Keyence PZ-G101EP Photoelectric Sensor

Keyence PZ-G101EP Photoelectric Sensor

Product Introduction

The PZ-G101EP belongs to the Keyence PZ-G series of built-in amplifier photoelectric sensors. This model uses diffuse reflective sensing with a narrow view design. It detects objects without any separate reflector, which keeps installation simple. The maximum detection distance is 200 mm for standard targets. Therefore, the sensor handles medium-range presence detection on conveyors and assembly lines.

Technicians like the PZ-G101EP for its straightforward sensitivity adjustment. A one-turn trimmer covers a 230-degree tuning range. The unit also supports switch-selectable LIGHT-ON and DARK-ON modes. Additionally, the built-in M12 pigtail connector shortens replacement time. This feature reduces machine downtime when a sensor must be swapped.

The package includes the sensor and an instruction manual. The M12 pigtail is part of the housing, so basic wiring needs no separate cable. However, long cable runs may require an extension cord. Furthermore, the compact rectangular body fits into narrow machine frames and crowded panels.

Technical Specifications

The PZ-G101EP operates on 10 to 30 VDC, including 10% peak-to-peak ripple. Current consumption stays at 34 mA or less. Its control output is a PNP open collector type. The output handles up to 30 V and 100 mA, with residual voltage below 1 V.

Key electrical parameters:

• Supply Voltage: 10 to 30 VDC (with ripple)

• Current Consumption: 34 mA or less

• Output Type: PNP open collector

• Response Time: 500 µs maximum

• Control Output: 30 V / 100 mA max

The light source is a red LED. Spot diameter measures roughly 5 mm at a 100 mm detection distance. Sensitivity adjustment uses a 1-turn trimmer with 230-degree travel. Users can select LIGHT-ON or DARK-ON operation with a switch. Two LEDs indicate status: orange for output and green for stable operation.

Mechanical and Environmental Parameters

The housing uses glass-fiber reinforced PBT, while the lens cover is polyarylate (PAR). Both materials resist impact and common factory chemicals. The mounting hole accepts a maximum torque of 0.5 N·m. Exceeding this limit can crack the housing, so follow the specification.

Environmental ratings:

• Protection Rating: IP67 / NEMA 4A, 6, 12 / IP69K

• Operating Temperature: -20 to +55 °C (no freezing)

• Relative Humidity: 35 to 85 % RH (no condensation)

• Ambient Light Resistance: 5,000 lux (incandescent) / 20,000 lux (sunlight)

• Vibration Resistance: 10 to 55 Hz, 1.5 mm double amplitude

• Shock Resistance: 1,000 m/s², 6 times per axis

Interference suppression supports up to 2 units when the automatic different frequency function is active. The M12 pigtail model weighs about 30 g. Its low weight reduces stress on brackets and moving fixtures.

Installation Guide

First, mount the PZ-G101EP through the mounting holes in its rectangular housing. Keep torque at or below 0.5 N·m. Align the sensing face squarely with the target surface. A tilted angle weakens the received light and shortens the usable range.

Next, connect the M12 pigtail to the control panel. Verify the pin assignment matches the PNP output type. Route the pigtail away from high-voltage lines and moving machinery. Additionally, fasten the cable with ties to prevent connector strain.

After power-up, check the green stability LED. Turn the sensitivity trimmer slowly with a small screwdriver until the orange output LED responds correctly. Test the setup with sample targets at the expected distance. Finally, confirm the LIGHT-ON or DARK-ON setting matches the machine logic.

Packaging List

• PZ-G101EP sensor unit × 1

• Instruction manual × 1

Note: Extension cables are sold separately. Certificates and warranty documents are not included.

FAQ

Q1: What is the maximum detection distance of the PZ-G101EP?
The sensor detects standard white targets up to 200 mm away at maximum sensitivity. Real range varies with target color and surface finish.

Q2: Does this model include a cable?
The PZ-G101EP has a built-in M12 pigtail connector. An extension cable is not included, so order one separately for longer runs.

Q3: Can the PZ-G101EP survive washdown cleaning?
Yes. It holds an IP69K rating plus NEMA 4A, 6, and 12 approvals. The housing resists water spray and dust in food and beverage plants.

Q4: How do I switch between LIGHT-ON and DARK-ON?
A switch on the sensor body selects the mode. Consult the instruction manual for the exact switch position.

Q5: What response time does this sensor provide?
The PZ-G101EP responds within 500 µs maximum. This speed suits most conveyor, packaging, and assembly detection tasks.