Keyence GV-21P CMOS Laser Amplifier Main Unit PNP

Product Introduction

The GV-21P from Keyence is a digital CMOS amplifier main unit. It belongs to the GV series. This model provides PNP output. Also, it carries two control output channels. The unit works as a main amplifier for GV series sensor heads.

This amplifier uses a dual 7-segment display. The current value shows on a 3-digit red LED. The preset value shows on a 3-digit green LED. Furthermore, a 2-color 13-level bar LED provides quick visual feedback. The bar LED uses red and green colors.

Technical Specifications

First, the GV-21P offers four response time settings. Users can select 1.5 ms, 3 ms, 10 ms, 20 ms, or 50 ms. Next, the control output uses a PNP open collector design. It provides two channels. Each channel handles 30 V DC max and 100 mA max. Residual voltage stays at 1 V max.

Moreover, the unit includes several control inputs. These cover emission stop, bank switching, shift, and timing functions. Each input has a response time of 20 ms. Additionally, the operation status indicators use multiple LEDs. Two red LEDs show control output. Two green LEDs show channel display. A green LED marks laser radiation emission.

Power and Display Features

The GV-21P runs on 10 to 30 VDC. The supply includes ripple of 10% peak-to-peak. Power consumption varies by mode. In normal mode, it reaches 2200 mW max. At 30 V, this equals 73.3 mA max. In Eco-Half mode, it drops to 1700 mW max. In Eco-All mode, it reaches 1600 mW max.

The display system supports easy setup. Specifically, the dual 7-segment display shows current and preset values at once. The 13-level bar LED adds a fast reading of signal strength. Besides, the 2-color design helps users spot changes quickly.

Mechanical and Environmental Parameters

The GV-21P uses polycarbonate for the housing and display cover. The key top uses polyacetal material. The cable jacket uses PVC. The unit weighs approximately 110 g.

The operating temperature ranges from -10 to +55 °C. Freezing must be avoided. Relative humidity ranges from 35 to 85% RH. Condensation must not occur. Vibration resistance covers 10 to 55 Hz. The double amplitude reaches 1.5 mm. The unit withstands this vibration for 2 hours on each X, Y, and Z axis.

Installation Guide

First, power down the control panel. Next, mount the GV-21P on a DIN rail or bracket. Then, connect the sensor head to the amplifier. After that, wire the PNP outputs to the controller.

Moreover, connect the control inputs as needed. These include emission stop, bank switching, shift, and timing. Then, set the response time for the application. Finally, check all wiring before power up. The unit needs no special tools for mounting.

Packaging List

One Keyence GV-21P amplifier main unit.
Mounting accessories.
Instruction sheet.

FAQ

Q1: What output type does the GV-21P provide?
A: It provides PNP open collector output with two channels.

Q2: What response times are available?
A: Users can select 1.5 ms, 3 ms, 10 ms, 20 ms, or 50 ms.

Q3: What is the power voltage range?
A: The unit runs on 10 to 30 VDC with 10% ripple.

Q4: How many control inputs does it have?
A: It has four control inputs: emission stop, bank switching, shift, and timing.

Q5: How much does the GV-21P weigh?
A: It weighs approximately 110 g.