KV-AD40G Keyence High-precision A/D Conversion Unit KV Series

KV-AD40G Keyence High-precision A/D Conversion Unit

The KV-AD40G is a high-precision analog input module for Keyence KV series PLC systems. Moreover, it offers four differential input points. Therefore, it suits fast and stable industrial measurement.

This unit supports voltage and current signals. In addition, it delivers high resolution and strong noise immunity. As a result, it is ideal for production lines, test benches, and process control.

Why Choose KV-AD40G

• High accuracy: ±0.05 % of F.S. at 25 °C.
• Fast conversion: 80 µs for 2 channels.
• Flexible input: Voltage and current ranges.
• Strong isolation: Photocoupler insulation between units and channels.
• Smart buffering: Up to 10000 words per channel.

Technical Data

• Brand: Keyence
• Model: KV-AD40G
• Series: KV series
• Product type: High-precision A/D conversion unit
• Analog input points: 4 points, differential input
• Input resistance: Voltage 5 MΩ, current 250 Ω
• Conversion speed: 80 µs/2 ch, 160 µs/4 ch
• Fast mode: 50 µs/2 ch, 100 µs/4 ch with data buffer
• Voltage range: -10 to 10 V, 0 to 10 V, 0 to 5 V, 1 to 5 V
• Current range: 0 to 20 mA, 4 to 20 mA
• Resolution: 0.33 mV, 0.17 mV, 0.67 µA
• Accuracy at 25 °C: ±0.05 % of F.S.
• Accuracy at 0 to 50 °C: ±0.1 % of F.S.
• Insulation: Photocoupler insulation
• Absolute max input: Voltage ±15 V, current 30 mA
• External trigger: 1 point, NPN open collector
• Buffer period: 50 µs to 3 s
• Buffer data: Max 10000 words per channel
• Current consumption: 220 mA or less
• Weight: Approx. 190 g

Measurement Performance

• Measuring range: Voltage ±10 V, current 0 to 20 mA
• Frequency response: Fast sampling for dynamic signals
• Sensitivity: 0.17 mV and 0.67 µA minimum steps
• Linearity: ±0.05 % of F.S. at 25 °C
• Resolution: Up to 1/60,000
• Temperature range: 0 to 50 °C
• Environment tolerance: Stable in industrial cabinets
• Noise immunity: Photocoupler isolation and differential input

Special Functions

• Scaling and average processing
• Moving average and primary delay filter
• Data offset and zero shift
• Zero clip and peak/valley lock
• Comparator and wire breaking detection
• Data buffering and external trigger

Installation Guide

• First, mount the unit on a Keyence KV series base.
• Then, use shielded twisted pair cables for analog signals.
• Also, keep signal wires away from power lines.
• In addition, connect the external trigger with an NPN open collector.
• Moreover, check polarity before power on.
• Finally, tighten terminals to reduce contact resistance.

Setup and Maintenance

• First, set input range in the PLC software.
• Then, use scaling to match engineering units.
• Also, enable average processing for stable readings.
• However, check wiring if the wire break alarm appears.
• Meanwhile, clean the module with dry air only.
• Therefore, do not open the housing during operation.

Compatibility

• Works with Keyence KV series PLC systems.
• Also supports differential voltage and current sensors.
• In addition, pairs with external trigger switches and NPN sensors.
• Moreover, fits standard Keyence I/O mounting bases.

Certifications and Compliance

• Built to Keyence industrial quality standards.
• Also designed for CE compliant control panels.
• In addition, RoHS compliant in typical industrial use.
• Moreover, photocoupler insulation meets safety needs.

Package List

• 1 x KV-AD40G unit
• 1 x Quick start guide
• 1 x Protective packing box

Warranty and Shipping

• Warranty: 12 months.
• Dispatch: 12 to 24 hours after payment.
• Courier: FedEx, UPS, or DHL.
• Tracking: Shared once the parcel ships.

Expert Review

The KV-AD40G is a solid choice for fast analog data capture. Moreover, it combines high resolution with strong isolation. Therefore, the buffer function helps capture short events. As a result, it works well in noisy factory floors.

For engineers, the module reduces signal drift. In addition, it simplifies peak and valley detection. Moreover, the comparator and wire break detection add real value.

Manager’s Insight

This module cuts downtime and improves process quality. Therefore, it fits projects that need fast sampling and stable data. In addition, the 12-month warranty and quick dispatch lower buying risk.

For system integrators, it is a practical spare part. Meanwhile, for OEM builders, it is a reliable analog front end.

Best Applications

• Production line inspection
• Test and measurement benches
• Pressure and flow monitoring
• Temperature and position feedback
• Process control cabinets
• Machine condition monitoring

Suitable Equipment

• Keyence KV series PLCs
• Analog sensors with voltage output
• 4 to 20 mA transmitters
• NPN trigger devices
• Industrial data loggers

FAQ

Q: What is the KV-AD40G used for?

A: It converts analog signals into digital data. Moreover, it works with Keyence KV series PLCs.

Q: How many channels does it have?

A: It has four differential input points. In addition, two channels convert in 80 µs.

Q: Does it support current input?

A: Yes. For example, it supports 0 to 20 mA and 4 to 20 mA.

Q: What is the resolution?

A: It reaches 0.33 mV and 0.67 µA. Moreover, the best range is 1/60,000.

Q: Can it detect a broken wire?

A: Yes. In addition, it includes wire breaking detection.

Q: How fast is the data buffer?

A: The buffer period starts at 50 µs. Furthermore, it stores up to 10000 words per channel.

Q: What courier do you use?

A: We ship by FedEx, UPS, or DHL. Therefore, you get a tracking number fast.

Q: How long is the warranty?

A: The warranty is 12 months. In short, your purchase is well protected.

Q: How fast do you ship?

A: We dispatch within 12 to 24 hours. As a result, downtime stays short.

Q: Can I use it with a 4 to 20 mA transmitter?

A: Yes. For instance, it supports 4 to 20 mA input. Moreover, this is common in process control.

Q: What should I check before buying?

A: First, check your PLC series and input type. Then, match the voltage or current range. Finally, confirm the mounting base.

Q: How do I reduce noise?

A: First, use shielded cables and differential wiring. Also, keep cables away from motors. Then, enable average processing in software.

Q: What if the reading drifts?

A: First, check grounding and cable routing. Then, use zero shift and scaling. Finally, confirm the sensor supply is stable.

Q: Is it easy to replace?

A: Yes. In addition, it mounts on the same base. Moreover, you can copy settings in the PLC software.

Q: Who should buy this module?

A: It suits automation engineers and maintenance teams. Furthermore, it also fits OEM machine builders.

Q: Where can I get help?

A: Contact sales@powergearx.com or +86 18030005825. Therefore, our team can reply fast.

Buying Guide

• First, confirm your PLC supports the KV series.
• Then, match the input range to your sensor.
• Also, choose voltage input for fast signals.
• In addition, choose current input for long cables.
• Moreover, check the number of channels you need.
• Finally, plan for shielded wiring and good grounding.

Need a quote? Contact sales@powergearx.com or +86 18030005825. In short, we reply fast and ship fast.

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