Keyence GT2-71MCP PNP Amplifier Unit
The GT2-71MCP is a Keyence DIN-rail amplifier unit for GT2 series contact sensors. It provides PNP control outputs, 4-20 mA analog output, and 0.1 μm display resolution.
Product Introduction
The GT2-75N from Keyence is a high-accuracy amplifier unit built for GT2 series digital contact sensor heads. As a panel-mount main unit with NPN output, it suits control panels and machine interfaces where front access is required.
Specifically, this amplifier delivers outstanding precision with a display resolution of 0.1 μm and a display range from -199.999.9 to 199.999.9. The unit supports multi-head expansion, so one main unit can serve several measurement points across a production line.
Technical Specifications
Measurement Performance
The GT2-75N achieves high measurement accuracy for demanding industrial tasks. Its display resolution of 0.1 μm enables detection of microscopic displacement changes. Meanwhile, the display range spans -199.999.9 to 199.999.9, giving ample headroom for many measurement duties.
Response time is selectable across six levels: hsp(3)/5/10/100/500/1,000 ms. When paired with GT2-Pxxx series sensor heads, the response options shift to hsp(12)/20/40/400/2,000/4,000 ms to match different head characteristics.
Output and Control
This amplifier unit provides control outputs for versatile system integration. The control outputs include HH/HI/GO/LO/LL NPN open collector type, rated for 40 V / 50 mA maximum with residual voltage of 1 V or less.
Furthermore, the comparator output supports five judgement levels, which helps sorting and pass/fail inspection tasks. Each level can be configured independently through the front panel keys.
Input Capabilities
Control inputs on the GT2-75N accept no-voltage signals for timing, preset, reset, and bank functions. Timing input requires a minimum input time of 2 ms, while preset, reset, and bank inputs need 20 ms or more.
Power Requirements
The unit operates on 10 to 30 VDC with 10% ripple (p-p) included, Class 2 rated. Power consumption is 2,200 mW max, which equals 73.3 mA or less at 30 V. This low draw suits dense panel layouts with limited supply capacity.
Mechanical and Environmental Parameters
Physical Characteristics
The GT2-75N ships with a panel mounting bracket, a protective front cover, and a power cable. Total weight is approximately 140 g with these accessories included. The panel-mount design allows direct installation into a cutout on a control cabinet door.
Environmental Resistance
Operating temperature ranges from -10 to +50 °C with no freezing permitted. Relative humidity tolerance is 35 to 85% RH without condensation. Therefore, the unit fits most indoor industrial environments.
Installation Guide
Panel Mounting
The GT2-75N installs into a standard panel cutout using the supplied mounting bracket. First, cut the panel opening according to the drawing. Next, insert the unit from the front and secure it with the bracket from behind.
Wiring Connections
The power cable carries supply voltage and control output lines. Brown and blue conductors handle power, while the remaining wires serve the NPN outputs and input signals. Besides, shielded cable is recommended near inverters and servo drives.
Expansion Considerations
The GT2 series supports up to 15 total units, meaning one main unit plus 14 expansion units. When connecting 2 to 8 units, control output current must stay at 20 mA or less. For systems with 9 to 15 units, the current limit drops to 10 mA or less.
Packaging List
1 × GT2-75N Amplifier Unit
1 × Panel Mounting Bracket
1 × Protective Front Cover
1 × Power Supply Cable
1 × Operation Manual
Note: Sensor heads, expansion units, and communication units are sold separately.
FAQ
Q: What is the display resolution of the GT2-75N?
A: The GT2-75N offers a display resolution of 0.1 μm with a range from -199.999.9 to 199.999.9.
Q: What is the difference between the GT2-75N and the GT2-71MCP?
A: The GT2-75N uses NPN output and panel mounting, while the GT2-71MCP uses PNP output and DIN-rail mounting.
Q: Can this amplifier work as a standalone unit?
A: Yes, the GT2-75N is a main unit. It can run alone or act as the base for up to 14 expansion units.
Q: Which sensor heads are compatible with this model?
A: The GT2-75N works with GT2 series contact sensor heads, including the GT2-Pxxx range for high-precision tasks.
Q: How does shipping work for this product?
A: We ship worldwide via Fedex, UPS, or DHL. Delivery usually takes 3 to 7 business days depending on the destination.
