Product Description
The Keyence GL-VM48HN is a compact Type 4 safety light curtain. Moreover, it belongs to the GL-V series. This model uses 48 beam axes for hand protection. In addition, the metal housing is small and robust. Therefore, it fits tight machine guards and production cells. The transmitter and receiver pair work as an ESPE / AOPD set. Also, optical synchronization keeps wiring simple. A red infrared LED at 850 nm handles detection. As a result, the unit turns ON only when all beam axes receive light. This design helps protect operators near moving parts. For example, the GL-VM48HN suits presses, robots, and automated assembly lines.
Keyence builds this model for fast response and stable operation. For instance, the response time is max. 5.8 ms. In addition, the minimum detectable object is ø25 mm. The detection height is 940 mm. Moreover, the total length is 960 mm. Beam axis spacing is 20 mm. Furthermore, the detecting distance runs from 0.3 to 15 m. The NPN output works with many control systems. Also, the IP65 / IP67 rating supports harsh factory floors. The unit also meets major safety standards. These include IEC61496, EN ISO13849-1, IEC61508, and UL. Consequently, for engineers, the GL-VM48HN offers a clear balance of size, speed, and safety compliance.
Technical Specifications
All data below comes from official Keyence GL-V series information. Therefore, the table lists core parameters for fast selection.
| Item | Specification |
|---|---|
| Brand | Keyence |
| Model | GL-VM48HN |
| Series | GL-V series |
| Module Type | Type 4 safety light curtain, hand protection |
| Safety Light Curtain | Transmitter + Receiver set (Type 4 ESPE / AOPD) |
| Synchronization | Optical synchronization |
| Light Source | Infrared LED, 850 nm, Exempt Group (IEC62471) |
| Effective Angular Aperture | Up to ±2.5° at 3 m or above |
| Detection Mode | ON when all beam axes are received |
| Interference Prevention | Up to 2 units by series connection and switch setting |
| Protection Type | Hand protection |
| Minimum Detectable Object | ø25 mm |
| Number of Beam Axes | 48 |
| Beam Axis Spacing | 20 mm |
| Detection Height | 940 mm |
| Total Length | 960 mm |
| Detecting Distance | 0.3 to 15 m |
| Response Time | OSSD, channel 0, ON to OFF: max. 5.8 ms |
| Supply Voltage | 24 VDC -20 / +25%, ripple (P-P) 10% or less, Class 2 |
| Maximum Load Current | 150 mA or less |
| Residual Voltage (ON) | Up to 2.5 V at 5 m cable |
| OFF Voltage | Up to 2.0 V at 5 m cable |
| Leakage Current | Up to 0.8 mA |
| Max. Load Capacity | 0.8 µF |
| Load Wiring Resistance | Up to 2.5 Ω |
| Inputs | Short-circuit current approx. 3 mA |
| Control Output (OSSD) | Transistor output x2 (NPN) |
| Current Consumption | Transmitter max. 117 mA; Receiver max. 128 mA, indicator ON, OSSD output current not included |
| Built-in Ports | None |
| Protocols | None |
| Communication Expansion | None |
| Operating Temperature | -30 to +55 °C, no freezing |
| Storage Temperature | -30 to +70 °C, no freezing |
| Relative Humidity | Up to 95 % RH, no condensation |
| Ambient Light | Incandescent lamp 3,000 lux or less; Sunlight 20,000 lux or less |
| Protection Rating | IP65 / IP67 (IEC60529) |
| Overvoltage Category | II |
| Vibration Resistance | 5 to 150 Hz, 1G, 10 cycles each in X / Y / Z |
| Shock Resistance | 15 G, 6 ms pulses, 100 times each in X / Y / Z |
| Material | Main unit aluminum alloy; upper / lower case PPS (GF40%); front cover polycarbonate, SUS304 |
| Weight | Transmitter 630 g; Receiver 640 g |
| Dimensions (H × W × D) | Not available |
| Lifecycle | Active; official Keyence production status confirmed |
Installation Guide
- First, mount the transmitter and receiver face to face.
- Then, keep the detecting distance between 0.3 m and 15 m.
- After that, align both units before tightening the brackets.
- Also, use the optical sync function. No sync cable is needed.
- In addition, check the effective angular aperture. It is up to ±2.5° at 3 m or above.
- For two-unit use, set the interference prevention switch.
- Next, connect the 24 VDC supply with correct polarity.
- Then, wire the NPN OSSD outputs to the machine safety circuit.
- Moreover, keep load current below 150 mA.
- Finally, use cable with low residual voltage for stable signals.
Setup and Maintenance
- First, power the unit and check the indicator LEDs.
- Then, confirm that all 48 beam axes are received.
- After that, test the response time with a suitable safety tester.
- Also, clean the front cover with a soft, damp cloth.
- In addition, do not use abrasive cleaners on the polycarbonate cover.
