What is SIL3/PLe and SIL2/PLd

The DS range of speed and standstill monitors are all SIL3/PLe and SIL2/PLd certified.

The abbreviation SIL (Safety Integrity Level) comes from the field of functional safety and is used in the international standard IEC 61508. The specific standard of safety-relevant electrical control systems is defined in the IEC or EN 62061.

The reliability of safety functions of electrical systems is classified into four different safety integrity levels. These classifications are SIL1 to SIL4. SIL1 is the lowest reliability classification, and SIL4 is the highest. The DS range of safety speed monitors can achieve a SIL3 safety integrity level.

PL (Performance Level) is used similarly to the safety integrity level when classifying safety classes. The performance level falls under the standard ISO 13849. This classification takes place from PLa to PLe. PLa has the lowest risk reduction, and PLe has the highest. The DS range of safety relays is certified up to PLe.

The picture below depicts the risk analysis, which assists in the calculation of the performance level. The first analysis step, S determines the severity of the injuries that can be sustained due to an accident. The analysis F deals with the frequency of a possible accident or the duration of the user’s stay under the risk. There is also a section regarding the possibility of avoiding the threat and the limitation of the damage that might occur. Consequently, high-risk applications require components with the highest performance level PLe, such as the DS Range of speed monitors.

The table in the picture compares the performance level to the corresponding safety integrity level. As a result, the combinations SIL3/PLe and SIL2/PLd can be derived.

What is sil3/PLe and SIL2/PLd

Remote control as part of innovation in leek cultivation [video]

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The research station for vegetable cultivation (PSKW) in Belgium is a test facility focused on research, development, and innovation in the agricultural sector. The organization has recently provided a Tyro wireless remote control on a New Holland tractor. In combination with a GPS system, one person is less required for leek cultivation. This is not only during harvesting but for all tasks at the testing facility.

The GPS with which a preset line is followed.

Leek cultivation with the assistance of a remote control.

The New Holland tractor is operated by a GPS in the tractor. This system steers the wheels of the tractor automatically. A preset line is followed, which is also followed when planting the leeks. By applying the necessary safety measures no one is required to sit in the tractor. The GPS system, combined with our wireless Pyxis remote control, allows the tractor to carry out all types of actions.

 

Operate a tractor with a remote control

Due to the 8 functions of the remote control, the driver can stop the tractor, drive it in reverse, and then drive forward. When the ground is wet the tractor must be driven slower and when on dry ground the driving speed can be increased. Next to that, the drives of the machine can be switched on or off, and with the assistance of the remote control the machine is lowered and then raised again.

Tyro remote controls are used in very tough applications.

 

Safety

By pressing the stop button on the top side of the controls everything switches off immediately. The tractor is provided with an obstacle safety provision that stops the tractor if a part breaks down. As an extra safety measure, the range is set to +/- 30 meters; the system immediately cuts out as soon as there is no contact between the remote control and the receiver. 

List of functions

  • Forward drive, reverse drive
  • Start, stop
  • Speeding up, slowing down
  • Pto shaft in/out
  • Stop button: The motor of the tractor completely shut down
  • Out-of-range protection

Video of application

Below is a short video in which the remote control is used for harvesting leeks. Here you can see that the leek falls onto a conveyor belt. The leek is then taken from here and placed in a metal box. As soon as this is full a new box will be loaded and can be driven further.

The wireless control is not only used for harvesting but also when planting, sowing, and hoeing of the leek. In the meantime, the PSKW has also provided their other tractors with a Tyro remote control.

Mobile Equipment

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Unleashing Efficiency and Safety for Your Operations  

When it comes to system design and integration for mobile equipment, we are the industry leader. We take a comprehensive approach, partnering with the Engine OEM and the Machine OEM to enhance productivity, maximize uptime, and prioritize safety.

Our integrated solutions cater to the needs of both the machine OEM and the end user. For instance, we offer durable plug-and-play subsystems, including engine control panels with variable speed capabilities, wireless machine control, and cloud-based remote monitoring and diagnostics. Our CANbus-based hardware seamlessly ties it all together with optimized wire harnesses, sensors, and HMI products.

No matter your mobile equipment application, we’ve got you covered. We start by thoroughly understanding your requirements, specifications, and scope of work. Next, our team of experienced application engineers, project managers, and product experts will collaborate with you throughout the development process.

