: We ship within 12-24 hours via FedEx, UPS, or DHL.

Buying Guide

• Check your sensor head compatibility.
• Confirm your PLC input type (PNP).
• Consider response time needs (1.5 ms for high speed).
• Eco mode saves power in continuous use.
• Buy from a trusted source with warranty.

Contact us for inquiries: sales@powergearx.com or +86 18030005825 (WhatsApp).

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