- Moreover, inspect the bracket and cable for damage at each service.
- Furthermore, check the IP65 / IP67 seal after washdown or heavy dust.
- For storage, keep the unit between -30 °C and +70 °C.
- For operation, keep the unit between -30 °C and +55 °C.
- Also, keep ambient light below 3,000 lux for incandescent lamps.
- Finally, keep sunlight below 20,000 lux.
Compatibility Notes
- First, NPN output matches many PLC and safety relay inputs.
- Also, optical synchronization reduces cable runs.
- In addition, series connection supports up to 2 units.
- However, there is no built-in communication port or protocol.
- Therefore, no communication expansion option is available.
- Moreover, it works with standard 24 VDC Class 2 power supplies.
- Furthermore, protection circuits include reverse-connection, short-circuit, and surge protection.
- As a result, it suits machines that need Type 4 hand protection.
- For example, it may replace obsolete safety curtains with similar beam layout.
- Finally, contact Oiltech Controls for cross-reference support.
Certifications
- IEC61496-1 / -2: Type 4 ESPE / AOPD
- EN ISO13849-1: Category 4, PL e
- IEC61508: SIL3
- UL60947-1 / CSA C22.2 No.60947-1
- UL1998
- EMC: IEC / EN61496-1, EN55011 Class A, FCC Part15B Class A, ICES-003 Class A
- Protection rating: IP65 / IP67 (IEC60529)
- Overvoltage category: II
Typical Applications
- For example, press and stamping machines
- Also, robot cells
- In addition, automated assembly lines
- Moreover, packaging equipment
- Furthermore, material handling systems
- Besides that, machine guarding doors
- Also, palletizing systems
- In addition, textile and paper machinery
- Moreover, food and beverage production lines
- Finally, obsolete control system upgrades
Diagnostic Capability
The GL-VM48HN offers clear indicator LEDs for power and beam status. Therefore, the detection mode is ON only when all beam axes are received. If one beam is blocked, then the OSSD output turns OFF. As a result, this behavior helps users find the blocked point fast. In addition, the response time of max. 5.8 ms supports quick fault reaction. Also, the interference prevention switch helps reduce false trips when two units work near each other. Moreover, optical synchronization removes sync cable faults. Furthermore, the IP65 / IP67 housing also lowers dust and water related faults.
Why Buy From Oiltech Controls?
- First, 15+ years of industrial automation spare parts experience
- Also, global shipment support through FedEx, UPS, and DHL
- In addition, tested industrial surplus and refurbished options
- Moreover, 12-month warranty on eligible products
- Furthermore, technical verification before shipment
- Finally, support for obsolete control systems
We help you confirm model fit before you buy. For example, our team checks key data such as beam axes, detection height, output type, and voltage. As a result, this step lowers downtime risk. It also helps you avoid wrong parts. For urgent needs, contact us by email or WhatsApp. We reply fast and ship worldwide.
Package List
- 1 x Keyence GL-VM48HN transmitter
- 1 x Keyence GL-VM48HN receiver
- 1 x Installation manual, if available
- 1 x Protective packing set
- Mounting brackets and cables depend on stock configuration
Please confirm the cable length and bracket set before order. Moreover, some surplus items may ship with basic accessories only.
Shipping and Warranty
- First, shipping by FedEx, UPS, and DHL
- Also, worldwide delivery with tracking
- In addition, 12-month warranty for eligible products
- Moreover, warranty covers non-human damage under normal use
- Furthermore, contact us for RMA steps before return
- Finally, keep the original packing for safe transport
FAQ
Q: What is the detection height of the GL-VM48HN?
A: The detection height is 940 mm.
Q: How many beam axes does this model have?
A: It has 48 beam axes with 20 mm spacing.
Q: What is the minimum detectable object?
A: The minimum detectable object is ø25 mm.
Q: What is the response time?
A: The OSSD response time is max. 5.8 ms.
Q: What output type does it use?
A: It uses NPN transistor output x2.
Q: What is the detecting distance?
A: The detecting distance is 0.3 to 15 m.
Q: Does it need a sync cable?
A: No. It uses optical synchronization.
Q: Can two units work side by side?
A: Yes. Interference prevention supports up to 2 units.
Q: What is the protection rating?
A: The rating is IP65 / IP67.
Q: What is the operating temperature range?
A: The range is -30 to +55 °C, no freezing.
Q: Is the GL-VM48HN still active?
A: Yes. Official Keyence production status is confirmed.
Q: Do you offer a warranty?
A: Yes. Eligible products carry a 12-month warranty.
Q: How do you ship?
A: We ship by FedEx, UPS, and DHL.
Q: Can you help with obsolete systems?
A: Yes. We support obsolete control systems and cross-reference checks.
Q: How can I contact Oiltech Controls?
A: Email info@oiltechcontrols.com or WhatsApp +86 158 8020 0923.
Contact Information
Inquiries: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
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