Mobile Equipment Applications

TRAILER MOUNTED EQUIPMENT

Airport ground support

Cable reels

Concrete line pumps

Generators

Industrial cleaning

Light towers and signs

Road maintenance

Water pumps

Wood chippers

WORK TRUCKS

Aerial work platforms

Bulk feed trailers

Car transport

Concrete mixers

Concrete volumetric mixers

Digger derricks

Fire apparatus

Hook lifts

Knuckle boom cranes

Service truck cranes

Tow recovery

Trailer axle steering

Vacuum trucks

CONSTRUCTION EQUIPMENT

Excavators

Mobile conveyors

Paving equipment

Rock crushers and screeners

Wheel loaders

MINI CONSTRUCTION & FORESTRY

Forwarders

Harvesters

Horizontal boring

Skid steer loaders

Stump grinders

Trenching

mobile wood chipper cutting logs

AGRICULTURE

Bale wrappers

Frost protection

Harvesters

Mobile conveyors

Mulchers

Planters

Seed tenders

Sprayers

Turf placement

 

MINING

Conveyors

Drills

Feeder breakers

General dewatering

Generators

LHDs and Light towers

Network/Communications

Rock breakers

Roof bolters

Shotcrete sprayer

Wheel dozers

IP Ratings for Industrial Remote Control Systems

IP is an acronym for Ingress Protection and is a standard set by the International Electrotechnical Commission (IEC) 60529 to classify the degree of protection by an electronic device against the intrusion of foreign objects such as dust and water. An IP rating consists of two numbers, each representing a different aspect of protection.

  • The first number refers to the level of protection against solid objects such as dust.
  • The second number relates to the degree of protection against liquids.

 

This article explains the different IP ratings focusing on water ingress.

IP65 Rating

An IP65 rating means the product is protected against dust and low-pressure water jets from any direction.

  • (6) indicates that the product has high protection against dust, making it nearly completely dust-tight.
  • (5) – shows the product is protected against low-pressure water jets from any direction, meaning it can withstand moderate water exposure without damage.

A product with an IP65 rating is ideal for outdoor use, as it is protected from dust and water. The product is durable and can withstand harsh environmental conditions, making it a reliable choice for various industries such as construction, manufacturing, and outdoor environments.

If you are looking for a product that can withstand tough conditions and provide efficient performance in dusty or wet environments, choosing one with an IP65 rating is a wise choice.

IP66 Rating

An IP66 rating means the product is protected against dust and high-pressure water jets from any direction.

  • (6) – indicates a high level of protection against dust, making it nearly completely dust-tight.
  • (6) – signifies that the product can withstand powerful water jets without damage.

This makes an IP66-rated product suitable for use in harsh outdoor environments where there may be exposure to heavy rain or strong water sprays. Products with this rating are commonly used in industries such as marine, agriculture, and food processing, where there is a need for durable and waterproof equipment.

If you require a product that can withstand dust and strong water jets, opting for one with an IP66 rating will provide you with the necessary protection and performance.

IP67 Rating

An IP67 rating means the product is completely protected against dust and can withstand immersion in water up to one meter for a limited time.

  • (6) – indicates a high level of protection against dust, making it nearly completely dust-tight.
  • (7) – shows that the product can withstand temporary submersion in water without any damage.

This level of protection makes the product suitable for outdoor use, including marine and industrial environments where it may be exposed to significant dust exposure or water submersion. Products with an IP67 rating are commonly used in the automotive industry as they can withstand high-pressure water jets during car washes or heavy rain while driving. The rating ensures the product is durable and reliable in harsh conditions, making it a preferred choice for various applications where dust and water resistance are essential.

If you need a product that can withstand extreme conditions without compromising performance, choosing one with an IP67 rating is a smart decision.

IP68 Rating

An IP68 rating means the product is fully protected against dust and can withstand continuous immersion in water under specified conditions.

  • (6) – indicates a high level of protection against dust, making it nearly completely dust-tight.
  • (8) – signifies that the product can withstand prolonged submersion in water without any damage.

This makes an IP68 rating suitable for extreme outdoor environments such as construction sites or underwater applications. Products with an IP68 rating are commonly used in the electronics industry to ensure that electronic components are well-protected from dust and water ingress. With this level of protection, you can trust that your product will continue to function even when exposed to harsh environmental conditions.

If you need a product that can withstand complete dust and water immersion without compromising performance, opting for one with an IP68 rating is the way to go.

Wireless Anti-Two Block Switch Systems for Traditional ATB

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This Wireless ATB is designed to be a simple cost-effective replacement for traditional ATB systems.

With a quick installation, it is an easy way to remove the headaches associated with the wires, rusted contact, and loose springs of traditional ATB systems.

This wireless system eliminates both the cable reel and the anti-two block switch and the headaches associated with them. The self-contained switch is immune to mechanical failures and water damage since both the switch and the receiver are designed with solid state components which are fully encapsulated; the system is designed to be as hassle-free as possible. There’s no need to worry about the potential for a cable being broken by branches or other objects and no more need for a cable reel.

This is also a perfect solution to eliminate the corrosion factor in the reel contacts and their loose springs. Installation is as simple as mounting the wireless switch at the boom tip and installing the receiver at the base of the boom. This simple installation allows OEMs to reduce manufacturing costs by removing brackets, wire guides, and the associated labor.

Systems:

Wireless Anti-Two Block Switch
Wireless 2.4GHz Anti-Two Block Switch Transmitter System