GL-VM30LN Keyence GL-V Series 30-Beam NPN Safety Light Curtain

GL-VM30LN Keyence Safety Light Curtain: 1200 mm Body Guarding for Long Openings

The GL-VM30LN extends the Keyence GL-V series to tall body-access zones. It runs 30 beam axes across a 1160 mm detection height. The 40 mm beam spacing targets torso and limb entry, not finger contact. NPN output suits PLC inputs common in Asian and European panels. A 1200 mm total length covers full operator walk-in areas on presses, wrappers, and robot cells.

Core Specifications

• Model: GL-VM30LN
• Brand: Keyence
• Series: GL-V series
• Type: Type 4 ESPE / AOPD, body protection
• Beam axes: 30 axes, 40 mm spacing
• Detection height: 1160 mm
• Total length: 1200 mm
• Detectable object: ø45 mm
• Range: 0.3 to 15 m
• Response time: max. 5.1 ms (OSSD, channel 0, ON→OFF)
• Output: NPN transistor x2 (OSSD)
• Weight: 780 g transmitter, 790 g receiver

Electrical Profile

• 24 VDC supply with -20/+25% tolerance and 10% ripple.
• Transmitter draws 128 mA; receiver draws 142 mA with indicator ON.
• Maximum load current sits at 150 mA or less.
• ON residual voltage reaches 2.5 V; OFF voltage stays below 2.0 V.
• Leakage current maxes at 0.8 mA with 0.8 µF load capacity.
• Load wiring resistance should not exceed 2.5 Ω.
• Short-circuit input current sits near 3 mA.

Mechanical and Environmental Ratings

• Main body uses aluminum alloy for rigidity.
• Upper and lower case use PPS with 40% glass fiber.
• Front cover combines polycarbonate and SUS304.
• Operating temperature spans -30 to +55 °C without freezing.
• Storage temperature spans -30 to +70 °C.
• Humidity tolerance reaches 95% RH without condensation.
• Ambient light immunity handles 3,000 lux incandescent and 20,000 lux sunlight.
• IP65/IP67 rating supports washdown and dust-heavy floors.
• Vibration resistance covers 5 to 150 Hz at 1G in X, Y, Z.
• Shock resistance handles 15 G pulses for 6 ms, 100 times per axis.

Optical and Safety Logic

• Infrared LED at 850 nm falls under Exempt Group IEC62471.
• Effective angular aperture reaches ±2.5° at 3 m or more.
• Detection turns ON only when all 30 beam axes are received.
• Optical synchronization removes the sync cable between units.
• Interference prevention supports 2 units via series connection.
• Protection circuits cover reverse connection, short circuit, and surge.

Compliance and Certifications

• IEC61496-1/-2 Type 4 ESPE / AOPD
• EN ISO13849-1 Category 4, PL e
• IEC61508 SIL3
• UL60947-1 and CSA C22.2 No.60947-1
• UL1998
• EMC: EN55011 Class A, FCC Part15B Class A, ICES-003 Class A

NPN vs PNP: Which GL-V Model Fits Your Panel?

• GL-VM30LN uses NPN output for sinking PLC inputs.
• GL-VM40HP and GL-VM04LP use PNP for sourcing inputs.
• Pick NPN when your safety relay or PLC input pulls to 0 V.
• Pick PNP when your input expects a positive voltage signal.
• Mixing output types on one machine adds wiring complexity.
• Match the output to your existing panel standard first.

Recommended Equipment Pairings

• Hydraulic and mechanical press bodies
• Robot cell entry doors and gates
• Palletizing and depalletizing stations
• Large packaging and wrapping machines
• Vertical storage lift openings
• Legacy GL-V replacements where 1200 mm length is fixed

Why Buy From Oiltech Controls?

• We draw on more than 15 years of industrial automation spare parts work.
• We ship worldwide through FedEx, UPS, and DHL.
• We stock tested surplus and professionally refurbished units.
• Every order carries a 12-month warranty.
• We test and verify each unit before it leaves our floor.
• We keep obsolete and discontinued control systems alive.
• Most orders dispatch within 24 to 28 hours.

FAQ: GL-VM30LN Selection and Experience

Q: Can this model detect a hand instead of a body?

A: No. The ø45 mm resolution suits body protection. Use a 20 mm or 25 mm pitch model for hand or finger detection.

Q: My PLC input is sourcing. Will NPN work?

A: No. NPN sinks current to 0 V. Choose the PNP version of the GL-V series for sourcing inputs.

Q: How do I calculate the safety distance?

A: Use ISO 13855 with the 5.1 ms response time plus your machine stop time and approach speed.

Q: Can I run two GL-VM30LN sets side by side?

A: Yes. Series connection and switch setting prevent interference for up to 2 units.

Q: Should I buy surplus or refurbished for a legacy line?

A: Buy tested surplus when the fixture is fixed and budget is tight. Buy refurbished when the model is discontinued but the mounting stays.

Oiltech Controls Review: Field Notes on the GL-VM30LN

• The 1200 mm length rarely needs cutting or adapters on standard press guards.
• NPN output simplifies retrofits on older Japanese and Asian control panels.
• Low current draw avoids overloading small 24 VDC supplies.
• Optical sync cuts installation time on long runs.
• Always confirm the 1160 mm detection height against your actual opening.

Contact Oiltech Controls

Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923

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