Keyence GT2-500 NPN Sensor Amplifier Unit

Keyence GT2-500 Digital Contact Sensor Multi-Head Amplifier

Product Introduction

The GT2-500 is a high-accuracy digital contact sensor amplifier unit from the Keyence GT2 series. This model serves as a multi-head main unit, so it manages several sensor heads at once. Moreover, it uses a DIN-rail mount, which simplifies cabinet layout. Because it provides NPN open collector outputs, the Keyence GT2-500 matches many Asian and global control systems.

Technical Specifications

First, the display range covers -199.999.9 to 199.999.9. This broad span handles both positive and negative measurement values. The display resolution reaches 0.1 µm, which supports fine positioning and inspection. Additionally, the response time offers selectable settings. Users may choose hsp(3), 5, 10, 100, 500, or 1,000 ms. When paired with GT2-Pxxx sensor heads, options extend to hsp(12), 20, 40, 400, 2,000, or 4,000 ms.

Moreover, the control input supports timing, preset, reset, and bank no-voltage input. This design makes synchronization with PLC sequences simple. The GT2-500 also provides HH, HI, GO, LO, and LL NPN open collector outputs. These outputs handle 40 V and 50 mA or less, with residual voltage at 1 V or less.

Communication relies on optional GT2 series communication units, sold separately. Besides, the main unit has no built-in ports or protocols. Therefore, plan network architecture around separate communication modules.

Electrical and Mechanical Parameters

The supply voltage ranges from 10 to 30 VDC with ripple (p-p) 10% included, Class 2. Power consumption reaches 4,800 mW, or 160.0 mA or less at 30 V. This draw is slightly higher than single-channel units because the main unit drives multiple heads. The unit weighs approximately 140 g. However, dimensions are not available in the current documentation.

Environmental Conditions

Operating temperature ranges from -10 to +50 °C without freezing. Relative humidity stays between 35 and 85 % RH without condensation. The protection rating is not available. Meanwhile, storage temperature is not specified. Therefore, install the GT2-500 inside a clean, stable control cabinet.

Installation Guide

Next, snap the GT2-500 onto a standard DIN rail inside the cabinet. First, connect the 10 to 30 VDC supply and confirm the display powers on. Then, attach each GT2 series sensor head to its channel. After that, wire the NPN outputs to the PLC or controller inputs. Finally, set the response time and bank settings for your application. Besides, keep cables away from high-voltage lines to reduce noise.

Packaging List

• 1 × Keyence GT2-500 multi-head main amplifier

• 1 × DIN-rail mounting clip

• 1 × Power supply connector

• 1 × Instruction sheet

Shipping

We ship via Fedex, UPS, and DHL. Delivery times vary by destination. Tracking numbers are provided after dispatch.

FAQ

Q1: What makes the GT2-500 different from other GT2 amplifiers?
A: The GT2-500 is a multi-head main unit. It manages several sensor heads at once and mounts on a DIN rail.

Q2: Which output type does this unit use?
A: It uses HH/HI/GO/LO/LL NPN open collector outputs. These handle 40 V and 50 mA or less.

Q3: What is the display resolution?
A: The GT2-500 offers 0.1 µm display resolution. The display range spans -199.999.9 to 199.999.9.

Q4: Does it have built-in communication ports?
A: No. It has no built-in ports or protocols. You need optional GT2 series communication units for network expansion.

Q5: How much power does the GT2-500 consume?
A: Power consumption is 4,800 mW, or 160.0 mA or less at 30 V. The supply range is 10 to 30 VDC.